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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: Allumage
  • Categories: Circuit d'eau
  • Categories: Préparation intérieure
  • Categories: Suralimentation (Turbo)
En Stock
€720.00 Price
En Stock
€720.00 Price
Echangeur Airtec Megane 3 RSEchangeur Airtec Megane 3 RS
      Échangeur Airtec spécifique à la Mégane 3 RS. Échangeur de 60 mm se montant en lieu et place sans modifications et équipé d'une tôle permettant de diriger un plus gros flux d'air vers l’échangeur. Disponible en gris
      €720.00Price
      Echangeur Airtec Megane 3 RSEchangeur Airtec Megane 3 RS
          Échangeur Airtec spécifique à la Mégane 3 RS. Échangeur de 60 mm se montant en lieu et place sans modifications et équipé d'une tôle permettant de diriger un plus gros flux d'air vers l’échangeur. Disponible en gris
          €720.00Price
          En Stock
          €211.80 Price
          En Stock
          €211.80 Price
          Pompe à huileRenault Sport Oil Pump - Clio 2/3 RS & Megane 2/3 RS
              Secure your engine block's lubrication with this high-performance oil pump for Renault 2.0L engines. Essential for maintaining constant oil pressure, it is compatible with Clio 2 RS , Clio 3 RS , as well as X65 Cup ,...
              €211.80Price
              Pompe à huileRenault Sport Oil Pump - Clio 2/3 RS & Megane 2/3 RS
                  Secure your engine block's lubrication with this high-performance oil pump for Renault 2.0L engines. Essential for maintaining constant oil pressure, it is compatible with Clio 2 RS , Clio 3 RS , as well as X65 Cup ,...
                  €211.80Price
                  En Stock
                  €70.25 Price
                  En Stock
                  €70.25 Price
                  Blue Crankshaft Half-Bearing Set
                      Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                      €70.25Price
                      Blue Crankshaft Half-Bearing Set
                          Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                          €70.25Price
                          Carter Huile Clio 3 RS - Megane 3 RS - Megane 2 RSOEM Renault Oil Pan - Clio 3 RS, Megane 2 RS, Megane 3 RS
                              Don't gamble with your engine's lubrication. This genuine Renault OEM oil pan is the only component that guarantees a perfect seal and thermal resistance meeting the strict requirements of your Renault Clio 3 RS , Megane 2 RS , or Megane 3 RS . By choosing this certified part, you avoid micro-cracks and warping issues common in...
                              €265.93Price
                              Carter Huile Clio 3 RS - Megane 3 RS - Megane 2 RSOEM Renault Oil Pan - Clio 3 RS, Megane 2 RS, Megane 3 RS
                                  Don't gamble with your engine's lubrication. This genuine Renault OEM oil pan is the only component that guarantees a perfect seal and thermal resistance meeting the strict requirements of your Renault Clio 3 RS , Megane 2 RS , or Megane 3 RS . By choosing this certified part, you avoid micro-cracks and warping issues common in...
                                  €265.93Price
                                  En Stock
                                  €133.31 Price
                                  En Stock
                                  €133.31 Price
                                  Joint de Culasse renforcé CometicJoint de Culasse renforcé Cometic
                                      Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 0.75mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                      €133.31Price
                                      Joint de Culasse renforcé CometicJoint de Culasse renforcé Cometic
                                          Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 0.75mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                          €133.31Price
                                          En Stock
                                          €3.16 Price
                                          En Stock
                                          €3.16 Price
                                          Clip maintien support linguet Twingo R2 195/205
                                              Clip maintien support linguet Twingo R2 195/205 Référence: 7711167614
                                              €3.16Price
                                              Clip maintien support linguet Twingo R2 195/205
                                                  Clip maintien support linguet Twingo R2 195/205 Référence: 7711167614
                                                  €3.16Price
                                                  En Stock
                                                  €116.83 Price
                                                  En Stock
                                                  €116.83 Price
                                                  Jeu de segments pour piston origine Megane 3 RS
                                                      Jeu de segments pour piston origine Megane 3 RS 1 Jeu comprend le necessaire pour 1 piston
                                                      €116.83Price
                                                      Jeu de segments pour piston origine Megane 3 RS
                                                          Jeu de segments pour piston origine Megane 3 RS 1 Jeu comprend le necessaire pour 1 piston
                                                          €116.83Price
                                                          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
                                                                  Durite coudée suralimentation (arrivée turbo) Megane 3 RS
                                                                      Durite coudée suralimentation (arrivée turbo) Megane 3 RS
                                                                      €45.90Price
                                                                      Durite coudée suralimentation (arrivée turbo) Megane 3 RS
                                                                          Durite coudée suralimentation (arrivée turbo) Megane 3 RS
                                                                          €45.90Price
                                                                          En Stock
                                                                          €34.73 €53.42 Regular price -35% off Price
                                                                          En Stock
                                                                          €34.73 €53.42 Regular price -35% off Price
                                                                          Bougie origine
                                                                              The genuine RENAULT Spark Plug , sold individually and an original manufacturer part, is essential for maintaining optimal performance in your Renault Megane 4 RS or Alpine A110 . Ensure perfect ignition and efficient combustion by choosing RENAULT quality.
                                                                              €34.73€53.42Regular price-35% offPrice
                                                                              Bougie origine
                                                                                  The genuine RENAULT Spark Plug , sold individually and an original manufacturer part, is essential for maintaining optimal performance in your Renault Megane 4 RS or Alpine A110 . Ensure perfect ignition and efficient combustion by choosing RENAULT quality.
                                                                                  €34.73€53.42Regular price-35% offPrice
                                                                                  En Stock
                                                                                  €31.01 Price
                                                                                  En Stock
                                                                                  €31.01 Price
                                                                                      Kit colliers pour kit durites d'eau Forge Clio 2 RS
                                                                                      €31.01Price
                                                                                          Kit colliers pour kit durites d'eau Forge Clio 2 RS
                                                                                          €31.01Price
                                                                                          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
                                                                                                  €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
                                                                                                          €5.63 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
                                                                                                                  Tampon inférieur radiateur Clio 3 RS y compris R3 et X85 CupTampon inférieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                                                                                      Tampon inférieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                                                                                      €7.19Price
                                                                                                                      Tampon inférieur radiateur Clio 3 RS y compris R3 et X85 CupTampon inférieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                                                                                          Tampon inférieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                                                                                          €7.19Price
                                                                                                                          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
                                                                                                                                  €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
                                                                                                                                          Tampon supérieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                                                                                                              Tampon supérieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                                                                                                              €7.96Price
                                                                                                                                              Tampon supérieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                                                                                                                  Tampon supérieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                                                                                                                  €7.96Price
                                                                                                                                                  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
                                                                                                                                                          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
                                                                                                                                                                  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
                                                                                                                                                                          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
                                                                                                                                                                                  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
                                                                                                                                                                                          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
                                                                                                                                                                                                  €15.49 Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €15.49 Price
                                                                                                                                                                                                  bague étanchéité bobine crayon
                                                                                                                                                                                                      The Renault ignition coil seal (gasket) is an original part designed to ensure perfect sealing and optimal performance of the ignition system on Renault Twingo 2 RS, Renault Clio 3 RS, Renault Clio R3, Renault Clio 3 X85 Cup, Renault Megane 2 RS, Renault Megane 3 RS, and Renault Megane N4 models.
                                                                                                                                                                                                      €15.49Price
                                                                                                                                                                                                      bague étanchéité bobine crayon
                                                                                                                                                                                                          The Renault ignition coil seal (gasket) is an original part designed to ensure perfect sealing and optimal performance of the ignition system on Renault Twingo 2 RS, Renault Clio 3 RS, Renault Clio R3, Renault Clio 3 X85 Cup, Renault Megane 2 RS, Renault Megane 3 RS, and Renault Megane N4 models.
                                                                                                                                                                                                          €15.49Price
                                                                                                                                                                                                          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
                                                                                                                                                                                                                  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
                                                                                                                                                                                                                          €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
                                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                                  €82.45 Price
                                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                                  €82.45 Price
                                                                                                                                                                                                                                  Durite d'eau sortie de radiateur Twingo RS R1 et R2
                                                                                                                                                                                                                                      Durite d'eau sortie de radiateur Twingo RS R1 et R2 Véritable produit d'origine
                                                                                                                                                                                                                                      €82.45Price
                                                                                                                                                                                                                                      Durite d'eau sortie de radiateur Twingo RS R1 et R2
                                                                                                                                                                                                                                          Durite d'eau sortie de radiateur Twingo RS R1 et R2 Véritable produit d'origine
                                                                                                                                                                                                                                          €82.45Price
                                                                                                                                                                                                                                          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