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Engine Parts & Tuning Hardware

Unleash Your Engine's Power: Performance Parts & Accessories

At Optimiz Access, we offer a vast lineup of engine performance parts and accessories to boost the output of your sports vehicle or premium automobile. Optimize your engine for extreme performance and enjoy an exhilarating driving experience on both road and track.

Key benefits of engine tuning: substantial horsepower and torque gains for rapid acceleration, sharper throttle response, enhanced mechanical reliability using high-strength components, and tailored custom tuning suited to all engines.

Essential Products to Maximize Engine Performance

Discover all our precision-engineered components designed to increase efficiency and durability in your engine block:

  • Cold Air Intakes & Air Filtration – Performance sports filters and carbon intake systems for maximum air filling.
  • Intercoolers & Charge Coolers – Efficient intake air cooling to sustain consistent power output under heavy loads.
  • Forged Pistons & Connecting Rods – Heavy-duty internal components built to withstand extreme temperatures and boost pressures.
  • Turbos & Superchargers – Forced induction upgrades delivering significant power increases.
  • Ignition & Servicing – Competition spark plugs, high-output ignition coils, and high-performance oil filters.

Industry-Leading Benchmark Brands

We stock top tuning and motorsport manufacturers: Wagner Tuning, Forge Motorsport, Magnecor, Green Filter, BMC Filter, NGK, Vibra Technics, and Powerflex. We also supply OEM factory parts to ensure meticulous engine maintenance.

Why you should Choose Optimiz Access for Your Engine Upgrades

Since 2010, Optimiz Access has specialized in selecting top-tier engine components for the custom upgrading and maintenance of sports vehicles. Located in northern France (Hauts-de-France) — near Lille, Valenciennes, Cambrai, Arras, Seclin, Douai, and Saint-Quentin —, our expert technicians guide your hardware selection and provide professional installation in our workshop. We ensure strict quality control along with fast worldwide shipping.

Unleash Your Engine's Full Potential Today

Give your car the raw power and sharp response it deserves. Trust the expertise of Optimiz Access, select your engine performance parts today, and benefit from our fast dispatch.

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  • Categories: Préparation intérieure
  • Categories: Refroidissement
  • Categories: Support moteur
  • Categories: Suralimentation (Turbo)
Genuine RENAULT Oil Drain Plug - All Clio/Mégane RS Models
      Protect your engine against critical leaks! Replace your genuine oil drain plug with this RENAULT reference, essential for all Clio RS , Mégane RS models and competition derivatives (Gr N, R3, X85 Cup). A quality screw guarantees the seal of the oil pan (sump), preventing a ...
      €4.72Price
      Genuine RENAULT Oil Drain Plug - All Clio/Mégane RS Models
          Protect your engine against critical leaks! Replace your genuine oil drain plug with this RENAULT reference, essential for all Clio RS , Mégane RS models and competition derivatives (Gr N, R3, X85 Cup). A quality screw guarantees the seal of the oil pan (sump), preventing a ...
          €4.72Price
          Vis de bielle origine
              Secure your performance engine's bottom end with this genuine RENAULT connecting rod bolt , sold individually. Engineered to withstand high RPMs, it is essential for the maintenance and personalization of Clio 2 RS , Clio 3 RS , Megane 2/3 RS , and Clio Williams ...
              €8.56Price
              Vis de bielle origine
                  Secure your performance engine's bottom end with this genuine RENAULT connecting rod bolt , sold individually. Engineered to withstand high RPMs, it is essential for the maintenance and personalization of Clio 2 RS , Clio 3 RS , Megane 2/3 RS , and Clio Williams ...
                  €8.56Price
                  Durite Silicone liaison conduit air turbo Megane 2 RS pour tubulure FORGEDurite Silicone liaison conduit air turbo Megane 2 RS pour tubulure FORGE
                      Durite Silicone liaison conduit air turbo Megane 2 RS Durite visible sur le dessus du moteur
                      €14.22Price
                      Durite Silicone liaison conduit air turbo Megane 2 RS pour tubulure FORGEDurite Silicone liaison conduit air turbo Megane 2 RS pour tubulure FORGE
                          Durite Silicone liaison conduit air turbo Megane 2 RS Durite visible sur le dessus du moteur
                          €14.22Price
                          En Stock
                          €66.48 Price
                          En Stock
                          €66.48 Price
                          Coussinets de Vilebrequin Trimetal ergotés ACLCoussinets de Vilebrequin Trimetal ergotés ACL
                              Coussinet de vilebrequin trimetal Coussinets pour F7P, F7R, F4R, F4R soit pour Clio 16S, Williams, clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS Présence d'ergots.
                              €66.48Price
                              Coussinets de Vilebrequin Trimetal ergotés ACLCoussinets de Vilebrequin Trimetal ergotés ACL
                                  Coussinet de vilebrequin trimetal Coussinets pour F7P, F7R, F4R, F4R soit pour Clio 16S, Williams, clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS Présence d'ergots.
                                  €66.48Price
                                  En Stock
                                  €251.47 Price
                                  En Stock
                                  €251.47 Price
                                  Kit Joint Refection moteur Origine Megane 3 RSKit Joint Refection moteur Origine Megane 3 RS
                                      Ensemble de joints nécessaire au bon remontage du moteur de Megane 3 RS Véritable produit d'origine
                                      €251.47Price
                                      Kit Joint Refection moteur Origine Megane 3 RSKit Joint Refection moteur Origine Megane 3 RS
                                          Ensemble de joints nécessaire au bon remontage du moteur de Megane 3 RS Véritable produit d'origine
                                          €251.47Price
                                          En Stock
                                          €345.64 Price
                                          En Stock
                                          €345.64 Price
                                          Conduit d'eau refroidissement turbo Megane 2 RSConduit d'eau refroidissement turbo Megane 2 RS
                                              Conduite d'eau refroidissement Turbo pour Megane 2 RS
                                              €345.64Price
                                              Conduit d'eau refroidissement turbo Megane 2 RSConduit d'eau refroidissement turbo Megane 2 RS
                                                  Conduite d'eau refroidissement Turbo pour Megane 2 RS
                                                  €345.64Price
                                                  En Stock
                                                  €5.63 Price
                                                  En Stock
                                                  €5.63 Price
                                                  Joint de queue de soupape
                                                      Joint de queue de soupape Attention pour Megane 3 RS les joints sont différents entre admission et échappement Vendu à l'unité
                                                      €5.63Price
                                                      Joint de queue de soupape
                                                          Joint de queue de soupape Attention pour Megane 3 RS les joints sont différents entre admission et échappement Vendu à l'unité
                                                          €5.63Price
                                                          Dump Valve ouverte Forge Megane 4 RSDump Valve ouverte Forge Megane 4 RS
                                                              Dump Valve ouverte Forge Megane 4 RS Permet de faire le bruit de decharge du turbo fortement apprécié.
                                                              €299.00Price
                                                              Dump Valve ouverte Forge Megane 4 RSDump Valve ouverte Forge Megane 4 RS
                                                                  Dump Valve ouverte Forge Megane 4 RS Permet de faire le bruit de decharge du turbo fortement apprécié.
                                                                  €299.00Price
                                                                  En Stock
                                                                  €2.08 Price
                                                                  En Stock
                                                                  €2.08 Price
                                                                  Collier serrage inox (durite) diametre 60-80mmCollier serrage inox (durite) diametre 60-80mm
                                                                      Collier serrage inox (durite) diametre 60-80mm Vendu à l'unité
                                                                      €2.08Price
                                                                      Collier serrage inox (durite) diametre 60-80mmCollier serrage inox (durite) diametre 60-80mm
                                                                          Collier serrage inox (durite) diametre 60-80mm Vendu à l'unité
                                                                          €2.08Price
                                                                          Sonde pression Twingo R2New Genuine Renault Sport Oil Pressure Sensor - Clio R3 & Twingo R2
                                                                              This new oil pressure sensor , from the Renault Sport competition catalog , is a vital safety part for the rally engines of the Renault Clio R3 and Twingo R2 . It is essential for monitoring lubrication and thereby preventing catastrophic engine failures caused by a lack or drop in oil pressure.
                                                                              €195.78Price
                                                                              Sonde pression Twingo R2New Genuine Renault Sport Oil Pressure Sensor - Clio R3 & Twingo R2
                                                                                  This new oil pressure sensor , from the Renault Sport competition catalog , is a vital safety part for the rally engines of the Renault Clio R3 and Twingo R2 . It is essential for monitoring lubrication and thereby preventing catastrophic engine failures caused by a lack or drop in oil pressure.
                                                                                  €195.78Price
                                                                                  En Stock
                                                                                  €27.47 Price
                                                                                  En Stock
                                                                                  €27.47 Price
                                                                                  Joint de turbo sur collecteur Megane 2 RS Megane 3 RS
                                                                                      Optimize your F4RT engine's sealing with this genuine RENAULT turbocharger to manifold gasket . Specifically designed for the Renault Megane 2 RS and Megane 3 RS , it is the essential component to maintain nominal boost pressure. Do not risk an exhaust leak that would degrade your performance and the...
                                                                                      €27.47Price
                                                                                      Joint de turbo sur collecteur Megane 2 RS Megane 3 RS
                                                                                          Optimize your F4RT engine's sealing with this genuine RENAULT turbocharger to manifold gasket . Specifically designed for the Renault Megane 2 RS and Megane 3 RS , it is the essential component to maintain nominal boost pressure. Do not risk an exhaust leak that would degrade your performance and the...
                                                                                          €27.47Price
                                                                                          En Stock
                                                                                          €1.00 Price
                                                                                          En Stock
                                                                                          €1.00 Price
                                                                                          Collier serrage inox (durite) diametre 8-12mm
                                                                                              Collier serrage inox (durite) diametre 8-12mm Vendu à l'unité
                                                                                              €1.00Price
                                                                                              Collier serrage inox (durite) diametre 8-12mm
                                                                                                  Collier serrage inox (durite) diametre 8-12mm Vendu à l'unité
                                                                                                  €1.00Price
                                                                                                  En Stock
                                                                                                  €5.66 Price
                                                                                                  En Stock
                                                                                                  €5.66 Price
                                                                                                  Vis de fixation galet enrouleur de distribution K4MVis de fixation galet enrouleur de distribution K4M
                                                                                                      Vis de fixation galet enrouleur de distribution K4M 8200581340
                                                                                                      €5.66Price
                                                                                                      Vis de fixation galet enrouleur de distribution K4MVis de fixation galet enrouleur de distribution K4M
                                                                                                          Vis de fixation galet enrouleur de distribution K4M 8200581340
                                                                                                          €5.66Price
                                                                                                          Joint de Culasse Clio 3 RS y compris Clio R3 et X85 Cup
                                                                                                              Joint de Culasse Clio 3 RS y compris Clio R3 et X85 Cup Véritable produit d'origine
                                                                                                              €89.65Price
                                                                                                              Joint de Culasse Clio 3 RS y compris Clio R3 et X85 Cup
                                                                                                                  Joint de Culasse Clio 3 RS y compris Clio R3 et X85 Cup Véritable produit d'origine
                                                                                                                  €89.65Price
                                                                                                                  Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
                                                                                                                      Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
                                                                                                                      €37.90Price
                                                                                                                      Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
                                                                                                                          Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
                                                                                                                          €37.90Price
                                                                                                                          Dump Valve GFB DV+ - Diverter Valve Clio 4 RS - Megane 4 RS et Megane 4 GTGFB DV+ Diverter Valve - Renault Clio 4 RS / Megane 4 GT / Megane 4 RS / Alpine A110
                                                                                                                              Stop losing your turbo boost! The GFB DV+ Dump Valve (Diverter Valve) is the essential upgrade for the reliability and responsiveness of your Renault Sport 1.6T and 1.8T engine (Clio 4 RS, Megane 4 GT, Megane 4 RS, Alpine A110). Retain the factory electronics...
                                                                                                                              €127.86Price
                                                                                                                              Dump Valve GFB DV+ - Diverter Valve Clio 4 RS - Megane 4 RS et Megane 4 GTGFB DV+ Diverter Valve - Renault Clio 4 RS / Megane 4 GT / Megane 4 RS / Alpine A110
                                                                                                                                  Stop losing your turbo boost! The GFB DV+ Dump Valve (Diverter Valve) is the essential upgrade for the reliability and responsiveness of your Renault Sport 1.6T and 1.8T engine (Clio 4 RS, Megane 4 GT, Megane 4 RS, Alpine A110). Retain the factory electronics...
                                                                                                                                  €127.86Price
                                                                                                                                  Gicleur Piston 1-3 Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                      Gicleur Piston 1-3 Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                      €33.55Price
                                                                                                                                      Gicleur Piston 1-3 Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                          Gicleur Piston 1-3 Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                          €33.55Price
                                                                                                                                          Linguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RSLinguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RS
                                                                                                                                              Linguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RSVéritable produit d'origine
                                                                                                                                              €90.76Price
                                                                                                                                              Linguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RSLinguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RS
                                                                                                                                                  Linguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RSVéritable produit d'origine
                                                                                                                                                  €90.76Price
                                                                                                                                                  Lot de 2 bouchons silicone pour suppression résonateur Clio 4 RSLot de 2 bouchons silicone pour suppression résonateur Clio 4 RS
                                                                                                                                                      Lot de 2 bouchons silicone pour suppression résonateur Clio 4 RS Uniquement compatible avec la cold side AIRTEC Si vous disposez encore de la durite d'origine, consultez nos autres bouchons
                                                                                                                                                      €58.32Price
                                                                                                                                                      Lot de 2 bouchons silicone pour suppression résonateur Clio 4 RSLot de 2 bouchons silicone pour suppression résonateur Clio 4 RS
                                                                                                                                                          Lot de 2 bouchons silicone pour suppression résonateur Clio 4 RS Uniquement compatible avec la cold side AIRTEC Si vous disposez encore de la durite d'origine, consultez nos autres bouchons
                                                                                                                                                          €58.32Price
                                                                                                                                                          Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
                                                                                                                                                              Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
                                                                                                                                                              €41.95Price
                                                                                                                                                              Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
                                                                                                                                                                  Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
                                                                                                                                                                  €41.95Price
                                                                                                                                                                  Kit durites de turbo Forge Motorsport Megane 4 RSForge Motorsport Turbo Hose Kit - Renault Megane 4 RS
                                                                                                                                                                      Secure your boost pressure consistency and eliminate intake charge drops with the high-performance Forge Motorsport Turbo Hose Kit for the Renault Megane 4 RS . This premium set of uprated silicone boost couplers replaces the restrictive factory rubber lines to optimize...
                                                                                                                                                                      €294.76Price
                                                                                                                                                                      Kit durites de turbo Forge Motorsport Megane 4 RSForge Motorsport Turbo Hose Kit - Renault Megane 4 RS
                                                                                                                                                                          Secure your boost pressure consistency and eliminate intake charge drops with the high-performance Forge Motorsport Turbo Hose Kit for the Renault Megane 4 RS . This premium set of uprated silicone boost couplers replaces the restrictive factory rubber lines to optimize...
                                                                                                                                                                          €294.76Price
                                                                                                                                                                          Gicleur Piston 2-4 Clio 2 RS y compris Gr N et x65 CupGicleur Piston 2-4 Clio 2 RS y compris Gr N et x65 Cup
                                                                                                                                                                              Gicleur Piston 2-4 Clio 2 RS y compris Gr N et x65 Cup  
                                                                                                                                                                              €33.55Price
                                                                                                                                                                              Gicleur Piston 2-4 Clio 2 RS y compris Gr N et x65 CupGicleur Piston 2-4 Clio 2 RS y compris Gr N et x65 Cup
                                                                                                                                                                                  Gicleur Piston 2-4 Clio 2 RS y compris Gr N et x65 Cup  
                                                                                                                                                                                  €33.55Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €130.37 Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €130.37 Price
                                                                                                                                                                                  Capteur pression de suralimentation Megane 3 RS
                                                                                                                                                                                      Capteur pression de suralimentation Megane 3 RS Véritable produit d'origine
                                                                                                                                                                                      €130.37Price
                                                                                                                                                                                      Capteur pression de suralimentation Megane 3 RS
                                                                                                                                                                                          Capteur pression de suralimentation Megane 3 RS Véritable produit d'origine
                                                                                                                                                                                          €130.37Price
                                                                                                                                                                                          En Stock
                                                                                                                                                                                          €1.00 Price
                                                                                                                                                                                          En Stock
                                                                                                                                                                                          €1.00 Price
                                                                                                                                                                                          Collier serrage inox (durite) diametre 12-20mm
                                                                                                                                                                                              Collier serrage inox (durite) diametre 12-20mm Vendu à l'unité
                                                                                                                                                                                              €1.00Price
                                                                                                                                                                                              Collier serrage inox (durite) diametre 12-20mm
                                                                                                                                                                                                  Collier serrage inox (durite) diametre 12-20mm Vendu à l'unité
                                                                                                                                                                                                  €1.00Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €133.56 Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €133.56 Price
                                                                                                                                                                                                  Piston équipé indice B (X82.70) Clio 3 RS et X85 Cup
                                                                                                                                                                                                      Piston équipé indice B (X=82.70) Clio 3 RS et X85 Cup Piston d'origine
                                                                                                                                                                                                      €133.56Price
                                                                                                                                                                                                      Piston équipé indice B (X82.70) Clio 3 RS et X85 Cup
                                                                                                                                                                                                          Piston équipé indice B (X=82.70) Clio 3 RS et X85 Cup Piston d'origine
                                                                                                                                                                                                          €133.56Price
                                                                                                                                                                                                          Collection de 3 segments pour piston Twingo RS R1 et R2 160
                                                                                                                                                                                                              Original RENAULT Piston Ring Set for Twingo 2 RS (for 1 piston) Do not compromise the compression and power of your Twingo 2 RS engine. This original RENAULT piston...
                                                                                                                                                                                                              €68.32Price
                                                                                                                                                                                                              Collection de 3 segments pour piston Twingo RS R1 et R2 160
                                                                                                                                                                                                                  Original RENAULT Piston Ring Set for Twingo 2 RS (for 1 piston) Do not compromise the compression and power of your Twingo 2 RS engine. This original RENAULT piston...
                                                                                                                                                                                                                  €68.32Price
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €266.00 Price
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €266.00 Price
                                                                                                                                                                                                                  Wasegate Forge Clio 4 RS
                                                                                                                                                                                                                      Optimize your boost management with the Forge Motorsport Wastegate for Renault Clio 4 RS (reference FMACRTRCT ). This piston-actuated turbo actuator is designed to provide significantly higher pressure stability than the factory unit. Essential for...
                                                                                                                                                                                                                      €266.00Price
                                                                                                                                                                                                                      Wasegate Forge Clio 4 RS
                                                                                                                                                                                                                          Optimize your boost management with the Forge Motorsport Wastegate for Renault Clio 4 RS (reference FMACRTRCT ). This piston-actuated turbo actuator is designed to provide significantly higher pressure stability than the factory unit. Essential for...
                                                                                                                                                                                                                          €266.00Price
                                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                                          €1.10 Price
                                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                                          €1.10 Price
                                                                                                                                                                                                                          Collier serrage inox (durite) diametre 20-32mm
                                                                                                                                                                                                                              Collier serrage inox (durite) diametre 20-32mm Vendu à l'unité
                                                                                                                                                                                                                              €1.10Price
                                                                                                                                                                                                                              Collier serrage inox (durite) diametre 20-32mm
                                                                                                                                                                                                                                  Collier serrage inox (durite) diametre 20-32mm Vendu à l'unité
                                                                                                                                                                                                                                  €1.10Price
                                                                                                                                                                                                                                  Joint de conduit d'air sortie de turbo Clio 4 RS - Megane 4 GT et RS
                                                                                                                                                                                                                                      Ensure absolute air tightness within your forced induction system with the Genuine Renault Turbo Outlet Air Duct Gasket . Specifically calibrated to withstand the high pressures of turbocharged engines, this official O-ring eliminates boost leaks between the turbocharger and...
                                                                                                                                                                                                                                      €15.34Price
                                                                                                                                                                                                                                      Joint de conduit d'air sortie de turbo Clio 4 RS - Megane 4 GT et RS
                                                                                                                                                                                                                                          Ensure absolute air tightness within your forced induction system with the Genuine Renault Turbo Outlet Air Duct Gasket . Specifically calibrated to withstand the high pressures of turbocharged engines, this official O-ring eliminates boost leaks between the turbocharger and...
                                                                                                                                                                                                                                          €15.34Price
                                                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                                                          €220.69 Price
                                                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                                                          €220.69 Price
                                                                                                                                                                                                                                          Conduit air HP entrée boitier Clio 4 RSConduit air HP entrée boitier Clio 4 RS
                                                                                                                                                                                                                                              Conduit air HP entrée boitier Clio 4 RS Permet de remplacer le produit qui s'ouvre de temps en temps sous la pression du Turbo Produit d'origine
                                                                                                                                                                                                                                              €220.69Price
                                                                                                                                                                                                                                              Conduit air HP entrée boitier Clio 4 RSConduit air HP entrée boitier Clio 4 RS
                                                                                                                                                                                                                                                  Conduit air HP entrée boitier Clio 4 RS Permet de remplacer le produit qui s'ouvre de temps en temps sous la pression du Turbo Produit d'origine
                                                                                                                                                                                                                                                  €220.69Price
                                                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                                                  €1.30 Price
                                                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                                                  €1.30 Price
                                                                                                                                                                                                                                                  Collier serrage inox (durite) diametre 25-40mm
                                                                                                                                                                                                                                                      Collier serrage inox (durite) diametre 25-40mm Vendu à l'unité
                                                                                                                                                                                                                                                      €1.30Price
                                                                                                                                                                                                                                                      Collier serrage inox (durite) diametre 25-40mm
                                                                                                                                                                                                                                                          Collier serrage inox (durite) diametre 25-40mm Vendu à l'unité
                                                                                                                                                                                                                                                          €1.30Price