Pensez à sélectionner votre vehicule pour limiter les resultats de recherche

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.

Active filters

  • Categories: Alimentation
  • Categories: Préparation intérieure
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
          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
                  Collection de 48 grains de réglage soupapes Twingo R2 195-205
                      Collection de 48 grains de réglage soupapes Twingo R2 195-205 7711167645
                      €831.29Price
                      Collection de 48 grains de réglage soupapes Twingo R2 195-205
                          Collection de 48 grains de réglage soupapes Twingo R2 195-205 7711167645
                          €831.29Price
                          Poulie accessoire filtrante (damper) Twingo RS, R1 et R2Poulie accessoire filtrante (damper) Twingo RS, R1 et R2
                              Poulie accessoire filtrante Twingo RS, R1 et R2 7711167301
                              €127.10Price
                              Poulie accessoire filtrante (damper) Twingo RS, R1 et R2Poulie accessoire filtrante (damper) Twingo RS, R1 et R2
                                  Poulie accessoire filtrante Twingo RS, R1 et R2 7711167301
                                  €127.10Price
                                  Vis de bielle origine
                                      Secure your performance engine's bottom end with this genuine RENAULT connecting rod bolt , sold individually. Engineered to withstand high RPMs, it is essential for the maintenance and personalization of Clio 2 RS , Clio 3 RS , Megane 2/3 RS , and Clio Williams ...
                                      €8.56Price
                                      Vis de bielle origine
                                          Secure your performance engine's bottom end with this genuine RENAULT connecting rod bolt , sold individually. Engineered to withstand high RPMs, it is essential for the maintenance and personalization of Clio 2 RS , Clio 3 RS , Megane 2/3 RS , and Clio Williams ...
                                          €8.56Price
                                          Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                              Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                              €14.95Price
                                              Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                                  Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                                  €14.95Price
                                                  Collection de Ségments (X82.70)
                                                      Ensure a perfect engine seal with this genuine Renault piston ring set . Specifically designed for the F4R and F4Rt engines found in the Clio 2 RS , Clio 3 RS , and Megane 3 RS , this kit is the crucial element for restoring...
                                                      €37.55Price
                                                      Collection de Ségments (X82.70)
                                                          Ensure a perfect engine seal with this genuine Renault piston ring set . Specifically designed for the F4R and F4Rt engines found in the Clio 2 RS , Clio 3 RS , and Megane 3 RS , this kit is the crucial element for restoring...
                                                          €37.55Price
                                                          En Stock
                                                          €70.25 Price
                                                          En Stock
                                                          €70.25 Price
                                                          Blue Crankshaft Half-Bearing Set
                                                              Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                                                              €70.25Price
                                                              Blue Crankshaft Half-Bearing Set
                                                                  Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                                                                  €70.25Price
                                                                  En Stock
                                                                  €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
                                                                          €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
                                                                                  €3.16 Price
                                                                                  En Stock
                                                                                  €3.16 Price
                                                                                  Clip maintien support linguet Twingo R2 195/205
                                                                                      Clip maintien support linguet Twingo R2 195/205 Référence: 7711167614
                                                                                      €3.16Price
                                                                                      Clip maintien support linguet Twingo R2 195/205
                                                                                          Clip maintien support linguet Twingo R2 195/205 Référence: 7711167614
                                                                                          €3.16Price
                                                                                          En Stock
                                                                                          €224.35 Price
                                                                                          En Stock
                                                                                          €224.35 Price
                                                                                          Kit Joint Refection moteur Origine Clio 2 RS
                                                                                              Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
                                                                                              €224.35Price
                                                                                              Kit Joint Refection moteur Origine Clio 2 RS
                                                                                                  Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
                                                                                                  €224.35Price
                                                                                                  En Stock
                                                                                                  €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
                                                                                                          Joint spy Vilebrequin côté distribution R21 turboRenault Crankshaft Oil Seal, Timing Side - Formula Renault / Renault 21 2L Turbo
                                                                                                              Renault Crankshaft Oil Seal, Timing Side - Formula Renault / R21 2L Turbo Ensure your engine's sealing with this original Renault crankshaft oil seal. Designed for Formula Renault and Renault 21 2L Turbo, it prevents oil leaks and guarantees your engine's longevity. Original Renault Part Crankshaft oil seal, timing side ...
                                                                                                              €20.87Price
                                                                                                              Joint spy Vilebrequin côté distribution R21 turboRenault Crankshaft Oil Seal, Timing Side - Formula Renault / Renault 21 2L Turbo
                                                                                                                  Renault Crankshaft Oil Seal, Timing Side - Formula Renault / R21 2L Turbo Ensure your engine's sealing with this original Renault crankshaft oil seal. Designed for Formula Renault and Renault 21 2L Turbo, it prevents oil leaks and guarantees your engine's longevity. Original Renault Part Crankshaft oil seal, timing side ...
                                                                                                                  €20.87Price
                                                                                                                  En Stock
                                                                                                                  €84.00 Price
                                                                                                                  En Stock
                                                                                                                  €84.00 Price
                                                                                                                  Original RENAULT Injector for Megane 3 RSOriginal RENAULT Injector for Megane 3 RS
                                                                                                                      Don't let your Renault Megane 3 RS lose its vigor! This original RENAULT injector is essential for maintaining your engine's optimal performance. Avoid excessive fuel consumption and a drop in power by choosing the quality and reliability of a part specifically designed for your sports vehicle. You can find associated complementary products (notably the...
                                                                                                                      €84.00Price
                                                                                                                      Original RENAULT Injector for Megane 3 RSOriginal RENAULT Injector for Megane 3 RS
                                                                                                                          Don't let your Renault Megane 3 RS lose its vigor! This original RENAULT injector is essential for maintaining your engine's optimal performance. Avoid excessive fuel consumption and a drop in power by choosing the quality and reliability of a part specifically designed for your sports vehicle. You can find associated complementary products (notably the...
                                                                                                                          €84.00Price
                                                                                                                          Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                                                                                                                              Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                                                                                                                              €33.94Price
                                                                                                                              Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                                                                                                                                  Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                                                                                                                                  €33.94Price
                                                                                                                                  En Stock
                                                                                                                                  €1,326.07 Price
                                                                                                                                  En Stock
                                                                                                                                  €1,326.07 Price
                                                                                                                                  AAC Admission loi 286TR2A2 Twingo R2 205
                                                                                                                                      AAC Admission loi 286TR2A2 Twingo R2 205 Référence: 7711167674
                                                                                                                                      €1,326.07Price
                                                                                                                                      AAC Admission loi 286TR2A2 Twingo R2 205
                                                                                                                                          AAC Admission loi 286TR2A2 Twingo R2 205 Référence: 7711167674
                                                                                                                                          €1,326.07Price
                                                                                                                                          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
                                                                                                                                                  Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65
                                                                                                                                                      Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65 Référence : 7711065381
                                                                                                                                                      €0.23Price
                                                                                                                                                      Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65
                                                                                                                                                          Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65 Référence : 7711065381
                                                                                                                                                          €0.23Price