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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
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En Stock
€8.57 Price
En Stock
€8.57 Price
Joint de décanteur Clio 2 RS - Clio 3 RS
      Joint de décanteur Clio 2 RS et Clio 3 RS Joint se trouvant entre le décanteur et le plenum
      €8.57Price
      Joint de décanteur Clio 2 RS - Clio 3 RS
          Joint de décanteur Clio 2 RS et Clio 3 RS Joint se trouvant entre le décanteur et le plenum
          €8.57Price
          En Stock
          €19.30 €25.79 Regular price -€6.49 off Price
          En Stock
          €19.30 €25.79 Regular price -€6.49 off Price
          Courroie accessoire Twingo RS et R1
              Don't risk an unexpected breakdown! This summary concerns the Genuine RENAULT Accessory Belt for the Renault Twingo 2 RS and Renault Wind 1.6 16v models. This is an essential part for the smooth running of your sports engine. Failing to replace it in time risks costly damage. ...
              €19.30€25.79Regular price-€6.49 offPrice
              Courroie accessoire Twingo RS et R1
                  Don't risk an unexpected breakdown! This summary concerns the Genuine RENAULT Accessory Belt for the Renault Twingo 2 RS and Renault Wind 1.6 16v models. This is an essential part for the smooth running of your sports engine. Failing to replace it in time risks costly damage. ...
                  €19.30€25.79Regular price-€6.49 offPrice
                  En Stock
                  €43.02 Price
                  En Stock
                  €43.02 Price
                  Joint Spy Vilebrequin coté distribution
                      The original Renault crankshaft oil seal, timing side is an essential part to ensure crankshaft sealing in the engines of your Renault Clio 2 RS , Clio 2 GR N , Clio 2 X65 Cup , Clio 3 RS , Clio R3 , Clio 3 X85 Cup , Mégane 2 RS , Mégane 3 RS , and...
                      €43.02Price
                      Joint Spy Vilebrequin coté distribution
                          The original Renault crankshaft oil seal, timing side is an essential part to ensure crankshaft sealing in the engines of your Renault Clio 2 RS , Clio 2 GR N , Clio 2 X65 Cup , Clio 3 RS , Clio R3 , Clio 3 X85 Cup , Mégane 2 RS , Mégane 3 RS , and...
                          €43.02Price
                          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
                                  Collection Entrainement pompe à huile Clio 2 RS, Gr N et X65Cup
                                      Collection Entrainement pompe à huile Clio 2 RS, Gr N et X65Cup
                                      €54.25Price
                                      Collection Entrainement pompe à huile Clio 2 RS, Gr N et X65Cup
                                          Collection Entrainement pompe à huile Clio 2 RS, Gr N et X65Cup
                                          €54.25Price
                                          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
                                                  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
                                                          Calorstat Clio 3 RS 75°
                                                              Control your engine's temperature with this genuine Renault thermostat with an opening temperature of 75°C . Specifically designed for the Clio 3 RS , it also mounts without modification on the Clio 2 RS , allowing the cooling circuit to open more quickly. This part is essential for limiting temperature spikes and preventing the risk of engine overheating ...
                                                              €78.18Price
                                                              Calorstat Clio 3 RS 75°
                                                                  Control your engine's temperature with this genuine Renault thermostat with an opening temperature of 75°C . Specifically designed for the Clio 3 RS , it also mounts without modification on the Clio 2 RS , allowing the cooling circuit to open more quickly. This part is essential for limiting temperature spikes and preventing the risk of engine overheating ...
                                                                  €78.18Price
                                                                  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
                                                                          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
                                                                                  €22.74 Price
                                                                                  En Stock
                                                                                  €22.74 Price
                                                                                  Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                                                                                      Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                                                                                      €22.74Price
                                                                                      Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                                                                                          Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                                                                                          €22.74Price
                                                                                          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
                                                                                                  En Stock
                                                                                                  €30.64 Price
                                                                                                  En Stock
                                                                                                  €30.64 Price
                                                                                                  Joint tournant (joint spy vilebrequin coté volant moteur)
                                                                                                      The original Renault flywheel side oil seal is an essential part to ensure engine sealing for your Renault Clio 2 RS, Gr N, X65 Cup, Clio 3 RS, R3, X85 Cup, Mégane 2 RS, and Mégane 3 RS . Prevent oil leaks and maintain your vehicle's performance with this authentic replacement part.
                                                                                                      €30.64Price
                                                                                                      Joint tournant (joint spy vilebrequin coté volant moteur)
                                                                                                          The original Renault flywheel side oil seal is an essential part to ensure engine sealing for your Renault Clio 2 RS, Gr N, X65 Cup, Clio 3 RS, R3, X85 Cup, Mégane 2 RS, and Mégane 3 RS . Prevent oil leaks and maintain your vehicle's performance with this authentic replacement part.
                                                                                                          €30.64Price
                                                                                                          En Stock
                                                                                                          €20.80 Price
                                                                                                          En Stock
                                                                                                          €20.80 Price
                                                                                                          Exhaust Manifold Gasket | Renault Twingo 2 RS / R2
                                                                                                              Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
                                                                                                              €20.80Price
                                                                                                              Exhaust Manifold Gasket | Renault Twingo 2 RS / R2
                                                                                                                  Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
                                                                                                                  €20.80Price
                                                                                                                  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
                                                                                                                          €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
                                                                                                                                  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
                                                                                                                                          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
                                                                                                                                                  Divergent boitier filtre assemblé Twingo R2
                                                                                                                                                      Optimize the air intake of your Renault Twingo R2 (195/205hp) with this official RENAULT SPORT air filter housing diverter . Developed for competition, this part with reference 7711167591 is essential for maximizing airflow and ensuring maximum engine power across the entire operating range. An indispensable addition for engine performance .
                                                                                                                                                      €511.63Price
                                                                                                                                                      Divergent boitier filtre assemblé Twingo R2
                                                                                                                                                          Optimize the air intake of your Renault Twingo R2 (195/205hp) with this official RENAULT SPORT air filter housing diverter . Developed for competition, this part with reference 7711167591 is essential for maximizing airflow and ensuring maximum engine power across the entire operating range. An indispensable addition for engine performance .
                                                                                                                                                          €511.63Price
                                                                                                                                                          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
                                                                                                                                                              Joint carter inférieur huile moteur Twingo RS y compris R1 et R2Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                                                                                                                  Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                                                                                                                  €95.21Price
                                                                                                                                                                  Joint carter inférieur huile moteur Twingo RS y compris R1 et R2Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                                                                                                                      Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                                                                                                                      €95.21Price
                                                                                                                                                                      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
                                                                                                                                                                              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
                                                                                                                                                                                      En Stock
                                                                                                                                                                                      €54.41 Price
                                                                                                                                                                                      En Stock
                                                                                                                                                                                      €54.41 Price
                                                                                                                                                                                      Cache bouchons arbres à cames moteur F4R
                                                                                                                                                                                          Cache bouchons arbres à cames moteur F4R Kit de 2 plaques de fermeture moteur 7711155481
                                                                                                                                                                                          €54.41Price
                                                                                                                                                                                          Cache bouchons arbres à cames moteur F4R
                                                                                                                                                                                              Cache bouchons arbres à cames moteur F4R Kit de 2 plaques de fermeture moteur 7711155481
                                                                                                                                                                                              €54.41Price
                                                                                                                                                                                              Durite Forge Admission Megane 2 RSForge Silicone Intake Hose Megane 2 RS
                                                                                                                                                                                                  Forge Motorsport Silicone Intake Hose for Renault Megane 2 RS Optimize the airflow to your Renault Megane 2 RS engine with this high-quality silicone intake hose from Forge Motorsport (ref: FMRMBHS). Available in several colors. Connects to the throttle body. Discover associated products at the bottom of the page.
                                                                                                                                                                                                  €44.99Price
                                                                                                                                                                                                  Durite Forge Admission Megane 2 RSForge Silicone Intake Hose Megane 2 RS
                                                                                                                                                                                                      Forge Motorsport Silicone Intake Hose for Renault Megane 2 RS Optimize the airflow to your Renault Megane 2 RS engine with this high-quality silicone intake hose from Forge Motorsport (ref: FMRMBHS). Available in several colors. Connects to the throttle body. Discover associated products at the bottom of the page.
                                                                                                                                                                                                      €44.99Price
                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                      €83.39 Price
                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                      €83.39 Price
                                                                                                                                                                                                      Boitier sortie eau sans calorstat Twingo R1 R2
                                                                                                                                                                                                          Boitier sortie eau sans calorstat Twingo R1 R2 Référence: 7711162845
                                                                                                                                                                                                          €83.39Price
                                                                                                                                                                                                          Boitier sortie eau sans calorstat Twingo R1 R2
                                                                                                                                                                                                              Boitier sortie eau sans calorstat Twingo R1 R2 Référence: 7711162845
                                                                                                                                                                                                              €83.39Price