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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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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
                                                                                                      €82.24 Price
                                                                                                      En Stock
                                                                                                      €82.24 Price
                                                                                                      Calorstat Megane 3 RS
                                                                                                          Ensure optimal thermal regulation for your Renault Megane 3 RS with this genuine Renault thermostat . With an opening temperature of 83°C , it is the key part to ensure your engine runs at the ideal temperature, preventing both overheating and undercooling. Don't compromise the health of your F4R engine.
                                                                                                          €82.24Price
                                                                                                          Calorstat Megane 3 RS
                                                                                                              Ensure optimal thermal regulation for your Renault Megane 3 RS with this genuine Renault thermostat . With an opening temperature of 83°C , it is the key part to ensure your engine runs at the ideal temperature, preventing both overheating and undercooling. Don't compromise the health of your F4R engine.
                                                                                                              €82.24Price
                                                                                                              En Stock
                                                                                                              €31.01 Price
                                                                                                              En Stock
                                                                                                              €31.01 Price
                                                                                                                  Kit colliers pour kit durites d'eau Forge Clio 2 RS
                                                                                                                  €31.01Price
                                                                                                                      Kit colliers pour kit durites d'eau Forge Clio 2 RS
                                                                                                                      €31.01Price
                                                                                                                      NGK Iridium Spark Plug - Renault Clio 4 RS (Trophy & Sport) (1 unit)NGK Iridium Spark Plug - Renault Clio 4 RS (Trophy & Sport) (1 unit)
                                                                                                                          Optimize the ignition of your 1.6 Turbo engine with the NGK Iridium spark plug for Clio 4 RS . Specifically designed for high-performance engines, it offers superior ignitability and exceptional thermal resistance. Sold individually, this premium spark...
                                                                                                                          €26.77Price
                                                                                                                          NGK Iridium Spark Plug - Renault Clio 4 RS (Trophy & Sport) (1 unit)NGK Iridium Spark Plug - Renault Clio 4 RS (Trophy & Sport) (1 unit)
                                                                                                                              Optimize the ignition of your 1.6 Turbo engine with the NGK Iridium spark plug for Clio 4 RS . Specifically designed for high-performance engines, it offers superior ignitability and exceptional thermal resistance. Sold individually, this premium spark...
                                                                                                                              €26.77Price
                                                                                                                              En Stock
                                                                                                                              €1.00 Price
                                                                                                                              En Stock
                                                                                                                              €1.00 Price
                                                                                                                              Collier serrage inox (durite) diametre 8-12mm
                                                                                                                                  Collier serrage inox (durite) diametre 8-12mm Vendu à l'unité
                                                                                                                                  €1.00Price
                                                                                                                                  Collier serrage inox (durite) diametre 8-12mm
                                                                                                                                      Collier serrage inox (durite) diametre 8-12mm Vendu à l'unité
                                                                                                                                      €1.00Price
                                                                                                                                      Tampon supérieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                                                                                                          Tampon supérieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                                                                                                          €7.96Price
                                                                                                                                          Tampon supérieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                                                                                                              Tampon supérieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                                                                                                              €7.96Price
                                                                                                                                              En Stock
                                                                                                                                              €402.96 Price
                                                                                                                                              En Stock
                                                                                                                                              €402.96 Price
                                                                                                                                              Convergent boitier filtre assemblé Twingo R2 195cvConvergent boitier filtre assemblé Twingo R2 195cv
                                                                                                                                                  Convergent boitier filtre assemblé Twingo R2 195cv
                                                                                                                                                  €402.96Price
                                                                                                                                                  Convergent boitier filtre assemblé Twingo R2 195cvConvergent boitier filtre assemblé Twingo R2 195cv
                                                                                                                                                      Convergent boitier filtre assemblé Twingo R2 195cv
                                                                                                                                                      €402.96Price
                                                                                                                                                      En Stock
                                                                                                                                                      €265.70 Price
                                                                                                                                                      En Stock
                                                                                                                                                      €265.70 Price
                                                                                                                                                      Fuel Gauge/Pump Module Clio 3 RS/R3/Cup - Original
                                                                                                                                                          The original Renault fuel gauge/pump module is an essential part to ensure a reliable and precise fuel supply on your Renault Clio 3 RS , Renault Clio R3 , and Renault Clio 3 X85 Cup . It guarantees accurate fuel level measurement and constant pressure, indispensable for optimal performance. We ship worldwide.
                                                                                                                                                          €265.70Price
                                                                                                                                                          Fuel Gauge/Pump Module Clio 3 RS/R3/Cup - Original
                                                                                                                                                              The original Renault fuel gauge/pump module is an essential part to ensure a reliable and precise fuel supply on your Renault Clio 3 RS , Renault Clio R3 , and Renault Clio 3 X85 Cup . It guarantees accurate fuel level measurement and constant pressure, indispensable for optimal performance. We ship worldwide.
                                                                                                                                                              €265.70Price
                                                                                                                                                              En Stock
                                                                                                                                                              €345.64 Price
                                                                                                                                                              En Stock
                                                                                                                                                              €345.64 Price
                                                                                                                                                              Conduit d'eau refroidissement turbo Megane 2 RSConduit d'eau refroidissement turbo Megane 2 RS
                                                                                                                                                                  Conduite d'eau refroidissement Turbo pour Megane 2 RS
                                                                                                                                                                  €345.64Price
                                                                                                                                                                  Conduit d'eau refroidissement turbo Megane 2 RSConduit d'eau refroidissement turbo Megane 2 RS
                                                                                                                                                                      Conduite d'eau refroidissement Turbo pour Megane 2 RS
                                                                                                                                                                      €345.64Price
                                                                                                                                                                      En Stock
                                                                                                                                                                      €82.45 Price
                                                                                                                                                                      En Stock
                                                                                                                                                                      €82.45 Price
                                                                                                                                                                      Durite d'eau sortie de radiateur Twingo RS R1 et R2
                                                                                                                                                                          Durite d'eau sortie de radiateur Twingo RS R1 et R2 Véritable produit d'origine
                                                                                                                                                                          €82.45Price
                                                                                                                                                                          Durite d'eau sortie de radiateur Twingo RS R1 et R2
                                                                                                                                                                              Durite d'eau sortie de radiateur Twingo RS R1 et R2 Véritable produit d'origine
                                                                                                                                                                              €82.45Price
                                                                                                                                                                              Cale admission porte injecteur Twingo 2 RS y compris R1 et R2 160cv
                                                                                                                                                                                  Cale admission porte injecteur Twingo 2 RS y compris R1 et R2 160cv Référence: 8200329496
                                                                                                                                                                                  €194.51Price
                                                                                                                                                                                  Cale admission porte injecteur Twingo 2 RS y compris R1 et R2 160cv
                                                                                                                                                                                      Cale admission porte injecteur Twingo 2 RS y compris R1 et R2 160cv Référence: 8200329496
                                                                                                                                                                                      €194.51Price
                                                                                                                                                                                      Joint cuivre de bouchon de rampe Twingo R1 et R2 et Clio R3
                                                                                                                                                                                          Joint cuivre de bouchon de rampe Twingo R1 et R2 et Clio R3 Référence: 7903062105
                                                                                                                                                                                          €4.16Price
                                                                                                                                                                                          Joint cuivre de bouchon de rampe Twingo R1 et R2 et Clio R3
                                                                                                                                                                                              Joint cuivre de bouchon de rampe Twingo R1 et R2 et Clio R3 Référence: 7903062105
                                                                                                                                                                                              €4.16Price