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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)
En Stock
€106.16 Price
En Stock
€106.16 Price
Tuyau huile turbo Megane RS
      Protect your turbocharger's health with this genuine Renault turbo oil feed pipe . Designed for the Renault Megane 2 RS and Megane 3 RS , this line ensures optimal lubrication of the turbine shaft. As this is an evolved version of the original manufacturer part, a specific mounting adapter ...
      €106.16Price
      Tuyau huile turbo Megane RS
          Protect your turbocharger's health with this genuine Renault turbo oil feed pipe . Designed for the Renault Megane 2 RS and Megane 3 RS , this line ensures optimal lubrication of the turbine shaft. As this is an evolved version of the original manufacturer part, a specific mounting adapter ...
          €106.16Price
          En Stock
          €29.62 Price
          En Stock
          €29.62 Price
          Vis creuse tuyauterie alimentation huile Megane RS
              Vis creuse tuyauterie alimentation huile Megane 2 et 3 RS
              €29.62Price
              Vis creuse tuyauterie alimentation huile Megane RS
                  Vis creuse tuyauterie alimentation huile Megane 2 et 3 RS
                  €29.62Price
                  Câble alimentation protection batterie Megane 3 RS et N4
                      Câble alimentation protection batterie Megane 3 RS et N4
                      €96.72Price
                      Câble alimentation protection batterie Megane 3 RS et N4
                          Câble alimentation protection batterie Megane 3 RS et N4
                          €96.72Price
                          En Stock
                          €361.00 Price
                          En Stock
                          €361.00 Price
                          Kit Admisssion Forge Motorsport Megane 4 RSKit Admisssion Forge Motorsport Megane 4 RS
                              Kit Admisssion Forge Motorsport Megane 4 RS Produit developpé dans le but de  - Garder des temperatures d'admission interessantes et les plus basses possibles - Ameliorer l'afflux d'air - Ameliorer l'esthetique de la baie moteur Apres de nombreux essais, les resultats obtenus sont + 15ch Ce gain peut etre superieur en associant ce kit...
                              €361.00Price
                              Kit Admisssion Forge Motorsport Megane 4 RSKit Admisssion Forge Motorsport Megane 4 RS
                                  Kit Admisssion Forge Motorsport Megane 4 RS Produit developpé dans le but de  - Garder des temperatures d'admission interessantes et les plus basses possibles - Ameliorer l'afflux d'air - Ameliorer l'esthetique de la baie moteur Apres de nombreux essais, les resultats obtenus sont + 15ch Ce gain peut etre superieur en associant ce kit...
                                  €361.00Price
                                  En Stock
                                  €126.80 €181.14 Regular price -30% off Price
                                  En Stock
                                  €126.80 €181.14 Regular price -30% off Price
                                  GMV (Ventilateur) type chauffo Twingo RS et R1
                                      GMV (Ventilateur) type chauffo Twingo RS et R1 Référence: 7711162740 - 8200066098 Egalement compatible avec d'autres motorisations
                                      €126.80€181.14Regular price-30% offPrice
                                      GMV (Ventilateur) type chauffo Twingo RS et R1
                                          GMV (Ventilateur) type chauffo Twingo RS et R1 Référence: 7711162740 - 8200066098 Egalement compatible avec d'autres motorisations
                                          €126.80€181.14Regular price-30% offPrice
                                          Dispo selon configuration
                                          €379.68 €399.66 Regular price -€19.98 off Price
                                          Dispo selon configuration
                                          €379.68 €399.66 Regular price -€19.98 off Price
                                          Kit Dump Valve HKS Megane 2 RS
                                            • Pack
                                            Kit complet permettant l'installation d'une dump valve HKS sans nécessiter de produit additionnel.
                                            €379.68€399.66Regular price-€19.98 offPrice
                                            Kit Dump Valve HKS Megane 2 RS
                                              • Pack
                                              Kit complet permettant l'installation d'une dump valve HKS sans nécessiter de produit additionnel.
                                              €379.68€399.66Regular price-€19.98 offPrice
                                              En Stock
                                              €32.92 Price
                                              En Stock
                                              €32.92 Price
                                              Rampe injection Clio 2 RS 172 phase 2 et 182
                                                  Fuel injection rail Renault Clio 2 RS Phase 2 & 3 Give your Renault Clio 2 RS Phase 2 or 3 an optimum fuel supply with the genuine Renault injection rail! Designed for sports driving enthusiasts, this rail guarantees a constant and precise fuel flow, even at high engine speeds, for optimum performance and an unrivalled driving experience. ...
                                                  €32.92Price
                                                  Rampe injection Clio 2 RS 172 phase 2 et 182
                                                      Fuel injection rail Renault Clio 2 RS Phase 2 & 3 Give your Renault Clio 2 RS Phase 2 or 3 an optimum fuel supply with the genuine Renault injection rail! Designed for sports driving enthusiasts, this rail guarantees a constant and precise fuel flow, even at high engine speeds, for optimum performance and an unrivalled driving experience. ...
                                                      €32.92Price
                                                      Dispo selon configuration
                                                      €330.87 €367.63 Regular price -€36.76 off Price
                                                      Dispo selon configuration
                                                      €330.87 €367.63 Regular price -€36.76 off Price
                                                      Kit Dump Valve HKS Megane 3 RSKit Dump Valve HKS Megane 3 RS
                                                        • Pack
                                                        Kit Dump Valve HKS Megane 3 RS Le kit est complet et permet donc de monter une dump HKS sans necessité d'acheter d'autres pieces.
                                                        €330.87€367.63Regular price-€36.76 offPrice
                                                        Kit Dump Valve HKS Megane 3 RSKit Dump Valve HKS Megane 3 RS
                                                          • Pack
                                                          Kit Dump Valve HKS Megane 3 RS Le kit est complet et permet donc de monter une dump HKS sans necessité d'acheter d'autres pieces.
                                                          €330.87€367.63Regular price-€36.76 offPrice
                                                          Régulateur (membrane) pression gaz collecteur admission Clio 3 RS
                                                              Régulateur pression gaz carter Clio 3 RS
                                                              €61.60Price
                                                              Régulateur (membrane) pression gaz collecteur admission Clio 3 RS
                                                                  €61.60Price
                                                                  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
                                                                          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
                                                                                  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
                                                                                          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
                                                                                                  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
                                                                                                                                  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
                                                                                                                                          €12.50 Price
                                                                                                                                          En Stock
                                                                                                                                          €12.50 Price
                                                                                                                                          Joint Collecteur Admission Clio 3 RS
                                                                                                                                              Joint Collecteur Admission Clio 3 RS Joint permettant de faire l’étanchéité entre le moteur et le collecteur d'admission. Il est conseillé de le changer lors à chaque démontage
                                                                                                                                              €12.50Price
                                                                                                                                              Joint Collecteur Admission Clio 3 RS
                                                                                                                                                  Joint Collecteur Admission Clio 3 RS Joint permettant de faire l’étanchéité entre le moteur et le collecteur d'admission. Il est conseillé de le changer lors à chaque démontage
                                                                                                                                                  €12.50Price
                                                                                                                                                  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