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Engine Parts & Tuning Hardware

Unleash Your Engine's Power: Performance Parts & Accessories

At Optimiz Access, we offer a vast lineup of engine performance parts and accessories to boost the output of your sports vehicle or premium automobile. Optimize your engine for extreme performance and enjoy an exhilarating driving experience on both road and track.

Key benefits of engine tuning: substantial horsepower and torque gains for rapid acceleration, sharper throttle response, enhanced mechanical reliability using high-strength components, and tailored custom tuning suited to all engines.

Essential Products to Maximize Engine Performance

Discover all our precision-engineered components designed to increase efficiency and durability in your engine block:

  • Cold Air Intakes & Air Filtration – Performance sports filters and carbon intake systems for maximum air filling.
  • Intercoolers & Charge Coolers – Efficient intake air cooling to sustain consistent power output under heavy loads.
  • Forged Pistons & Connecting Rods – Heavy-duty internal components built to withstand extreme temperatures and boost pressures.
  • Turbos & Superchargers – Forced induction upgrades delivering significant power increases.
  • Ignition & Servicing – Competition spark plugs, high-output ignition coils, and high-performance oil filters.

Industry-Leading Benchmark Brands

We stock top tuning and motorsport manufacturers: Wagner Tuning, Forge Motorsport, Magnecor, Green Filter, BMC Filter, NGK, Vibra Technics, and Powerflex. We also supply OEM factory parts to ensure meticulous engine maintenance.

Why you should Choose Optimiz Access for Your Engine Upgrades

Since 2010, Optimiz Access has specialized in selecting top-tier engine components for the custom upgrading and maintenance of sports vehicles. Located in northern France (Hauts-de-France) — near Lille, Valenciennes, Cambrai, Arras, Seclin, Douai, and Saint-Quentin —, our expert technicians guide your hardware selection and provide professional installation in our workshop. We ensure strict quality control along with fast worldwide shipping.

Unleash Your Engine's Full Potential Today

Give your car the raw power and sharp response it deserves. Trust the expertise of Optimiz Access, select your engine performance parts today, and benefit from our fast dispatch.

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  • Categories: Alimentation
  • Categories: Circuit d'air
  • Categories: Support moteur
En Stock
€361.00 Price
En Stock
€361.00 Price
Kit Admisssion Forge Motorsport Megane 4 RSKit Admisssion Forge Motorsport Megane 4 RS
      Kit Admisssion Forge Motorsport Megane 4 RS Produit developpé dans le but de  - Garder des temperatures d'admission interessantes et les plus basses possibles - Ameliorer l'afflux d'air - Ameliorer l'esthetique de la baie moteur Apres de nombreux essais, les resultats obtenus sont + 15ch Ce gain peut etre superieur en associant ce kit...
      €361.00Price
      Kit Admisssion Forge Motorsport Megane 4 RSKit Admisssion Forge Motorsport Megane 4 RS
          Kit Admisssion Forge Motorsport Megane 4 RS Produit developpé dans le but de  - Garder des temperatures d'admission interessantes et les plus basses possibles - Ameliorer l'afflux d'air - Ameliorer l'esthetique de la baie moteur Apres de nombreux essais, les resultats obtenus sont + 15ch Ce gain peut etre superieur en associant ce kit...
          €361.00Price
          Upgrade conduit admission forge avec adaptateur Megane 4 RSUpgrade conduit admission forge avec adaptateur Megane 4 RS
              Upgrade conduit admission forge avec adaptateur Megane 4 RS. Produit developpé pour supprimer la restriction d'origine de l'admission. Bien qu'apportant deja un plus sur une voiture d'origine, ce produit a encore plus d'interet en cas de vehicule reprogrammé
              €187.01Price
              Upgrade conduit admission forge avec adaptateur Megane 4 RSUpgrade conduit admission forge avec adaptateur Megane 4 RS
                  Upgrade conduit admission forge avec adaptateur Megane 4 RS. Produit developpé pour supprimer la restriction d'origine de l'admission. Bien qu'apportant deja un plus sur une voiture d'origine, ce produit a encore plus d'interet en cas de vehicule reprogrammé
                  €187.01Price
                  En Stock
                  €32.92 Price
                  En Stock
                  €32.92 Price
                  Rampe injection Clio 2 RS 172 phase 2 et 182
                      Fuel injection rail Renault Clio 2 RS Phase 2 & 3 Give your Renault Clio 2 RS Phase 2 or 3 an optimum fuel supply with the genuine Renault injection rail! Designed for sports driving enthusiasts, this rail guarantees a constant and precise fuel flow, even at high engine speeds, for optimum performance and an unrivalled driving experience. ...
                      €32.92Price
                      Rampe injection Clio 2 RS 172 phase 2 et 182
                          Fuel injection rail Renault Clio 2 RS Phase 2 & 3 Give your Renault Clio 2 RS Phase 2 or 3 an optimum fuel supply with the genuine Renault injection rail! Designed for sports driving enthusiasts, this rail guarantees a constant and precise fuel flow, even at high engine speeds, for optimum performance and an unrivalled driving experience. ...
                          €32.92Price
                          Régulateur (membrane) pression gaz collecteur admission Clio 3 RS
                              Régulateur pression gaz carter Clio 3 RS
                              €61.60Price
                              Régulateur (membrane) pression gaz collecteur admission Clio 3 RS
                                  €61.60Price
                                  Durite Admission Clio 2 RSSilicone Air Induction Hose for Renault Clio 2 RS
                                      Stop letting a perished or cracked factory hose choke your Clio 2 RS engine. This reinforced silicone induction hose is a direct replacement for the OEM rubber part, which is notorious for collapsing under vacuum. Available in various colors for a subtle or race-inspired customization , it ensures...
                                      €69.00Price
                                      Durite Admission Clio 2 RSSilicone Air Induction Hose for Renault Clio 2 RS
                                          Stop letting a perished or cracked factory hose choke your Clio 2 RS engine. This reinforced silicone induction hose is a direct replacement for the OEM rubber part, which is notorious for collapsing under vacuum. Available in various colors for a subtle or race-inspired customization , it ensures...
                                          €69.00Price
                                          DeatschWerks 265L/H Fuel Pump (E85) for Renault Megane 2 RS
                                              Secure your engine build with the DeatschWerks DW65c fuel pump , delivering a high-performance flow rate of 265L/H . Specifically engineered for the Renault Megane 2 RS , this pump offers the major advantage of being 100% E85 compatible (ethanol), making it the perfect choice for flex-fuel conversions. Its compact design allows...
                                              €224.09Price
                                              DeatschWerks 265L/H Fuel Pump (E85) for Renault Megane 2 RS
                                                  Secure your engine build with the DeatschWerks DW65c fuel pump , delivering a high-performance flow rate of 265L/H . Specifically engineered for the Renault Megane 2 RS , this pump offers the major advantage of being 100% E85 compatible (ethanol), making it the perfect choice for flex-fuel conversions. Its compact design allows...
                                                  €224.09Price
                                                  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
                                                          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
                                                                  Durite d'admission d'air Forge Motorsport Mégane 3 RSDurite d'admission d'air Forge Motorsport Mégane 3 RS
                                                                      Durite d'admission d'air silicone Forge Motorsport qui se fixe en sortie de boite à air. Celle ce permet d'augmenter le débit d'air notamment grâce à un diamètre plus gros ainsi qu'une surface lisse interne. Se monte en lieu et place de celle d'origine Plusieurs couleurs disponibles
                                                                      €159.77Price
                                                                      Durite d'admission d'air Forge Motorsport Mégane 3 RSDurite d'admission d'air Forge Motorsport Mégane 3 RS
                                                                          Durite d'admission d'air silicone Forge Motorsport qui se fixe en sortie de boite à air. Celle ce permet d'augmenter le débit d'air notamment grâce à un diamètre plus gros ainsi qu'une surface lisse interne. Se monte en lieu et place de celle d'origine Plusieurs couleurs disponibles
                                                                          €159.77Price
                                                                          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
                                                                              €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
                                                                                      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
                                                                                              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
                                                                                                      €13.20 Price
                                                                                                      En Stock
                                                                                                      €13.20 Price
                                                                                                      Joint Plenum Clio 3 RSJoint Plenum Clio 3 RS
                                                                                                          Joint Plenum 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
                                                                                                          €13.20Price
                                                                                                          Joint Plenum Clio 3 RSJoint Plenum Clio 3 RS
                                                                                                              Joint Plenum 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
                                                                                                              €13.20Price
                                                                                                              Joint anti-usure jonction écope divergent Twingo R2
                                                                                                                  Joint anti-usure jonction écope divergent Twingo R2 Référence: 7711167594
                                                                                                                  €8.48Price
                                                                                                                  Joint anti-usure jonction écope divergent Twingo R2
                                                                                                                      Joint anti-usure jonction écope divergent Twingo R2 Référence: 7711167594
                                                                                                                      €8.48Price
                                                                                                                      En Stock
                                                                                                                      €10.57 €13.93 Regular price -€3.36 off Price
                                                                                                                      En Stock
                                                                                                                      €10.57 €13.93 Regular price -€3.36 off Price
                                                                                                                      Joint Collecteur Admission Clio 2 RS
                                                                                                                          Ensure vital engine sealing with this genuine Renault intake manifold gasket for the Clio 2 RS (172 and 182hp). This authentic component guarantees a perfect junction between the cylinder head and your manifold, preventing any parasitic air leaks that could degrade the performance of your F4R engine . Do not...
                                                                                                                          €10.57€13.93Regular price-€3.36 offPrice
                                                                                                                          Joint Collecteur Admission Clio 2 RS
                                                                                                                              Ensure vital engine sealing with this genuine Renault intake manifold gasket for the Clio 2 RS (172 and 182hp). This authentic component guarantees a perfect junction between the cylinder head and your manifold, preventing any parasitic air leaks that could degrade the performance of your F4R engine . Do not...
                                                                                                                              €10.57€13.93Regular price-€3.36 offPrice
                                                                                                                              En Stock
                                                                                                                              €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
                                                                                                                                              €17.45 Price
                                                                                                                                              En Stock
                                                                                                                                              €17.45 Price
                                                                                                                                              Support inférieur écope boitier filtre Twingo R2
                                                                                                                                                  Support inférieur écope boitier filtre Twingo R2 Référence: 7711167597
                                                                                                                                                  €17.45Price
                                                                                                                                                  Support inférieur écope boitier filtre Twingo R2
                                                                                                                                                      Support inférieur écope boitier filtre Twingo R2 Référence: 7711167597
                                                                                                                                                      €17.45Price
                                                                                                                                                      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
                                                                                                                                                              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
                                                                                                                                                                      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