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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: Entretien
  • Categories: Kit Allègement
  • Categories: Suralimentation (Turbo)
Motul 300V Competition 10W40 2L Engine Oil - Sports Cars
      Motul 300V Competition Engine Oil 10W40 2L - Performance and Protection for Classic and Modern Sports Cars Don't let the age of your sports car impact its performance. engine oil is specially formulated to offer optimal protection and increased performance, suitable for demanding classic and modern engines. 2-liter can. <p...
      €39.99Price
      Motul 300V Competition 10W40 2L Engine Oil - Sports Cars
          Motul 300V Competition Engine Oil 10W40 2L - Performance and Protection for Classic and Modern Sports Cars Don't let the age of your sports car impact its performance. engine oil is specially formulated to offer optimal protection and increased performance, suitable for demanding classic and modern engines. 2-liter can. <p...
          €39.99Price
          Entretoise galet distribution culasse Clio 2 RS y compris Gr N et X65 CupEntretoise galet distribution culasse Clio 2 RS y compris Gr N et X65 Cup
              Entretoise galet distribution culasse Clio Gr N 8200607654
              €12.06Price
              Entretoise galet distribution culasse Clio 2 RS y compris Gr N et X65 CupEntretoise galet distribution culasse Clio 2 RS y compris Gr N et X65 Cup
                  Entretoise galet distribution culasse Clio Gr N 8200607654
                  €12.06Price
                  En Stock
                  €77.92 €111.31 Regular price -30% off Price
                  En Stock
                  €77.92 €111.31 Regular price -30% off Price
                  Kit joints spy et vis arbres à cames
                      Kit joints spy et vis arbres à cames
                      €77.92€111.31Regular price-30% offPrice
                      Kit joints spy et vis arbres à cames
                          Kit joints spy et vis arbres à cames
                          €77.92€111.31Regular price-30% offPrice
                          Renault Camshaft Dephaser Seal – Clio 2/3 RS & Mégane 3 RSRenault Camshaft Dephaser Seal – Clio 2/3 RS & Mégane 3 RS
                              An aged or damaged seal around the camshaft timing solenoid can lead to oil leaks and additional engine maintenance. The Renault camshaft dephaser solenoid oil seal (reference 7700106385) is designed to provide sealing at the solenoid mounting point on compatible variable...
                              €16.84Price
                              Renault Camshaft Dephaser Seal – Clio 2/3 RS & Mégane 3 RSRenault Camshaft Dephaser Seal – Clio 2/3 RS & Mégane 3 RS
                                  An aged or damaged seal around the camshaft timing solenoid can lead to oil leaks and additional engine maintenance. The Renault camshaft dephaser solenoid oil seal (reference 7700106385) is designed to provide sealing at the solenoid mounting point on compatible variable...
                                  €16.84Price
                                  ELF SXR 5w40 Motor Oil (2L) - Renault, Sport & PremiumELF SXR 5w40 Motor Oil (2L) - Renault, Sport & Premium
                                      Preserve the health of your high-output engine block with the premium ELF Evolution 900 SXR 5w40 Motor Oil in a convenient 2-Litre bottle . This factory-grade synthetic technology lubricant is engineered to provide maximum anti-wear protection and optimal lubrication under...
                                      €20.15Price
                                      ELF SXR 5w40 Motor Oil (2L) - Renault, Sport & PremiumELF SXR 5w40 Motor Oil (2L) - Renault, Sport & Premium
                                          Preserve the health of your high-output engine block with the premium ELF Evolution 900 SXR 5w40 Motor Oil in a convenient 2-Litre bottle . This factory-grade synthetic technology lubricant is engineered to provide maximum anti-wear protection and optimal lubrication under...
                                          €20.15Price
                                          En Stock
                                          €20.80 Price
                                          En Stock
                                          €20.80 Price
                                          Exhaust Manifold Gasket | Renault Twingo 2 RS / R2
                                              Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
                                              €20.80Price
                                              Exhaust Manifold Gasket | Renault Twingo 2 RS / R2
                                                  Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
                                                  €20.80Price
                                                  Joint de vidangeDrain Plug Seal Clio 4 RS / Mégane RS / Alpine A110
                                                      Renault Sport and Alpine Engine Drain Plug Seal The engine drain plug seal , reference 1102601M02 , is a sealing component used at the engine oil drain...
                                                      €2.92Price
                                                      Joint de vidangeDrain Plug Seal Clio 4 RS / Mégane RS / Alpine A110
                                                          Renault Sport and Alpine Engine Drain Plug Seal The engine drain plug seal , reference 1102601M02 , is a sealing component used at the engine oil drain...
                                                          €2.92Price
                                                          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
                                                                  €30.64 Price
                                                                  En Stock
                                                                  €30.64 Price
                                                                  Joint tournant (joint spy vilebrequin coté volant moteur)
                                                                      The original Renault flywheel side oil seal is an essential part to ensure engine sealing for your Renault Clio 2 RS, Gr N, X65 Cup, Clio 3 RS, R3, X85 Cup, Mégane 2 RS, and Mégane 3 RS . Prevent oil leaks and maintain your vehicle's performance with this authentic replacement part.
                                                                      €30.64Price
                                                                      Joint tournant (joint spy vilebrequin coté volant moteur)
                                                                          The original Renault flywheel side oil seal is an essential part to ensure engine sealing for your Renault Clio 2 RS, Gr N, X65 Cup, Clio 3 RS, R3, X85 Cup, Mégane 2 RS, and Mégane 3 RS . Prevent oil leaks and maintain your vehicle's performance with this authentic replacement part.
                                                                          €30.64Price
                                                                          En Stock
                                                                          €129.34 Price
                                                                          En Stock
                                                                          €129.34 Price
                                                                          Carter de protection Courroie de distribution Clio RS
                                                                              Pièce empêchant le passage de la courroie d'accessoires dans la distribution Compatible avec Clio 2 RS, Clio 3 RS La mise en place sur Clio 2 nécessite une legere découpe du carter en plastique  Fourni sans les vis, veuillez consulter les produits associés en bas de page
                                                                              €129.34Price
                                                                              Carter de protection Courroie de distribution Clio RS
                                                                                  Pièce empêchant le passage de la courroie d'accessoires dans la distribution Compatible avec Clio 2 RS, Clio 3 RS La mise en place sur Clio 2 nécessite une legere découpe du carter en plastique  Fourni sans les vis, veuillez consulter les produits associés en bas de page
                                                                                  €129.34Price
                                                                                  Joint carter inférieur huile moteur Twingo RS y compris R1 et R2Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                                      Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                                      €95.21Price
                                                                                      Joint carter inférieur huile moteur Twingo RS y compris R1 et R2Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                                          Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                                          €95.21Price
                                                                                          Collection Entrainement pompe à huile Clio 2 RS, Gr N et X65Cup
                                                                                              Collection Entrainement pompe à huile Clio 2 RS, Gr N et X65Cup
                                                                                              €54.25Price
                                                                                              Collection Entrainement pompe à huile Clio 2 RS, Gr N et X65Cup
                                                                                                  Collection Entrainement pompe à huile Clio 2 RS, Gr N et X65Cup
                                                                                                  €54.25Price
                                                                                                  Dump Valve Ouverte Forge Clio 4 RSDump Valve Ouverte Forge Clio 4 RS
                                                                                                      The Forge Motorsport open dump valve , reference FMDVC200A , is designed for the Renault Clio IV RS 1.6 Turbo 200/220 . This atmospheric blow-off valve replaces the standard setup and releases excess boost pressure externally when the throttle is lifted. The kit is specifically developed for the Clio 4 RS and includes...
                                                                                                      €191.53Price
                                                                                                      Dump Valve Ouverte Forge Clio 4 RSDump Valve Ouverte Forge Clio 4 RS
                                                                                                          The Forge Motorsport open dump valve , reference FMDVC200A , is designed for the Renault Clio IV RS 1.6 Turbo 200/220 . This atmospheric blow-off valve replaces the standard setup and releases excess boost pressure externally when the throttle is lifted. The kit is specifically developed for the Clio 4 RS and includes...
                                                                                                          €191.53Price
                                                                                                          Kit Joint Spy Arbres à Cames + Vis de Poulie Clio 2 RS
                                                                                                              Kit Joint Spy Arbres à Cames + Vis de Poulie Kit indispensable pour proceder au changement de la distribution sur Clio 2 RS
                                                                                                              €54.58Price
                                                                                                              Kit Joint Spy Arbres à Cames + Vis de Poulie Clio 2 RS
                                                                                                                  Kit Joint Spy Arbres à Cames + Vis de Poulie Kit indispensable pour proceder au changement de la distribution sur Clio 2 RS
                                                                                                                  €54.58Price
                                                                                                                  En Stock
                                                                                                                  €150.77 Price
                                                                                                                  En Stock
                                                                                                                  €150.77 Price
                                                                                                                  Bride de turbo Megane N4
                                                                                                                      Official Renault Megane N4 Rally Turbo Flange (Ref: 7711167131) : Original part, guaranteeing performance and reliability for your Renault Megane 3 RS prepared for competition. Don't let an unsuitable flange compromise your turbo's potential. Discover related products, including the O-ring, at the bottom of this page.
                                                                                                                      €150.77Price
                                                                                                                      Bride de turbo Megane N4
                                                                                                                          Official Renault Megane N4 Rally Turbo Flange (Ref: 7711167131) : Original part, guaranteeing performance and reliability for your Renault Megane 3 RS prepared for competition. Don't let an unsuitable flange compromise your turbo's potential. Discover related products, including the O-ring, at the bottom of this page.
                                                                                                                          €150.77Price
                                                                                                                          En Stock
                                                                                                                          €90.50 €120.66 Regular price -25% off Price
                                                                                                                          En Stock
                                                                                                                          €90.50 €120.66 Regular price -25% off Price
                                                                                                                          Huile moteur HTX 3823 0W20 4LHuile moteur HTX 3823 0W20 4L
                                                                                                                              Huile moteur HTX 3823 0W20 4L Référence: 7711167580
                                                                                                                              €90.50€120.66Regular price-25% offPrice
                                                                                                                              Huile moteur HTX 3823 0W20 4LHuile moteur HTX 3823 0W20 4L
                                                                                                                                  Huile moteur HTX 3823 0W20 4L Référence: 7711167580
                                                                                                                                  €90.50€120.66Regular price-25% offPrice
                                                                                                                                  Fixations Forge Capteur Sur RadiateurFORGE MOTORSPORT FMRCLMP Sensor Securing Kit - Megane 2 RS
                                                                                                                                      Secure the sensors of your Megane 2 RS with the FORGE MOTORSPORT FMRCLMP kit. Composed of 2 reinforcements, it ensures optimal support for the depression hose and pressure sensor. Avoid performance losses and reliability issues.
                                                                                                                                      €36.80Price
                                                                                                                                      Fixations Forge Capteur Sur RadiateurFORGE MOTORSPORT FMRCLMP Sensor Securing Kit - Megane 2 RS
                                                                                                                                          Secure the sensors of your Megane 2 RS with the FORGE MOTORSPORT FMRCLMP kit. Composed of 2 reinforcements, it ensures optimal support for the depression hose and pressure sensor. Avoid performance losses and reliability issues.
                                                                                                                                          €36.80Price
                                                                                                                                          Motul 300V Competition 5W40 2L Engine Oil - RS, Audi, VW, Porsche, Mercedes (Racing)
                                                                                                                                              Motul 300V Competition Engine Oil 5W40 2L - Ultimate Performance for Racing Don't let your competition vehicle's performance be compromised. engine oil is the ultimate choice for maximum protection and unmatched track performance. Specifically developed formula for extreme racing demands. 2-liter can. Also discover our...
                                                                                                                                              €39.99Price
                                                                                                                                              Motul 300V Competition 5W40 2L Engine Oil - RS, Audi, VW, Porsche, Mercedes (Racing)
                                                                                                                                                  Motul 300V Competition Engine Oil 5W40 2L - Ultimate Performance for Racing Don't let your competition vehicle's performance be compromised. engine oil is the ultimate choice for maximum protection and unmatched track performance. Specifically developed formula for extreme racing demands. 2-liter can. Also discover our...
                                                                                                                                                  €39.99Price
                                                                                                                                                  Durite Forge Admission Megane 2 RSForge Silicone Intake Hose Megane 2 RS
                                                                                                                                                      Forge Motorsport Silicone Intake Hose for Renault Megane 2 RS Optimize the airflow to your Renault Megane 2 RS engine with this high-quality silicone intake hose from Forge Motorsport (ref: FMRMBHS). Available in several colors. Connects to the throttle body. Discover associated products at the bottom of the page.
                                                                                                                                                      €44.99Price
                                                                                                                                                      Durite Forge Admission Megane 2 RSForge Silicone Intake Hose Megane 2 RS
                                                                                                                                                          Forge Motorsport Silicone Intake Hose for Renault Megane 2 RS Optimize the airflow to your Renault Megane 2 RS engine with this high-quality silicone intake hose from Forge Motorsport (ref: FMRMBHS). Available in several colors. Connects to the throttle body. Discover associated products at the bottom of the page.
                                                                                                                                                          €44.99Price
                                                                                                                                                          En Stock
                                                                                                                                                          €43.02 Price
                                                                                                                                                          En Stock
                                                                                                                                                          €43.02 Price
                                                                                                                                                          Joint Spy Vilebrequin coté distribution
                                                                                                                                                              The original Renault crankshaft oil seal, timing side is an essential part to ensure crankshaft sealing in the engines of your Renault Clio 2 RS , Clio 2 GR N , Clio 2 X65 Cup , Clio 3 RS , Clio R3 , Clio 3 X85 Cup , Mégane 2 RS , Mégane 3 RS , and...
                                                                                                                                                              €43.02Price
                                                                                                                                                              Joint Spy Vilebrequin coté distribution
                                                                                                                                                                  The original Renault crankshaft oil seal, timing side is an essential part to ensure crankshaft sealing in the engines of your Renault Clio 2 RS , Clio 2 GR N , Clio 2 X65 Cup , Clio 3 RS , Clio R3 , Clio 3 X85 Cup , Mégane 2 RS , Mégane 3 RS , and...
                                                                                                                                                                  €43.02Price
                                                                                                                                                                  En Stock
                                                                                                                                                                  €12.00 Price
                                                                                                                                                                  En Stock
                                                                                                                                                                  €12.00 Price
                                                                                                                                                                  Bidon de 2 L ELF 700 ST 10w40Bidon de 2 L ELF 700 ST 10w40
                                                                                                                                                                      Bidon de 2L de ELF 700 ST 10W40 Huile Préconisé par Renault l'entretien de la gamme RS comprenant Clio 16S et Williams, Twingo RS, Clio RS, Megane RS..
                                                                                                                                                                      €12.00Price
                                                                                                                                                                      Bidon de 2 L ELF 700 ST 10w40Bidon de 2 L ELF 700 ST 10w40
                                                                                                                                                                          Bidon de 2L de ELF 700 ST 10W40 Huile Préconisé par Renault l'entretien de la gamme RS comprenant Clio 16S et Williams, Twingo RS, Clio RS, Megane RS..
                                                                                                                                                                          €12.00Price
                                                                                                                                                                          Joint répartiteur admission ( plenum ) Twingo 2 RS, R1 et R2
                                                                                                                                                                              Joint répartiteur admission Twingo RS R1 et R2
                                                                                                                                                                              €26.36Price
                                                                                                                                                                              Joint répartiteur admission ( plenum ) Twingo 2 RS, R1 et R2
                                                                                                                                                                                  Joint répartiteur admission Twingo RS R1 et R2
                                                                                                                                                                                  €26.36Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €54.41 Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €54.41 Price
                                                                                                                                                                                  Cache bouchons arbres à cames moteur F4R
                                                                                                                                                                                      Cache bouchons arbres à cames moteur F4R Kit de 2 plaques de fermeture moteur 7711155481
                                                                                                                                                                                      €54.41Price
                                                                                                                                                                                      Cache bouchons arbres à cames moteur F4R
                                                                                                                                                                                          Cache bouchons arbres à cames moteur F4R Kit de 2 plaques de fermeture moteur 7711155481
                                                                                                                                                                                          €54.41Price
                                                                                                                                                                                          En Stock
                                                                                                                                                                                          €112.69 Price
                                                                                                                                                                                          En Stock
                                                                                                                                                                                          €112.69 Price
                                                                                                                                                                                          Vis de Culasse (x10)
                                                                                                                                                                                              Ensemble de vis de culasse pour Clio 3 RS, Megane 2 RS, Megane 3 RS, Clio 2 RS et Megane 2 RS Véritable produit d'origine
                                                                                                                                                                                              €112.69Price
                                                                                                                                                                                              Vis de Culasse (x10)
                                                                                                                                                                                                  Ensemble de vis de culasse pour Clio 3 RS, Megane 2 RS, Megane 3 RS, Clio 2 RS et Megane 2 RS Véritable produit d'origine
                                                                                                                                                                                                  €112.69Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €99.36 Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €99.36 Price
                                                                                                                                                                                                  Coussinets bielle ( X48 ) Clio 2 RS Mégane 2 RSCoussinets bielle ( X48 ) Clio 2 RS Mégane 2 RS
                                                                                                                                                                                                      Coussinets bielle ( X=48 ) Le prix est pour 8 Produit remplacé, vous trouverez le produit de remplacement ci dessous ⬇️
                                                                                                                                                                                                      €99.36Price
                                                                                                                                                                                                      Coussinets bielle ( X48 ) Clio 2 RS Mégane 2 RSCoussinets bielle ( X48 ) Clio 2 RS Mégane 2 RS
                                                                                                                                                                                                          Coussinets bielle ( X=48 ) Le prix est pour 8 Produit remplacé, vous trouverez le produit de remplacement ci dessous ⬇️
                                                                                                                                                                                                          €99.36Price
                                                                                                                                                                                                          High-tensile steel replacement tuning preload spring for Forge Motorsport dump valves.
                                                                                                                                                                                                              Prevent boost pressure leaks and excessive throttle response lag on your turbocharged engine block. This premium Forge Dump Valve Preload Spring features an uprated mechanical rating designed specifically to maintain the internal piston seal of your bypass valve under high...
                                                                                                                                                                                                              €10.93Price
                                                                                                                                                                                                              High-tensile steel replacement tuning preload spring for Forge Motorsport dump valves.
                                                                                                                                                                                                                  Prevent boost pressure leaks and excessive throttle response lag on your turbocharged engine block. This premium Forge Dump Valve Preload Spring features an uprated mechanical rating designed specifically to maintain the internal piston seal of your bypass valve under high...
                                                                                                                                                                                                                  €10.93Price
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €22.74 Price
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €22.74 Price
                                                                                                                                                                                                                  Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                                                                                                                                                                                                                      Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                                                                                                                                                                                                                      €22.74Price
                                                                                                                                                                                                                      Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                                                                                                                                                                                                                          Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                                                                                                                                                                                                                          €22.74Price
                                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                                          €198.25 Price
                                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                                          €198.25 Price
                                                                                                                                                                                                                          Kit Joint Refection moteur Origine Clio 3 RS
                                                                                                                                                                                                                              Ensemble de joints nécéssaire au bon remontage du moteur de Clio 3 RS Véritable produit d'origine
                                                                                                                                                                                                                              €198.25Price
                                                                                                                                                                                                                              Kit Joint Refection moteur Origine Clio 3 RS
                                                                                                                                                                                                                                  Ensemble de joints nécéssaire au bon remontage du moteur de Clio 3 RS Véritable produit d'origine
                                                                                                                                                                                                                                  €198.25Price
                                                                                                                                                                                                                                  Durite Forge Induction Megane 2 RSDurite Forge Induction Megane 2 RS
                                                                                                                                                                                                                                      Durite Forge Silicone. Se monte en lieu et place Plusieurs Coloris Disponibles
                                                                                                                                                                                                                                      €140.75Price
                                                                                                                                                                                                                                      Durite Forge Induction Megane 2 RSDurite Forge Induction Megane 2 RS
                                                                                                                                                                                                                                          Durite Forge Silicone. Se monte en lieu et place Plusieurs Coloris Disponibles
                                                                                                                                                                                                                                          €140.75Price