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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.

Active filters

Câble accélérateur Clio 3 X85 Cup
      Don't let a seized cable compromise your responsiveness on the track. This official Renault Sport throttle cable is specifically designed for the Renault Clio 3 X85 Cup . Genuine manufacturer part (Reference 7711160160). High-resistance design for intensive competition ...
      €52.69Price
      Câble accélérateur Clio 3 X85 Cup
          Don't let a seized cable compromise your responsiveness on the track. This official Renault Sport throttle cable is specifically designed for the Renault Clio 3 X85 Cup . Genuine manufacturer part (Reference 7711160160). High-resistance design for intensive competition ...
          €52.69Price
          En Stock
          €92.35 Price
          En Stock
          €92.35 Price
          Support Pédale Accélérateur Clio 3 X85 Cup
              Support Pédale Accélérateur Clio 3 X85 Cup Référence: 7711160177
              €92.35Price
              Support Pédale Accélérateur Clio 3 X85 Cup
                  Support Pédale Accélérateur Clio 3 X85 Cup Référence: 7711160177
                  €92.35Price
                  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
                          €202.12 Price
                          En Stock
                          €202.12 Price
                          Isolant Tablier Clio 2 RS
                              Genuine Renault Bulkhead Insulator for Clio 2 RS and Clio 2 Gr N. Reduce noise and protect your engine compartment with this high-quality insulator. Don't forget the necessary clips and fasteners for optimal installation (available at the bottom of the page).
                              €202.12Price
                              Isolant Tablier Clio 2 RS
                                  Genuine Renault Bulkhead Insulator for Clio 2 RS and Clio 2 Gr N. Reduce noise and protect your engine compartment with this high-quality insulator. Don't forget the necessary clips and fasteners for optimal installation (available at the bottom of the page).
                                  €202.12Price
                                  En Stock
                                  €139.14 Price
                                  En Stock
                                  €139.14 Price
                                  Piston équipé C (X82.70) Clio 3 RS
                                      The Renault complete piston (index C) is an original part, supplied with pin and pin clips, designed for your Renault Clio 3 RS and Renault Clio 3 X85 Cup . It ensures optimal engine performance and increased reliability.
                                      €139.14Price
                                      Piston équipé C (X82.70) Clio 3 RS
                                          The Renault complete piston (index C) is an original part, supplied with pin and pin clips, designed for your Renault Clio 3 RS and Renault Clio 3 X85 Cup . It ensures optimal engine performance and increased reliability.
                                          €139.14Price
                                          En Stock
                                          €3.48 Price
                                          En Stock
                                          €3.48 Price
                                          Écrou de fixation arrière anti cabrage Clio 2 RS
                                              Écrou de fixation arrière anti cabrage Clio 2 RS
                                              €3.48Price
                                              Écrou de fixation arrière anti cabrage Clio 2 RS
                                                  Écrou de fixation arrière anti cabrage Clio 2 RS
                                                  €3.48Price
                                                  Vis arrière de fixation anti cabrage Clio 2 RS et Gr N
                                                      Vis arrière de fixation anti cabrage Clio 2 RS et Gr N Uniquement compatible pour Clio 2 RS Phase 2 et 3
                                                      €10.67Price
                                                      Vis arrière de fixation anti cabrage Clio 2 RS et Gr N
                                                          Vis arrière de fixation anti cabrage Clio 2 RS et Gr N Uniquement compatible pour Clio 2 RS Phase 2 et 3
                                                          €10.67Price
                                                          En Stock
                                                          €69.56 Price
                                                          En Stock
                                                          €69.56 Price
                                                          Flexible à carburant Té / rampe Clio 3 Cup
                                                              Do not risk a fuel system failure mid-session. The Goodridge Tee to fuel rail hose is crucial for the reliability of your Clio 3 x85 Cup . Keeping a worn or inadequate hose directly exposes your engine to critical fuel starvation or severe leak risks. Permanently secure your injection system with this high-precision...
                                                              €69.56Price
                                                              Flexible à carburant Té / rampe Clio 3 Cup
                                                                  Do not risk a fuel system failure mid-session. The Goodridge Tee to fuel rail hose is crucial for the reliability of your Clio 3 x85 Cup . Keeping a worn or inadequate hose directly exposes your engine to critical fuel starvation or severe leak risks. Permanently secure your injection system with this high-precision...
                                                                  €69.56Price
                                                                  Ecrou de fixation de patte de tirant anti glissement Clio 2 RS et Gr N
                                                                      Ecrou de fixation de patte de tirant anti glissement Clio 2 RS et Gr N
                                                                      €3.36Price
                                                                      Ecrou de fixation de patte de tirant anti glissement Clio 2 RS et Gr N
                                                                          Ecrou de fixation de patte de tirant anti glissement Clio 2 RS et Gr N
                                                                          €3.36Price
                                                                          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
                                                                                  €243.60 Price
                                                                                  En Stock
                                                                                  €243.60 Price
                                                                                  Radiateur d'eau
                                                                                      Optimize your engine's cooling with this high-performance water radiator designed for demanding powerplants. Whether you own a standard Clio 3 RS or a competition version like the Clio R3 or Twingo R2 , this component is...
                                                                                      €243.60Price
                                                                                      Radiateur d'eau
                                                                                          Optimize your engine's cooling with this high-performance water radiator designed for demanding powerplants. Whether you own a standard Clio 3 RS or a competition version like the Clio R3 or Twingo R2 , this component is...
                                                                                          €243.60Price
                                                                                          Kit durites de turbo Forge Motorsport Megane 4 RSForge Motorsport Turbo Hose Kit - Renault Megane 4 RS
                                                                                              Secure your boost pressure consistency and eliminate intake charge drops with the high-performance Forge Motorsport Turbo Hose Kit for the Renault Megane 4 RS . This premium set of uprated silicone boost couplers replaces the restrictive factory rubber lines to optimize...
                                                                                              €294.76Price
                                                                                              Kit durites de turbo Forge Motorsport Megane 4 RSForge Motorsport Turbo Hose Kit - Renault Megane 4 RS
                                                                                                  Secure your boost pressure consistency and eliminate intake charge drops with the high-performance Forge Motorsport Turbo Hose Kit for the Renault Megane 4 RS . This premium set of uprated silicone boost couplers replaces the restrictive factory rubber lines to optimize...
                                                                                                  €294.76Price
                                                                                                  Cale admission porte injecteur Twingo 2 RS y compris R1 et R2 160cv
                                                                                                      Cale admission porte injecteur Twingo 2 RS y compris R1 et R2 160cv Référence: 8200329496
                                                                                                      €194.51Price
                                                                                                      Cale admission porte injecteur Twingo 2 RS y compris R1 et R2 160cv
                                                                                                          Cale admission porte injecteur Twingo 2 RS y compris R1 et R2 160cv Référence: 8200329496
                                                                                                          €194.51Price
                                                                                                          En Stock
                                                                                                          €265.70 Price
                                                                                                          En Stock
                                                                                                          €265.70 Price
                                                                                                          Fuel Gauge/Pump Module Clio 3 RS/R3/Cup - Original
                                                                                                              The original Renault fuel gauge/pump module is an essential part to ensure a reliable and precise fuel supply on your Renault Clio 3 RS , Renault Clio R3 , and Renault Clio 3 X85 Cup . It guarantees accurate fuel level measurement and constant pressure, indispensable for optimal performance. We ship worldwide.
                                                                                                              €265.70Price
                                                                                                              Fuel Gauge/Pump Module Clio 3 RS/R3/Cup - Original
                                                                                                                  The original Renault fuel gauge/pump module is an essential part to ensure a reliable and precise fuel supply on your Renault Clio 3 RS , Renault Clio R3 , and Renault Clio 3 X85 Cup . It guarantees accurate fuel level measurement and constant pressure, indispensable for optimal performance. We ship worldwide.
                                                                                                                  €265.70Price
                                                                                                                  Dump Valve GFB DV+ - Diverter Valve Clio 4 RS - Megane 4 RS et Megane 4 GTGFB DV+ Diverter Valve - Renault Clio 4 RS / Megane 4 GT / Megane 4 RS / Alpine A110
                                                                                                                      Stop losing your turbo boost! The GFB DV+ Dump Valve (Diverter Valve) is the essential upgrade for the reliability and responsiveness of your Renault Sport 1.6T and 1.8T engine (Clio 4 RS, Megane 4 GT, Megane 4 RS, Alpine A110). Retain the factory electronics...
                                                                                                                      €127.86Price
                                                                                                                      Dump Valve GFB DV+ - Diverter Valve Clio 4 RS - Megane 4 RS et Megane 4 GTGFB DV+ Diverter Valve - Renault Clio 4 RS / Megane 4 GT / Megane 4 RS / Alpine A110
                                                                                                                          Stop losing your turbo boost! The GFB DV+ Dump Valve (Diverter Valve) is the essential upgrade for the reliability and responsiveness of your Renault Sport 1.6T and 1.8T engine (Clio 4 RS, Megane 4 GT, Megane 4 RS, Alpine A110). Retain the factory electronics...
                                                                                                                          €127.86Price
                                                                                                                          En Stock
                                                                                                                          €27.47 Price
                                                                                                                          En Stock
                                                                                                                          €27.47 Price
                                                                                                                          Joint de turbo sur collecteur Megane 2 RS Megane 3 RS
                                                                                                                              Optimize your F4RT engine's sealing with this genuine RENAULT turbocharger to manifold gasket . Specifically designed for the Renault Megane 2 RS and Megane 3 RS , it is the essential component to maintain nominal boost pressure. Do not risk an exhaust leak that would degrade your performance and the...
                                                                                                                              €27.47Price
                                                                                                                              Joint de turbo sur collecteur Megane 2 RS Megane 3 RS
                                                                                                                                  Optimize your F4RT engine's sealing with this genuine RENAULT turbocharger to manifold gasket . Specifically designed for the Renault Megane 2 RS and Megane 3 RS , it is the essential component to maintain nominal boost pressure. Do not risk an exhaust leak that would degrade your performance and the...
                                                                                                                                  €27.47Price
                                                                                                                                  En Stock
                                                                                                                                  €12.78 Price
                                                                                                                                  En Stock
                                                                                                                                  €12.78 Price
                                                                                                                                  Tuyau essence vapeur canister Ø8 Megane N4Tuyau essence vapeur canister Ø8 Megane N4
                                                                                                                                      Tuyau essence vapeur canister Ø8 Megane N4 Référence: 7711167251
                                                                                                                                      €12.78Price
                                                                                                                                      Tuyau essence vapeur canister Ø8 Megane N4Tuyau essence vapeur canister Ø8 Megane N4
                                                                                                                                          Tuyau essence vapeur canister Ø8 Megane N4 Référence: 7711167251
                                                                                                                                          €12.78Price
                                                                                                                                          Tuyau carburant entre réservoir et coupling Goodridge Megane N4
                                                                                                                                              Tuyau carburant entre réservoir et coupling Goodridge Megane N4 Référence: 7711167089
                                                                                                                                              €173.57Price
                                                                                                                                              Tuyau carburant entre réservoir et coupling Goodridge Megane N4
                                                                                                                                                  Tuyau carburant entre réservoir et coupling Goodridge Megane N4 Référence: 7711167089
                                                                                                                                                  €173.57Price
                                                                                                                                                  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
                                                                                                                                                          Entretoise support capteur (pression huile) Clio 3 X85 Cup
                                                                                                                                                              Entretoise support capteur (pression huile) Clio 3 X85 Cup Référence: 7711160253
                                                                                                                                                              €34.36Price
                                                                                                                                                              Entretoise support capteur (pression huile) Clio 3 X85 Cup
                                                                                                                                                                  Entretoise support capteur (pression huile) Clio 3 X85 Cup Référence: 7711160253
                                                                                                                                                                  €34.36Price
                                                                                                                                                                  En Stock
                                                                                                                                                                  €45.11 Price
                                                                                                                                                                  En Stock
                                                                                                                                                                  €45.11 Price
                                                                                                                                                                  Genuine Breather Steam Pipe - Renault Megane 3 RS
                                                                                                                                                                      Ensure the reliability of your engine's degassing circuit with this breather steam pipe for Renault Megane 3 RS . This genuine part is essential for the proper functioning of the vapor recovery system, guaranteeing the longevity of your 2.0 Turbo F4Rt engine block. ...
                                                                                                                                                                      €45.11Price
                                                                                                                                                                      Genuine Breather Steam Pipe - Renault Megane 3 RS
                                                                                                                                                                          Ensure the reliability of your engine's degassing circuit with this breather steam pipe for Renault Megane 3 RS . This genuine part is essential for the proper functioning of the vapor recovery system, guaranteeing the longevity of your 2.0 Turbo F4Rt engine block. ...
                                                                                                                                                                          €45.11Price
                                                                                                                                                                          Plot élastique supérieur droit radiateur Twingo R2
                                                                                                                                                                              Plot élastique supérieur droit radiateur Twingo R2 Référence: 7711162838
                                                                                                                                                                              €2.58Price
                                                                                                                                                                              Plot élastique supérieur droit radiateur Twingo R2
                                                                                                                                                                                  Plot élastique supérieur droit radiateur Twingo R2 Référence: 7711162838
                                                                                                                                                                                  €2.58Price
                                                                                                                                                                                  Oil Filter - Renault Clio 4 RS, Megane 4 RS, Alpine A110Oil Filter - Renault Clio 4 RS, Megane 4 RS, Alpine A110
                                                                                                                                                                                      Preserve your engine's integrity with this genuine Renault oil filter . Specifically engineered for the high-performance engines found in the Renault Clio 4 RS (1.6 Turbo), Renault Megane 4 RS , and Alpine A110 (1.8 Turbo), this filter guarantees optimal removal of impurities. ...
                                                                                                                                                                                      €11.34Price
                                                                                                                                                                                      Oil Filter - Renault Clio 4 RS, Megane 4 RS, Alpine A110Oil Filter - Renault Clio 4 RS, Megane 4 RS, Alpine A110
                                                                                                                                                                                          Preserve your engine's integrity with this genuine Renault oil filter . Specifically engineered for the high-performance engines found in the Renault Clio 4 RS (1.6 Turbo), Renault Megane 4 RS , and Alpine A110 (1.8 Turbo), this filter guarantees optimal removal of impurities. ...
                                                                                                                                                                                          €11.34Price
                                                                                                                                                                                          En Stock
                                                                                                                                                                                          €130.37 Price
                                                                                                                                                                                          En Stock
                                                                                                                                                                                          €130.37 Price
                                                                                                                                                                                          Capteur pression de suralimentation Megane 3 RS
                                                                                                                                                                                              Capteur pression de suralimentation Megane 3 RS Véritable produit d'origine
                                                                                                                                                                                              €130.37Price
                                                                                                                                                                                              Capteur pression de suralimentation Megane 3 RS
                                                                                                                                                                                                  Capteur pression de suralimentation Megane 3 RS Véritable produit d'origine
                                                                                                                                                                                                  €130.37Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €9.60 Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €9.60 Price
                                                                                                                                                                                                  Vis M12 anti cabrage
                                                                                                                                                                                                      Vis M12 Vis utilisée pour la fixation de la partie av de l'anti cabrage inférieur sur la Clio 3 X85 Cup et utilisée pour la fixation de la partie arriere de l'anti cabrage inferieur sur Twingo 2 RS et Wind Référence: 7703002363-7703002951
                                                                                                                                                                                                      €9.60Price
                                                                                                                                                                                                      Vis M12 anti cabrage
                                                                                                                                                                                                          Vis M12 Vis utilisée pour la fixation de la partie av de l'anti cabrage inférieur sur la Clio 3 X85 Cup et utilisée pour la fixation de la partie arriere de l'anti cabrage inferieur sur Twingo 2 RS et Wind Référence: 7703002363-7703002951
                                                                                                                                                                                                          €9.60Price
                                                                                                                                                                                                          Entretoise rotule pour biellette de reprise de couple Clio 3 X85 Cup
                                                                                                                                                                                                              Entretoise rotule pour biellette de reprise de couple Clio 3 X85 Cup Référence: 7711160059
                                                                                                                                                                                                              €14.64Price
                                                                                                                                                                                                              Entretoise rotule pour biellette de reprise de couple Clio 3 X85 Cup
                                                                                                                                                                                                                  Entretoise rotule pour biellette de reprise de couple Clio 3 X85 Cup Référence: 7711160059
                                                                                                                                                                                                                  €14.64Price
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €200.27 Price
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €200.27 Price
                                                                                                                                                                                                                  Biellette de reprise de couple Clio 3 X85 Cup
                                                                                                                                                                                                                      Biellette de reprise de couple Clio 3 X85 Cup Référence: 7711160020
                                                                                                                                                                                                                      €200.27Price
                                                                                                                                                                                                                      Biellette de reprise de couple Clio 3 X85 Cup
                                                                                                                                                                                                                          Biellette de reprise de couple Clio 3 X85 Cup Référence: 7711160020
                                                                                                                                                                                                                          €200.27Price