Pensez à sélectionner votre vehicule pour limiter les resultats de recherche

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

  • Categories: Alimentation
  • Categories: Allumage
  • Categories: Kit Allègement
  • Categories: Suralimentation (Turbo)
En Stock
€56.11 Price
En Stock
€56.11 Price
Électrovanne pilotée Megane 2 RSTurbo Boost Solenoid Valve Mégane 2 RS
      Turbo Boost Control Solenoid Valve – Renault Mégane 2 RS The turbo boost control solenoid valve, reference 8200702990 , is an engine management component designed to regulate the turbocharger...
      €56.11Price
      Électrovanne pilotée Megane 2 RSTurbo Boost Solenoid Valve Mégane 2 RS
          Turbo Boost Control Solenoid Valve – Renault Mégane 2 RS The turbo boost control solenoid valve, reference 8200702990 , is an engine management component designed to regulate the turbocharger...
          €56.11Price
          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
                  En Stock
                  €50.21 €83.68 Regular price -40% off Price
                  En Stock
                  €50.21 €83.68 Regular price -40% off Price
                  Bobine D'allumage
                      Optimize your engine's combustion cycle with this genuine Renault ignition coil . Sold individually, it is the essential choice for Renault Megane 2 RS , Clio 3 RS , Megane 3 RS , and Twingo 2 RS owners looking to maintain optimal ignition performance. Certified...
                      €50.21€83.68Regular price-40% offPrice
                      Bobine D'allumage
                          Optimize your engine's combustion cycle with this genuine Renault ignition coil . Sold individually, it is the essential choice for Renault Megane 2 RS , Clio 3 RS , Megane 3 RS , and Twingo 2 RS owners looking to maintain optimal ignition performance. Certified...
                          €50.21€83.68Regular price-40% offPrice
                          En Stock
                          €66.99 Price
                          En Stock
                          €66.99 Price
                          Injecteur Clio 3 RS et X85 Cup
                              The original Renault injector is an essential part to ensure precise fuel injection in the engine of your Renault Clio 3 RS and Renault Clio 3 X85 Cup . It ensures optimal combustion and reliable engine performance.
                              €66.99Price
                              Injecteur Clio 3 RS et X85 Cup
                                  The original Renault injector is an essential part to ensure precise fuel injection in the engine of your Renault Clio 3 RS and Renault Clio 3 X85 Cup . It ensures optimal combustion and reliable engine performance.
                                  €66.99Price
                                  En Stock
                                  €345.64 Price
                                  En Stock
                                  €345.64 Price
                                  Conduit d'eau refroidissement turbo Megane 2 RSConduit d'eau refroidissement turbo Megane 2 RS
                                      Conduite d'eau refroidissement Turbo pour Megane 2 RS
                                      €345.64Price
                                      Conduit d'eau refroidissement turbo Megane 2 RSConduit d'eau refroidissement turbo Megane 2 RS
                                          Conduite d'eau refroidissement Turbo pour Megane 2 RS
                                          €345.64Price
                                          En Stock
                                          €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
                                                  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
                                                                  Renault Clio 2 RS Mechanical Throttle Potentiometer (Original Equivalent)Renault Clio 2 RS Mechanical Throttle Potentiometer (Original Equivalent)
                                                                      Mechanical throttle potentiometer, identical to the original, compatible with Renault Clio 2 RS, Clio 2 Rally, Clio 2 Gr N, and Clio 2 X65 Cup. Optimal performance and precision for your vehicle.
                                                                      €67.50Price
                                                                      Renault Clio 2 RS Mechanical Throttle Potentiometer (Original Equivalent)Renault Clio 2 RS Mechanical Throttle Potentiometer (Original Equivalent)
                                                                          Mechanical throttle potentiometer, identical to the original, compatible with Renault Clio 2 RS, Clio 2 Rally, Clio 2 Gr N, and Clio 2 X65 Cup. Optimal performance and precision for your vehicle.
                                                                          €67.50Price
                                                                          En Stock
                                                                          €402.96 Price
                                                                          En Stock
                                                                          €402.96 Price
                                                                          Convergent boitier filtre assemblé Twingo R2 195cvConvergent boitier filtre assemblé Twingo R2 195cv
                                                                              Convergent boitier filtre assemblé Twingo R2 195cv
                                                                              €402.96Price
                                                                              Convergent boitier filtre assemblé Twingo R2 195cvConvergent boitier filtre assemblé Twingo R2 195cv
                                                                                  Convergent boitier filtre assemblé Twingo R2 195cv
                                                                                  €402.96Price
                                                                                  En Stock
                                                                                  €486.55 Price
                                                                                  En Stock
                                                                                  €486.55 Price
                                                                                  Collecteur admission Clio 2 X65 Cup et Gr N
                                                                                      Collecteur admission Clio 2 X65 Cup et Gr N Prévu pour papillon mécanique
                                                                                      €486.55Price
                                                                                      Collecteur admission Clio 2 X65 Cup et Gr N
                                                                                          Collecteur admission Clio 2 X65 Cup et Gr N Prévu pour papillon mécanique
                                                                                          €486.55Price
                                                                                          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
                                                                                                  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
                                                                                                          €24.00 €30.00 Regular price -20% off Price
                                                                                                          En Stock
                                                                                                          €24.00 €30.00 Regular price -20% off Price
                                                                                                          Jeu de Bougies Renault Clio Williams
                                                                                                              Jeu de Bougies Renault Clio Williams Véritable produit d'origine
                                                                                                              €24.00€30.00Regular price-20% offPrice
                                                                                                              Jeu de Bougies Renault Clio Williams
                                                                                                                  Jeu de Bougies Renault Clio Williams Véritable produit d'origine
                                                                                                                  €24.00€30.00Regular price-20% offPrice
                                                                                                                  En Stock
                                                                                                                  €220.69 Price
                                                                                                                  En Stock
                                                                                                                  €220.69 Price
                                                                                                                  Conduit air HP entrée boitier Clio 4 RSConduit air HP entrée boitier Clio 4 RS
                                                                                                                      Conduit air HP entrée boitier Clio 4 RS Permet de remplacer le produit qui s'ouvre de temps en temps sous la pression du Turbo Produit d'origine
                                                                                                                      €220.69Price
                                                                                                                      Conduit air HP entrée boitier Clio 4 RSConduit air HP entrée boitier Clio 4 RS
                                                                                                                          Conduit air HP entrée boitier Clio 4 RS Permet de remplacer le produit qui s'ouvre de temps en temps sous la pression du Turbo Produit d'origine
                                                                                                                          €220.69Price
                                                                                                                          En Stock
                                                                                                                          €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
                                                                                                                                  Joint cuivre de bouchon de rampe Twingo R1 et R2 et Clio R3
                                                                                                                                      Joint cuivre de bouchon de rampe Twingo R1 et R2 et Clio R3 Référence: 7903062105
                                                                                                                                      €4.16Price
                                                                                                                                      Joint cuivre de bouchon de rampe Twingo R1 et R2 et Clio R3
                                                                                                                                          Joint cuivre de bouchon de rampe Twingo R1 et R2 et Clio R3 Référence: 7903062105
                                                                                                                                          €4.16Price
                                                                                                                                          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
                                                                                                                                                  €1.00 Price
                                                                                                                                                  En Stock
                                                                                                                                                  €1.00 Price
                                                                                                                                                  Collier serrage inox (durite) diametre 12-20mm
                                                                                                                                                      Collier serrage inox (durite) diametre 12-20mm Vendu à l'unité
                                                                                                                                                      €1.00Price
                                                                                                                                                      Collier serrage inox (durite) diametre 12-20mm
                                                                                                                                                          Collier serrage inox (durite) diametre 12-20mm Vendu à l'unité
                                                                                                                                                          €1.00Price
                                                                                                                                                          En Stock
                                                                                                                                                          €13.37 Price
                                                                                                                                                          En Stock
                                                                                                                                                          €13.37 Price
                                                                                                                                                          Joint Plenum Clio 2 RS
                                                                                                                                                              Joint Plenum Clio 2 RS. Joint permettant de faire l’étanchéité entre le collecteur d'admission et le plenum Il est conseillé de le changer lors à chaque démontage et donc lors du retaillage de l'ensemble collecteur / plenum
                                                                                                                                                              €13.37Price
                                                                                                                                                              Joint Plenum Clio 2 RS
                                                                                                                                                                  Joint Plenum Clio 2 RS. Joint permettant de faire l’étanchéité entre le collecteur d'admission et le plenum Il est conseillé de le changer lors à chaque démontage et donc lors du retaillage de l'ensemble collecteur / plenum
                                                                                                                                                                  €13.37Price
                                                                                                                                                                  Joint cuivre de banjo d'alimentation de rampe Twingo R1 et R2
                                                                                                                                                                      Joint cuivre de banjo d'alimentation de rampe Twingo R1 et R2 Référence: 7711050937
                                                                                                                                                                      €3.04Price
                                                                                                                                                                      Joint cuivre de banjo d'alimentation de rampe Twingo R1 et R2
                                                                                                                                                                          Joint cuivre de banjo d'alimentation de rampe Twingo R1 et R2 Référence: 7711050937
                                                                                                                                                                          €3.04Price
                                                                                                                                                                          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