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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: Circuit d'air
  • Categories: Refroidissement
  • Categories: Suralimentation (Turbo)
Dispo selon configuration
€169.00 €209.02 Regular price -€40.02 off Price
Dispo selon configuration
€169.00 €209.02 Regular price -€40.02 off Price
COLD SIDE Clio 4 RS (conduit d'air renforcé)Uprated Cold Side Boost Pipe Kit - Renault Clio 4 RS
    • Pack
    Protect your turbocharging system against pressure drops with the high-performance Cold Side Kit for the Renault Clio 4 RS (Uprated Air Guide Pipe) . This reinforced intake hose replaces the fragile factory plastic pipe that is prone to cracking, optimizing cold airflow...
    €169.00€209.02Regular price-€40.02 offPrice
    COLD SIDE Clio 4 RS (conduit d'air renforcé)Uprated Cold Side Boost Pipe Kit - Renault Clio 4 RS
      • Pack
      Protect your turbocharging system against pressure drops with the high-performance Cold Side Kit for the Renault Clio 4 RS (Uprated Air Guide Pipe) . This reinforced intake hose replaces the fragile factory plastic pipe that is prone to cracking, optimizing cold airflow...
      €169.00€209.02Regular price-€40.02 offPrice
      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 d'admission d'air Forge Motorsport Mégane 3 RSDurite d'admission d'air Forge Motorsport Mégane 3 RS
                  Durite d'admission d'air silicone Forge Motorsport qui se fixe en sortie de boite à air. Celle ce permet d'augmenter le débit d'air notamment grâce à un diamètre plus gros ainsi qu'une surface lisse interne. Se monte en lieu et place de celle d'origine Plusieurs couleurs disponibles
                  €159.77Price
                  Durite d'admission d'air Forge Motorsport Mégane 3 RSDurite d'admission d'air Forge Motorsport Mégane 3 RS
                      Durite d'admission d'air silicone Forge Motorsport qui se fixe en sortie de boite à air. Celle ce permet d'augmenter le débit d'air notamment grâce à un diamètre plus gros ainsi qu'une surface lisse interne. Se monte en lieu et place de celle d'origine Plusieurs couleurs disponibles
                      €159.77Price
                      Pompe essence modifiée Clio Gr NModified Fuel Pump DASH Fitting Renault Sport for Renault Clio 2 Gr N (7711129520)
                        • Pack
                        Do not take the risk of seeing the performance of your Renault Clio 2 Group N drop sharply. Without a stable and optimal fuel supply, you lose your advantage on the track. This modified fuel pump (Reference 7711129520 ) is the official Renault Sport part essential for maintaining...
                        €269.74Price
                        Pompe essence modifiée Clio Gr NModified Fuel Pump DASH Fitting Renault Sport for Renault Clio 2 Gr N (7711129520)
                          • Pack
                          Do not take the risk of seeing the performance of your Renault Clio 2 Group N drop sharply. Without a stable and optimal fuel supply, you lose your advantage on the track. This modified fuel pump (Reference 7711129520 ) is the official Renault Sport part essential for maintaining...
                          €269.74Price
                          High-tensile steel replacement tuning preload spring for Forge Motorsport dump valves.
                              Prevent boost pressure leaks and excessive throttle response lag on your turbocharged engine block. This premium Forge Dump Valve Preload Spring features an uprated mechanical rating designed specifically to maintain the internal piston seal of your bypass valve under high...
                              €10.93Price
                              High-tensile steel replacement tuning preload spring for Forge Motorsport dump valves.
                                  Prevent boost pressure leaks and excessive throttle response lag on your turbocharged engine block. This premium Forge Dump Valve Preload Spring features an uprated mechanical rating designed specifically to maintain the internal piston seal of your bypass valve under high...
                                  €10.93Price
                                  Multi-layer reinforced silicone turbo boost hose kit by Forge Motorsport for Renault Megane 2 RS.Silicone Turbo Hose Kit Forge | Renault Megane 2 RS
                                      Do not risk a sudden loss of boost pressure during a hard acceleration pull, a split factory duct caused by extreme engine bay heat, or an efficiency drop at your intercooler cores. The premium Kit Durites (Tubulures) Turbo Forge Motorsport pour Megane 2 RS replaces...
                                      €241.00Price
                                      Multi-layer reinforced silicone turbo boost hose kit by Forge Motorsport for Renault Megane 2 RS.Silicone Turbo Hose Kit Forge | Renault Megane 2 RS
                                          Do not risk a sudden loss of boost pressure during a hard acceleration pull, a split factory duct caused by extreme engine bay heat, or an efficiency drop at your intercooler cores. The premium Kit Durites (Tubulures) Turbo Forge Motorsport pour Megane 2 RS replaces...
                                          €241.00Price
                                          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
                                                  €178.04 Price
                                                  En Stock
                                                  €178.04 Price
                                                  Pompe à Essence Clio 2 RS et X65 Cup
                                                      Fuel Gauge/Pump Module Renault Clio 2 RS (Original) Original Renault fuel gauge/pump module for Clio 2 RS Phase 2/3 (without regulator on rail) and Clio 2 X65 Cup. Ensures reliable fuel supply. Discover the compatible fixing ring and gasket at the bottom of the page.
                                                      €178.04Price
                                                      Pompe à Essence Clio 2 RS et X65 Cup
                                                          Fuel Gauge/Pump Module Renault Clio 2 RS (Original) Original Renault fuel gauge/pump module for Clio 2 RS Phase 2/3 (without regulator on rail) and Clio 2 X65 Cup. Ensures reliable fuel supply. Discover the compatible fixing ring and gasket at the bottom of the page.
                                                          €178.04Price
                                                          Dump Valve Megane 3 RS avec Kit de montageDump Valve Megane 3 RS avec Kit de montage
                                                              Kit Dump Valve Forge. Circuit ouvert. Ce mode de fonctionnement est reconnaissable au PSSCHHIIIITTT qui se laisse entendre lors du changement de rapport Le kit Comprend, la Dump Valve, 2 colliers, un raccord inox, et un tube coudé et le bouchon nécessaire à boucher le trou lors de la suppression de la dump valve d'origine (pas present dans tous les kits que l'on trouve sur le net). Idéal sur...
                                                              €261.86Price
                                                              Dump Valve Megane 3 RS avec Kit de montageDump Valve Megane 3 RS avec Kit de montage
                                                                  Kit Dump Valve Forge. Circuit ouvert. Ce mode de fonctionnement est reconnaissable au PSSCHHIIIITTT qui se laisse entendre lors du changement de rapport Le kit Comprend, la Dump Valve, 2 colliers, un raccord inox, et un tube coudé et le bouchon nécessaire à boucher le trou lors de la suppression de la dump valve d'origine (pas present dans tous les kits que l'on trouve sur le net). Idéal sur...
                                                                  €261.86Price
                                                                  Dispo selon configuration
                                                                  €925.00 Price
                                                                  Dispo selon configuration
                                                                  €925.00 Price
                                                                  Echangeur Forge Clio 4 RSEchangeur Forge Clio 4 RS
                                                                      La dernière génération 1.6 turbo Renault Clio dispose d'un echangeur monté verticalement. L'endroit n' est pas ideal et trop petit pour la voiture standard. La solution pour les voitures Renault Clio Cup était de rénover l'ensemble du réseau avec un refroidissement par pulvérisation d'eau, mais ce fut insuffisant sur la piste après quelques tours. Notre solution était un échangeur monté...
                                                                      €925.00Price
                                                                      Echangeur Forge Clio 4 RSEchangeur Forge Clio 4 RS
                                                                          La dernière génération 1.6 turbo Renault Clio dispose d'un echangeur monté verticalement. L'endroit n' est pas ideal et trop petit pour la voiture standard. La solution pour les voitures Renault Clio Cup était de rénover l'ensemble du réseau avec un refroidissement par pulvérisation d'eau, mais ce fut insuffisant sur la piste après quelques tours. Notre solution était un échangeur monté...
                                                                          €925.00Price
                                                                          En Stock
                                                                          €59.00 €69.41 Regular price -15% off Price
                                                                          En Stock
                                                                          €59.00 €69.41 Regular price -15% off Price
                                                                          Fuel Injector Genuine Renault Clio 2 RS / Gr.N / CupFuel Injector Genuine Renault Clio 2 RS / Gr.N / Cup
                                                                              Protect your engine's health with this genuine Renault injector specifically designed for the Clio 2 RS . This authentic part features the ITG M60 marking, guaranteeing optimal fuel atomization for high-performance 2.0 16v engines. Brand new and original Renault ...
                                                                              €59.00€69.41Regular price-15% offPrice
                                                                              Fuel Injector Genuine Renault Clio 2 RS / Gr.N / CupFuel Injector Genuine Renault Clio 2 RS / Gr.N / Cup
                                                                                  Protect your engine's health with this genuine Renault injector specifically designed for the Clio 2 RS . This authentic part features the ITG M60 marking, guaranteeing optimal fuel atomization for high-performance 2.0 16v engines. Brand new and original Renault ...
                                                                                  €59.00€69.41Regular price-15% offPrice
                                                                                  En Stock
                                                                                  €10.57 €13.93 Regular price -€3.36 off Price
                                                                                  En Stock
                                                                                  €10.57 €13.93 Regular price -€3.36 off Price
                                                                                  Joint Collecteur Admission Clio 2 RS
                                                                                      Ensure vital engine sealing with this genuine Renault intake manifold gasket for the Clio 2 RS (172 and 182hp). This authentic component guarantees a perfect junction between the cylinder head and your manifold, preventing any parasitic air leaks that could degrade the performance of your F4R engine . Do not...
                                                                                      €10.57€13.93Regular price-€3.36 offPrice
                                                                                      Joint Collecteur Admission Clio 2 RS
                                                                                          Ensure vital engine sealing with this genuine Renault intake manifold gasket for the Clio 2 RS (172 and 182hp). This authentic component guarantees a perfect junction between the cylinder head and your manifold, preventing any parasitic air leaks that could degrade the performance of your F4R engine . Do not...
                                                                                          €10.57€13.93Regular price-€3.36 offPrice
                                                                                          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
                                                                                                  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
                                                                                                          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
                                                                                                                  Dump Valve Ouverte Forge Clio 4 RSDump Valve Ouverte Forge Clio 4 RS
                                                                                                                      The Forge Motorsport open dump valve , reference FMDVC200A , is designed for the Renault Clio IV RS 1.6 Turbo 200/220 . This atmospheric blow-off valve replaces the standard setup and releases excess boost pressure externally when the throttle is lifted. The kit is specifically developed for the Clio 4 RS and includes...
                                                                                                                      €191.53Price
                                                                                                                      Dump Valve Ouverte Forge Clio 4 RSDump Valve Ouverte Forge Clio 4 RS
                                                                                                                          The Forge Motorsport open dump valve , reference FMDVC200A , is designed for the Renault Clio IV RS 1.6 Turbo 200/220 . This atmospheric blow-off valve replaces the standard setup and releases excess boost pressure externally when the throttle is lifted. The kit is specifically developed for the Clio 4 RS and includes...
                                                                                                                          €191.53Price
                                                                                                                          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
                                                                                                                                  €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