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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: Alimentation
  • Categories: Kit Allègement
  • Categories: Support moteur
  • Categories: Suralimentation (Turbo)
Goodridge braided stainless steel tank-to-Tee fuel line part 7711160196 for Renault Twingo R1 R2 & Clio R3.
      Do not risk a sudden drop in fuel pressure during a crucial rally stage, a highly inflammable fuel leak underneath your chassis, or an immediate technical disqualification during safety scrutineering. The genuine Goodridge fuel tank-to-Tee piece braided line , carrying the...
      €119.40Price
      Goodridge braided stainless steel tank-to-Tee fuel line part 7711160196 for Renault Twingo R1 R2 & Clio R3.
          Do not risk a sudden drop in fuel pressure during a crucial rally stage, a highly inflammable fuel leak underneath your chassis, or an immediate technical disqualification during safety scrutineering. The genuine Goodridge fuel tank-to-Tee piece braided line , carrying the...
          €119.40Price
          Durite Silicone liaison conduit air turbo Megane 2 RS pour tubulure FORGEDurite Silicone liaison conduit air turbo Megane 2 RS pour tubulure FORGE
              Durite Silicone liaison conduit air turbo Megane 2 RS Durite visible sur le dessus du moteur
              €14.22Price
              Durite Silicone liaison conduit air turbo Megane 2 RS pour tubulure FORGEDurite Silicone liaison conduit air turbo Megane 2 RS pour tubulure FORGE
                  Durite Silicone liaison conduit air turbo Megane 2 RS Durite visible sur le dessus du moteur
                  €14.22Price
                  Fuel Pump Locking Ring and Seal Kit - Renault Sport Range
                      Ensure a leak-free fuel system with this genuine Renault fuel pump locking ring and seal kit . Essential for any intervention on the fuel sender unit, this kit prevents leaks and persistent fuel odors inside your sports vehicle's cabin. Includes the locking nut (ring) and the...
                      €55.88Price
                      Fuel Pump Locking Ring and Seal Kit - Renault Sport Range
                          Ensure a leak-free fuel system with this genuine Renault fuel pump locking ring and seal kit . Essential for any intervention on the fuel sender unit, this kit prevents leaks and persistent fuel odors inside your sports vehicle's cabin. Includes the locking nut (ring) and the...
                          €55.88Price
                          En Stock
                          €50.86 Price
                          En Stock
                          €50.86 Price
                          Manchon pipe de remplissage réservoir Twingo 2 RS
                              Manchon pipe de remplissage réservoir Twingo 2 RS
                              €50.86Price
                              Manchon pipe de remplissage réservoir Twingo 2 RS
                                  Manchon pipe de remplissage réservoir Twingo 2 RS
                                  €50.86Price
                                  En Stock
                                  €37.52 Price
                                  En Stock
                                  €37.52 Price
                                  Raccord 90° de rampe d'injection Clio Gr N
                                      Secure your fuel system with this official RENAULT SPORT 90° fuel rail fitting . A key component from the competition catalog for the Renault Clio 2 RS Group N , this fitting ensures constant flow and absolute sealing under pressure. Do not let a standard component compromise the safety of your racing setup or your track day...
                                      €37.52Price
                                      Raccord 90° de rampe d'injection Clio Gr N
                                          Secure your fuel system with this official RENAULT SPORT 90° fuel rail fitting . A key component from the competition catalog for the Renault Clio 2 RS Group N , this fitting ensures constant flow and absolute sealing under pressure. Do not let a standard component compromise the safety of your racing setup or your track day...
                                          €37.52Price
                                          En Stock
                                          €36.01 Price
                                          En Stock
                                          €36.01 Price
                                          Kit ressorts Dump Valve Forge
                                              Kit comprenant plusieurs ressorts pour ajuster vos Dump Valve Ne convient pas pour les références de dump suivantes : FMDVFSIT, FMDVFSITVR et FMDVK04D Kit permettant l'optimisation de votre Dump afin de l'ajuster à vos autres modifications (préparation). Il est composé de 4 ressorts de remplacement. Couleurs des ressorts et pressions correspondantes: Vert 0,3 à 1,03 Bar Jaune 1.03 à 1,53 Bar...
                                              €36.01Price
                                              Kit ressorts Dump Valve Forge
                                                  Kit comprenant plusieurs ressorts pour ajuster vos Dump Valve Ne convient pas pour les références de dump suivantes : FMDVFSIT, FMDVFSITVR et FMDVK04D Kit permettant l'optimisation de votre Dump afin de l'ajuster à vos autres modifications (préparation). Il est composé de 4 ressorts de remplacement. Couleurs des ressorts et pressions correspondantes: Vert 0,3 à 1,03 Bar Jaune 1.03 à 1,53 Bar...
                                                  €36.01Price
                                                  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
                                                          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
                                                                  Dispo selon configuration
                                                                  €6.00 Price
                                                                  Dispo selon configuration
                                                                  €6.00 Price
                                                                  Tuyau de dépressionTuyau de dépression
                                                                      Tuyau de depression de diamètre 4mm. Sert généralement pour l'installation de Dump Valve. Prix au metre
                                                                      €6.00Price
                                                                      Tuyau de dépressionTuyau de dépression
                                                                          Tuyau de depression de diamètre 4mm. Sert généralement pour l'installation de Dump Valve. Prix au metre
                                                                          €6.00Price
                                                                          En Stock
                                                                          €23.50 Price
                                                                          En Stock
                                                                          €23.50 Price
                                                                          Kit Revision Dump Valve Recirculation Forge
                                                                              Kit revision pour Dump Valve Forge comprenant: - 1 sachet de graisse - un piston - joints toriques 
                                                                              €23.50Price
                                                                              Kit Revision Dump Valve Recirculation Forge
                                                                                  Kit revision pour Dump Valve Forge comprenant: - 1 sachet de graisse - un piston - joints toriques 
                                                                                  €23.50Price
                                                                                  En Stock
                                                                                  €220.46 Price
                                                                                  En Stock
                                                                                  €220.46 Price
                                                                                  Dump Valve Forge Recirculation Megane RS
                                                                                      Maximize your engine's responsiveness with the Forge Motorsport Recirculation Dump Valve for Renault Megane 2 RS and Megane 3 RS (reference FMDVRMR ). Unlike atmospheric blow-off valves, this recirculation version diverts air back into the intake system to...
                                                                                      €220.46Price
                                                                                      Dump Valve Forge Recirculation Megane RS
                                                                                          Maximize your engine's responsiveness with the Forge Motorsport Recirculation Dump Valve for Renault Megane 2 RS and Megane 3 RS (reference FMDVRMR ). Unlike atmospheric blow-off valves, this recirculation version diverts air back into the intake system to...
                                                                                          €220.46Price
                                                                                          Dispo selon configuration
                                                                                          €65.11 Price
                                                                                          Dispo selon configuration
                                                                                          €65.11 Price
                                                                                          T de raccord de Dump Megane 2 RS
                                                                                              T de marque Forge pour le raccord de Dump Valve (Diametre de liaison 25mm)
                                                                                              €65.11Price
                                                                                              T de raccord de Dump Megane 2 RS
                                                                                                  T de marque Forge pour le raccord de Dump Valve (Diametre de liaison 25mm)
                                                                                                  €65.11Price
                                                                                                  En Stock
                                                                                                  €790.00 Price
                                                                                                  En Stock
                                                                                                  €790.00 Price
                                                                                                  Echangeur Wagner Megane 3 RSEchangeur Wagner Megane 3 RS
                                                                                                      Wagner Tuning Intercooler for Renault Mégane 3 RS: Boost your sports car's performance with this high-performance intercooler. Designed to efficiently cool the turbocharged air, it enhances your engine's power, torque, and reliability, while also giving your vehicle a sportier look.
                                                                                                      €790.00Price
                                                                                                      Echangeur Wagner Megane 3 RSEchangeur Wagner Megane 3 RS
                                                                                                          Wagner Tuning Intercooler for Renault Mégane 3 RS: Boost your sports car's performance with this high-performance intercooler. Designed to efficiently cool the turbocharged air, it enhances your engine's power, torque, and reliability, while also giving your vehicle a sportier look.
                                                                                                          €790.00Price
                                                                                                          Raccord Pompe à essence Clio GrN
                                                                                                              Renault Clio 2 Group N Fuel Pump Connector , a component intended for the fuel supply system of vehicles configured for Group N applications. Vehicle brand: Renault Model: Clio 2 Application: Group N Part type: Fuel pump connector ...
                                                                                                              €50.45Price
                                                                                                              Raccord Pompe à essence Clio GrN
                                                                                                                  Renault Clio 2 Group N Fuel Pump Connector , a component intended for the fuel supply system of vehicles configured for Group N applications. Vehicle brand: Renault Model: Clio 2 Application: Group N Part type: Fuel pump connector ...
                                                                                                                  €50.45Price
                                                                                                                  En Stock
                                                                                                                  €244.00 Price
                                                                                                                  En Stock
                                                                                                                  €244.00 Price
                                                                                                                  Wasegate Forge Megane RS
                                                                                                                      Dotée d'un tarage plus ferme que le modèle d'origine, elle permet une mise en action plus rapide du turbo, et une pression de sural plus stable.
                                                                                                                      €244.00Price
                                                                                                                      Wasegate Forge Megane RS
                                                                                                                          Dotée d'un tarage plus ferme que le modèle d'origine, elle permet une mise en action plus rapide du turbo, et une pression de sural plus stable.
                                                                                                                          €244.00Price
                                                                                                                          En Stock
                                                                                                                          €1.00 Price
                                                                                                                          En Stock
                                                                                                                          €1.00 Price
                                                                                                                          Collier serrage inox (durite) diametre 8-12mm
                                                                                                                              Collier serrage inox (durite) diametre 8-12mm Vendu à l'unité
                                                                                                                              €1.00Price
                                                                                                                              Collier serrage inox (durite) diametre 8-12mm
                                                                                                                                  Collier serrage inox (durite) diametre 8-12mm Vendu à l'unité
                                                                                                                                  €1.00Price
                                                                                                                                  En Stock
                                                                                                                                  €396.19 Price
                                                                                                                                  En Stock
                                                                                                                                  €396.19 Price
                                                                                                                                  Module jauge pompe Megane 2 RSMegane 2 RS Fuel Gauge/Pump Module - Original
                                                                                                                                      The original Renault fuel gauge/pump module is an essential part to ensure reliable and precise fuel supply on your Renault Megane 2 RS . Please note, there are two different assemblies for this vehicle. Contact us with your vehicle's VIN for accurate guidance.
                                                                                                                                      €396.19Price
                                                                                                                                      Module jauge pompe Megane 2 RSMegane 2 RS Fuel Gauge/Pump Module - Original
                                                                                                                                          The original Renault fuel gauge/pump module is an essential part to ensure reliable and precise fuel supply on your Renault Megane 2 RS . Please note, there are two different assemblies for this vehicle. Contact us with your vehicle's VIN for accurate guidance.
                                                                                                                                          €396.19Price
                                                                                                                                          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
                                                                                                                                                  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
                                                                                                                                                          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
                                                                                                                                                                  Interrupteur coup de poing Megane N4
                                                                                                                                                                      Take zero risks on the track or in competition with this genuine Renault Sport emergency kill switch . An essential component of the electrical system for the Renault Megane N4 and Renault Twingo R2 , this emergency cutoff switch immediately cuts off power in the event of an incident to prevent electrical...
                                                                                                                                                                      €20.30Price
                                                                                                                                                                      Interrupteur coup de poing Megane N4
                                                                                                                                                                          Take zero risks on the track or in competition with this genuine Renault Sport emergency kill switch . An essential component of the electrical system for the Renault Megane N4 and Renault Twingo R2 , this emergency cutoff switch immediately cuts off power in the event of an incident to prevent electrical...
                                                                                                                                                                          €20.30Price
                                                                                                                                                                          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
                                                                                                                                                                                  €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
                                                                                                                                                                                          Tuyau carburant entre coupling Goodridge et rampe Megane N4
                                                                                                                                                                                              Tuyau carburant entre coupling Goodridge et rampe Megane N4 Référence: 7711167090
                                                                                                                                                                                              €146.16Price
                                                                                                                                                                                              Tuyau carburant entre coupling Goodridge et rampe Megane N4
                                                                                                                                                                                                  Tuyau carburant entre coupling Goodridge et rampe Megane N4 Référence: 7711167090
                                                                                                                                                                                                  €146.16Price
                                                                                                                                                                                                  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
                                                                                                                                                                                                          €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
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €98.33 Price
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €98.33 Price
                                                                                                                                                                                                                  Reinforced aluminum piston dump valve by Forge Motorsport for Megane 4 GT 205, SKU: FMSPRN12.Forge Piston Dump Valve | Renault Megane 4 GT 205
                                                                                                                                                                                                                      Prevent boost pressure leaks and safeguard your turbocharger's mechanical integrity with the Forge Dump Valve Megane 4 GT 205 . Engineered to replace the fragile factory rubber diaphragm valve, this premium billet aluminum piston-driven version guarantees a perfect air-tight...
                                                                                                                                                                                                                      €98.33Price
                                                                                                                                                                                                                      Reinforced aluminum piston dump valve by Forge Motorsport for Megane 4 GT 205, SKU: FMSPRN12.Forge Piston Dump Valve | Renault Megane 4 GT 205
                                                                                                                                                                                                                          Prevent boost pressure leaks and safeguard your turbocharger's mechanical integrity with the Forge Dump Valve Megane 4 GT 205 . Engineered to replace the fragile factory rubber diaphragm valve, this premium billet aluminum piston-driven version guarantees a perfect air-tight...
                                                                                                                                                                                                                          €98.33Price
                                                                                                                                                                                                                          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