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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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Pompe à eau Origine Renault Clio 3 RS - Megane 2 RS - Megane 3 RSGenuine OEM Water Pump - Renault Clio 3 RS / Megane 2/3 RS
      Safeguard the mechanical reliability and thermal efficiency of your high-performance engine with the Genuine Renault Sport Water Pump for F4R and F4Rt engines . This authentic factory replacement component is essential to ensure optimum coolant circulation under intense road...
      €117.43Price
      Pompe à eau Origine Renault Clio 3 RS - Megane 2 RS - Megane 3 RSGenuine OEM Water Pump - Renault Clio 3 RS / Megane 2/3 RS
          Safeguard the mechanical reliability and thermal efficiency of your high-performance engine with the Genuine Renault Sport Water Pump for F4R and F4Rt engines . This authentic factory replacement component is essential to ensure optimum coolant circulation under intense road...
          €117.43Price
          En Stock
          €66.48 Price
          En Stock
          €66.48 Price
          Coussinets de Vilebrequin Trimetal ergotés ACLCoussinets de Vilebrequin Trimetal ergotés ACL
              Coussinet de vilebrequin trimetal Coussinets pour F7P, F7R, F4R, F4R soit pour Clio 16S, Williams, clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS Présence d'ergots.
              €66.48Price
              Coussinets de Vilebrequin Trimetal ergotés ACLCoussinets de Vilebrequin Trimetal ergotés ACL
                  Coussinet de vilebrequin trimetal Coussinets pour F7P, F7R, F4R, F4R soit pour Clio 16S, Williams, clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS Présence d'ergots.
                  €66.48Price
                  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
                          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
                                  €47.34 Price
                                  En Stock
                                  €47.34 Price
                                  Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2
                                      Genuine Renault Exhaust Valve - Twingo 2 RS, Twingo R1, Twingo R2 160hp Authentic Renault exhaust valve, ensuring optimal sealing and performance. Specific replacement part for Renault Twingo 2 RS, Twingo R1, and Twingo R2 160hp models. Contributes to proper engine operation and efficient exhaust gas...
                                      €47.34Price
                                      Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2
                                          Genuine Renault Exhaust Valve - Twingo 2 RS, Twingo R1, Twingo R2 160hp Authentic Renault exhaust valve, ensuring optimal sealing and performance. Specific replacement part for Renault Twingo 2 RS, Twingo R1, and Twingo R2 160hp models. Contributes to proper engine operation and efficient exhaust gas...
                                          €47.34Price
                                          En Stock
                                          €221.33 Price
                                          En Stock
                                          €221.33 Price
                                          Radiator Outlet Water Hose Renault Megane 3 RSRadiator Outlet Water Hose Renault Megane 3 RS
                                              Genuine Renault Radiator Outlet Water Hose for Renault Megane 3 RS. Essential part for optimal engine cooling. Renault quality and reliability.
                                              €221.33Price
                                              Radiator Outlet Water Hose Renault Megane 3 RSRadiator Outlet Water Hose Renault Megane 3 RS
                                                  Genuine Renault Radiator Outlet Water Hose for Renault Megane 3 RS. Essential part for optimal engine cooling. Renault quality and reliability.
                                                  €221.33Price
                                                  DeatschWerks 265L/H Fuel Pump (E85) for Renault Megane 2 RS
                                                      Secure your engine build with the DeatschWerks DW65c fuel pump , delivering a high-performance flow rate of 265L/H . Specifically engineered for the Renault Megane 2 RS , this pump offers the major advantage of being 100% E85 compatible (ethanol), making it the perfect choice for flex-fuel conversions. Its compact design allows...
                                                      €224.09Price
                                                      DeatschWerks 265L/H Fuel Pump (E85) for Renault Megane 2 RS
                                                          Secure your engine build with the DeatschWerks DW65c fuel pump , delivering a high-performance flow rate of 265L/H . Specifically engineered for the Renault Megane 2 RS , this pump offers the major advantage of being 100% E85 compatible (ethanol), making it the perfect choice for flex-fuel conversions. Its compact design allows...
                                                          €224.09Price
                                                          Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                                                              Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                                                              €33.94Price
                                                              Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                                                                  Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                                                                  €33.94Price
                                                                  En Stock
                                                                  €224.35 Price
                                                                  En Stock
                                                                  €224.35 Price
                                                                  Kit Joint Refection moteur Origine Clio 2 RS
                                                                      Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
                                                                      €224.35Price
                                                                      Kit Joint Refection moteur Origine Clio 2 RS
                                                                          Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
                                                                          €224.35Price
                                                                          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
                                                                                  Jeu durites Eau Silicone Forge Clio 2 RSJeu durites Eau Silicone Forge Clio 2 RS
                                                                                      Jeu de 6 durites Silicone Forge. Ce kit remplace avantageusement les durites d'origines de la voiture car beaucoup plus résistantes. Apporte également un look visuel racing à votre moteur.
                                                                                      €317.09Price
                                                                                      Jeu durites Eau Silicone Forge Clio 2 RSJeu durites Eau Silicone Forge Clio 2 RS
                                                                                          Jeu de 6 durites Silicone Forge. Ce kit remplace avantageusement les durites d'origines de la voiture car beaucoup plus résistantes. Apporte également un look visuel racing à votre moteur.
                                                                                          €317.09Price
                                                                                          En Stock
                                                                                          €70.25 Price
                                                                                          En Stock
                                                                                          €70.25 Price
                                                                                          Blue Crankshaft Half-Bearing Set
                                                                                              Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                                                                                              €70.25Price
                                                                                              Blue Crankshaft Half-Bearing Set
                                                                                                  Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                                                                                                  €70.25Price
                                                                                                  En Stock
                                                                                                  €81.65 Price
                                                                                                  En Stock
                                                                                                  €81.65 Price
                                                                                                  Bielle Twingo RS R1 et R2 160Bielle Twingo RS R1 et R2 160
                                                                                                      Connecting Rod for Twingo RS R1 and R2 160: Enhance the durability and performance of your engine with this robust connecting rod, designed for extreme conditions and easy installation.
                                                                                                      €81.65Price
                                                                                                      Bielle Twingo RS R1 et R2 160Bielle Twingo RS R1 et R2 160
                                                                                                          Connecting Rod for Twingo RS R1 and R2 160: Enhance the durability and performance of your engine with this robust connecting rod, designed for extreme conditions and easy installation.
                                                                                                          €81.65Price
                                                                                                          Genuine Renault Sport throttle position potentiometer for Twingo R2, Clio R3, and X85 Cup racing engines.
                                                                                                              Do not risk unpredictable ignition cuts during a rally stage, a sudden loss of immediate throttle response, or an abrupt limp-mode activation that freezes your lap times on track. The genuine Potentiomètre papillon Twingo R2, Clio R3 et X85 Cup is the official factory-spec...
                                                                                                              €138.05Price
                                                                                                              Genuine Renault Sport throttle position potentiometer for Twingo R2, Clio R3, and X85 Cup racing engines.
                                                                                                                  Do not risk unpredictable ignition cuts during a rally stage, a sudden loss of immediate throttle response, or an abrupt limp-mode activation that freezes your lap times on track. The genuine Potentiomètre papillon Twingo R2, Clio R3 et X85 Cup is the official factory-spec...
                                                                                                                  €138.05Price
                                                                                                                  Bouchon Vase Expansion 1.4 BarGenuine Renault Expansion Tank Cap 1.4 Bar - Super 5 GT Turbo / Clio 16S / Williams / R21 Turbo
                                                                                                                      Safeguard your cooling system with this genuine Renault expansion tank cap rated at 1.4 Bar . Specifically engineered for legendary performance models such as the Renault Super 5 GT Turbo , Clio Williams , and R21 2L Turbo , it ensures optimal pressure regulation to prevent engine overheating. A vital precision...
                                                                                                                      €28.78Price
                                                                                                                      Bouchon Vase Expansion 1.4 BarGenuine Renault Expansion Tank Cap 1.4 Bar - Super 5 GT Turbo / Clio 16S / Williams / R21 Turbo
                                                                                                                          Safeguard your cooling system with this genuine Renault expansion tank cap rated at 1.4 Bar . Specifically engineered for legendary performance models such as the Renault Super 5 GT Turbo , Clio Williams , and R21 2L Turbo , it ensures optimal pressure regulation to prevent engine overheating. A vital precision...
                                                                                                                          €28.78Price
                                                                                                                          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
                                                                                                                              En Stock
                                                                                                                              €133.31 Price
                                                                                                                              En Stock
                                                                                                                              €133.31 Price
                                                                                                                              Joint de Culasse renforcé CometicJoint de Culasse renforcé Cometic
                                                                                                                                  Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 0.75mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                                                                  €133.31Price
                                                                                                                                  Joint de Culasse renforcé CometicJoint de Culasse renforcé Cometic
                                                                                                                                      Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 0.75mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                                                                      €133.31Price
                                                                                                                                      En Stock
                                                                                                                                      €279.71 Price
                                                                                                                                      En Stock
                                                                                                                                      €279.71 Price
                                                                                                                                      Kit 11 Durites Silicone Super 5 GT TURBO Ph 2Kit 11 Durites Silicone Super 5 GT TURBO Ph 2
                                                                                                                                          Kit de 11 Durites Silicones pour Super 5 GT Turbo Phase 2 Noir mat afin de rester dans l'esprit d'origine de la voiture Parfait pour une restoration
                                                                                                                                          €279.71Price
                                                                                                                                          Kit 11 Durites Silicone Super 5 GT TURBO Ph 2Kit 11 Durites Silicone Super 5 GT TURBO Ph 2
                                                                                                                                              Kit de 11 Durites Silicones pour Super 5 GT Turbo Phase 2 Noir mat afin de rester dans l'esprit d'origine de la voiture Parfait pour une restoration
                                                                                                                                              €279.71Price
                                                                                                                                              Bague étanchéité arbre à cames Twingo R2Twingo RS (R1/R2) Exhaust Camshaft Oil Seal - Original
                                                                                                                                                  The original Renault exhaust camshaft oil seal is an essential sealing part for your Renault Twingo RS, Twingo R1 , or Twingo R2 . It ensures a tight seal between the camshaft, cylinder head, and valve cover, preserving your engine's performance and reliability.
                                                                                                                                                  €16.92Price
                                                                                                                                                  Bague étanchéité arbre à cames Twingo R2Twingo RS (R1/R2) Exhaust Camshaft Oil Seal - Original
                                                                                                                                                      The original Renault exhaust camshaft oil seal is an essential sealing part for your Renault Twingo RS, Twingo R1 , or Twingo R2 . It ensures a tight seal between the camshaft, cylinder head, and valve cover, preserving your engine's performance and reliability.
                                                                                                                                                      €16.92Price
                                                                                                                                                      En Stock
                                                                                                                                                      €81.58 Price
                                                                                                                                                      En Stock
                                                                                                                                                      €81.58 Price
                                                                                                                                                      Flexible de carburant Té vers rampe Twingo R1 - Clio R3 Max
                                                                                                                                                          Do not let a preventable engine failure ruin your race weekend. This high-pressure fuel hose , an authentic Renault Sport component (references 7711160195 / 7711162420 ), is the critical link between the T-connector and the fuel injector rail . Specifically engineered for Twingo R1,...
                                                                                                                                                          €81.58Price
                                                                                                                                                          Flexible de carburant Té vers rampe Twingo R1 - Clio R3 Max
                                                                                                                                                              Do not let a preventable engine failure ruin your race weekend. This high-pressure fuel hose , an authentic Renault Sport component (references 7711160195 / 7711162420 ), is the critical link between the T-connector and the fuel injector rail . Specifically engineered for Twingo R1,...
                                                                                                                                                              €81.58Price