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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
€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
          €149.05 €212.93 Regular price -30% off Price
          En Stock
          €149.05 €212.93 Regular price -30% off Price
          Jeu de Bougies Renault Clio 4 RS
              Set of 4 spark plugs for...
              €149.05€212.93Regular price-30% offPrice
              Jeu de Bougies Renault Clio 4 RS
                  Set of 4 spark plugs for...
                  €149.05€212.93Regular price-30% offPrice
                  Jeu de 4 Fils de Bougies Magnecor Clio 1 16s / Williams
                      Kit de fils d'allumage MAGNECOR - Renault Clio 16S/Williams
                      €150.38Price
                      Jeu de 4 Fils de Bougies Magnecor Clio 1 16s / Williams
                          Kit de fils d'allumage MAGNECOR - Renault Clio 16S/Williams
                          €150.38Price
                          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
                                  Jeu de Bougies NGK PFR7ZTG
                                      Maximize your engine's combustion cycle with this set of NGK PFR7ZTG Spark Plugs . Specifically engineered for the high-performance demands of Renault Sport engines, including the Clio 3 RS and Megane 2 RS , these plugs...
                                      €53.99Price
                                      Jeu de Bougies NGK PFR7ZTG
                                          Maximize your engine's combustion cycle with this set of NGK PFR7ZTG Spark Plugs . Specifically engineered for the high-performance demands of Renault Sport engines, including the Clio 3 RS and Megane 2 RS , these plugs...
                                          €53.99Price
                                          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
                                                  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
                                                          €80.84 €115.49 Regular price -30% off Price
                                                          En Stock
                                                          €80.84 €115.49 Regular price -30% off Price
                                                          Jeu de Bougies Origine Megane 3 RS et N4
                                                              Do not let poor combustion stifle the potential of your F4RT engine. This set of 4 genuine Renault spark plugs is specifically calibrated to meet the extreme thermal demands of the Renault Megane 3 RS (250, 265, and 275 hp). By choosing these manufacturer-certified plugs, you avoid misfires under full load and protect your cylinders from the risks of...
                                                              €80.84€115.49Regular price-30% offPrice
                                                              Jeu de Bougies Origine Megane 3 RS et N4
                                                                  Do not let poor combustion stifle the potential of your F4RT engine. This set of 4 genuine Renault spark plugs is specifically calibrated to meet the extreme thermal demands of the Renault Megane 3 RS (250, 265, and 275 hp). By choosing these manufacturer-certified plugs, you avoid misfires under full load and protect your cylinders from the risks of...
                                                                  €80.84€115.49Regular price-30% offPrice
                                                                  En Stock
                                                                  €36.05 Price
                                                                  En Stock
                                                                  €36.05 Price
                                                                  Jeu de Bougies Renault Clio 16S
                                                                      Jeu de Bougies Renault (fabriqué par NGK) (Vendu par 4) pour Clio 16S Produit d'origine Renault
                                                                      €36.05Price
                                                                      Jeu de Bougies Renault Clio 16S
                                                                          Jeu de Bougies Renault (fabriqué par NGK) (Vendu par 4) pour Clio 16S Produit d'origine Renault
                                                                          €36.05Price
                                                                          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
                                                                                          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
                                                                                              €689.93 Price
                                                                                              En Stock
                                                                                              €689.93 Price
                                                                                              Durite inférieure radiateur Clio 2 Rs et Cup
                                                                                                  Durite inférieure radiateur Clio 2 Cup Référence: 7711155360
                                                                                                  €689.93Price
                                                                                                  Durite inférieure radiateur Clio 2 Rs et Cup
                                                                                                      Durite inférieure radiateur Clio 2 Cup Référence: 7711155360
                                                                                                      €689.93Price
                                                                                                      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
                                                                                                              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
                                                                                                                      €57.84 Price
                                                                                                                      En Stock
                                                                                                                      €57.84 Price
                                                                                                                      Capteur PMH Clio 2 RS
                                                                                                                          Capteur PMH Clio 2 RS Selon votre modèle actuel de PMH, il est peut être nécessaire de prendre l'adaptateur proposé en bas de page en supplément.
                                                                                                                          €57.84Price
                                                                                                                          Capteur PMH Clio 2 RS
                                                                                                                              Capteur PMH Clio 2 RS Selon votre modèle actuel de PMH, il est peut être nécessaire de prendre l'adaptateur proposé en bas de page en supplément.
                                                                                                                              €57.84Price
                                                                                                                              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
                                                                                                                                      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
                                                                                                                                              €59.00 €69.41 Regular price -15% off Price
                                                                                                                                              En Stock
                                                                                                                                              €59.00 €69.41 Regular price -15% off Price
                                                                                                                                              Fuel Injector Genuine Renault Clio 2 RS / Gr.N / CupFuel Injector Genuine Renault Clio 2 RS / Gr.N / Cup
                                                                                                                                                  Protect your engine's health with this genuine Renault injector specifically designed for the Clio 2 RS . This authentic part features the ITG M60 marking, guaranteeing optimal fuel atomization for high-performance 2.0 16v engines. Brand new and original Renault ...
                                                                                                                                                  €59.00€69.41Regular price-15% offPrice
                                                                                                                                                  Fuel Injector Genuine Renault Clio 2 RS / Gr.N / CupFuel Injector Genuine Renault Clio 2 RS / Gr.N / Cup
                                                                                                                                                      Protect your engine's health with this genuine Renault injector specifically designed for the Clio 2 RS . This authentic part features the ITG M60 marking, guaranteeing optimal fuel atomization for high-performance 2.0 16v engines. Brand new and original Renault ...
                                                                                                                                                      €59.00€69.41Regular price-15% offPrice
                                                                                                                                                      En Stock
                                                                                                                                                      €122.62 Price
                                                                                                                                                      En Stock
                                                                                                                                                      €122.62 Price
                                                                                                                                                      Batterie sèche 12V-24Ah
                                                                                                                                                          Batterie sèche 12V-24Ah Référence: 7711127895 Durée de vie en floating jusqu'à 5 ans Batterie VRLA d'usage général Grilles plomb-calcium pour une durée de vie améliorée Construction en fibres de verre microporeuses sans acide libre Recombinaison de gaz Fabriqué dans le monde entier Bonne récupération d'une décharge...
                                                                                                                                                          €122.62Price
                                                                                                                                                          Batterie sèche 12V-24Ah
                                                                                                                                                              Batterie sèche 12V-24Ah Référence: 7711127895 Durée de vie en floating jusqu'à 5 ans Batterie VRLA d'usage général Grilles plomb-calcium pour une durée de vie améliorée Construction en fibres de verre microporeuses sans acide libre Recombinaison de gaz Fabriqué dans le monde entier Bonne récupération d'une décharge...
                                                                                                                                                              €122.62Price
                                                                                                                                                              En Stock
                                                                                                                                                              €50.86 Price
                                                                                                                                                              En Stock
                                                                                                                                                              €50.86 Price
                                                                                                                                                              Manchon pipe de remplissage réservoir Twingo 2 RS
                                                                                                                                                                  Manchon pipe de remplissage réservoir Twingo 2 RS
                                                                                                                                                                  €50.86Price
                                                                                                                                                                  Manchon pipe de remplissage réservoir Twingo 2 RS
                                                                                                                                                                      Manchon pipe de remplissage réservoir Twingo 2 RS
                                                                                                                                                                      €50.86Price
                                                                                                                                                                      En Stock
                                                                                                                                                                      €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
                                                                                                                                                                              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
                                                                                                                                                                                      €88.16 Price
                                                                                                                                                                                      En Stock
                                                                                                                                                                                      €88.16 Price
                                                                                                                                                                                      Bougies Iridium Denso Megane RS
                                                                                                                                                                                          Denso Iridium Spark Plugs for Mégane RS - Maximum Performance and Reliability Boost your Mégane RS's performance with Denso Iridium spark plugs, designed to deliver a stronger spark and more efficient combustion. With their iridium electrode, these spark plugs ensure better engine responsiveness, optimized fuel consumption, and increased longevity compared to standard plugs. ...
                                                                                                                                                                                          €88.16Price
                                                                                                                                                                                          Bougies Iridium Denso Megane RS
                                                                                                                                                                                              Denso Iridium Spark Plugs for Mégane RS - Maximum Performance and Reliability Boost your Mégane RS's performance with Denso Iridium spark plugs, designed to deliver a stronger spark and more efficient combustion. With their iridium electrode, these spark plugs ensure better engine responsiveness, optimized fuel consumption, and increased longevity compared to standard plugs. ...
                                                                                                                                                                                              €88.16Price
                                                                                                                                                                                              En Stock
                                                                                                                                                                                              €71.22 €79.33 Regular price -€8.11 off Price
                                                                                                                                                                                              En Stock
                                                                                                                                                                                              €71.22 €79.33 Regular price -€8.11 off Price
                                                                                                                                                                                              Jeu de 4 Bougies Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                                                                                  Set of 4 Original Renault Spark Plugs - Clio 2 RS / Gr N / X65 Cup Optimize the performance of your Renault Clio 2 RS with this set of 4 original Renault spark plugs. Essential for perfect ignition and optimal combustion. Compatibility: Clio 2 RS, Clio 2 Gr N, Clio 2 X65 Cup. Original Renault Part Set of 4 spark plugs ...
                                                                                                                                                                                                  €71.22€79.33Regular price-€8.11 offPrice
                                                                                                                                                                                                  Jeu de 4 Bougies Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                                                                                      Set of 4 Original Renault Spark Plugs - Clio 2 RS / Gr N / X65 Cup Optimize the performance of your Renault Clio 2 RS with this set of 4 original Renault spark plugs. Essential for perfect ignition and optimal combustion. Compatibility: Clio 2 RS, Clio 2 Gr N, Clio 2 X65 Cup. Original Renault Part Set of 4 spark plugs ...
                                                                                                                                                                                                      €71.22€79.33Regular price-€8.11 offPrice