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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: Préparation intérieure
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
          Carter Huile Clio 3 RS - Megane 3 RS - Megane 2 RSOEM Renault Oil Pan - Clio 3 RS, Megane 2 RS, Megane 3 RS
              Don't gamble with your engine's lubrication. This genuine Renault OEM oil pan is the only component that guarantees a perfect seal and thermal resistance meeting the strict requirements of your Renault Clio 3 RS , Megane 2 RS , or Megane 3 RS . By choosing this certified part, you avoid micro-cracks and warping issues common in...
              €265.93Price
              Carter Huile Clio 3 RS - Megane 3 RS - Megane 2 RSOEM Renault Oil Pan - Clio 3 RS, Megane 2 RS, Megane 3 RS
                  Don't gamble with your engine's lubrication. This genuine Renault OEM oil pan is the only component that guarantees a perfect seal and thermal resistance meeting the strict requirements of your Renault Clio 3 RS , Megane 2 RS , or Megane 3 RS . By choosing this certified part, you avoid micro-cracks and warping issues common in...
                  €265.93Price
                  Jeu de Bougies NGK PFR7ZTG
                      Maximize your engine's combustion cycle with this set of NGK PFR7ZTG Spark Plugs . Specifically engineered for the high-performance demands of Renault Sport engines, including the Clio 3 RS and Megane 2 RS , these plugs...
                      €53.99Price
                      Jeu de Bougies NGK PFR7ZTG
                          Maximize your engine's combustion cycle with this set of NGK PFR7ZTG Spark Plugs . Specifically engineered for the high-performance demands of Renault Sport engines, including the Clio 3 RS and Megane 2 RS , these plugs...
                          €53.99Price
                          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
                                  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
                                          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
                                                  Jeu de 4 Fils de Bougies Magnecor Clio 1 16s / Williams
                                                      Kit de fils d'allumage MAGNECOR - Renault Clio 16S/Williams
                                                      €150.38Price
                                                      Jeu de 4 Fils de Bougies Magnecor Clio 1 16s / Williams
                                                          Kit de fils d'allumage MAGNECOR - Renault Clio 16S/Williams
                                                          €150.38Price
                                                          Dispo selon configuration
                                                          €6.00 Price
                                                          Dispo selon configuration
                                                          €6.00 Price
                                                          Tuyau de dépressionTuyau de dépression
                                                              Tuyau de depression de diamètre 4mm. Sert généralement pour l'installation de Dump Valve. Prix au metre
                                                              €6.00Price
                                                              Tuyau de dépressionTuyau de dépression
                                                                  Tuyau de depression de diamètre 4mm. Sert généralement pour l'installation de Dump Valve. Prix au metre
                                                                  €6.00Price
                                                                  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
                                                                          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
                                                                                  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
                                                                                          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
                                                                                                  Echangeur air/air Megane 3 RS et N4Genuine Renault Air/Air Intercooler for Mégane 3 RS and N4
                                                                                                      Don't accept any loss of performance for your Mégane 3 RS or Mégane N4 ! This strictly genuine Renault air/air intercooler is the cornerstone for maintaining your engine's power and reliability. Without it, your sports vehicle risks never reaching its full potential, especially in extreme conditions. Find complementary products at the bottom...
                                                                                                      €493.96Price
                                                                                                      Echangeur air/air Megane 3 RS et N4Genuine Renault Air/Air Intercooler for Mégane 3 RS and N4
                                                                                                          Don't accept any loss of performance for your Mégane 3 RS or Mégane N4 ! This strictly genuine Renault air/air intercooler is the cornerstone for maintaining your engine's power and reliability. Without it, your sports vehicle risks never reaching its full potential, especially in extreme conditions. Find complementary products at the bottom...
                                                                                                          €493.96Price
                                                                                                          En Stock
                                                                                                          €251.47 Price
                                                                                                          En Stock
                                                                                                          €251.47 Price
                                                                                                          Kit Joint Refection moteur Origine Megane 3 RSKit Joint Refection moteur Origine Megane 3 RS
                                                                                                              Ensemble de joints nécessaire au bon remontage du moteur de Megane 3 RS Véritable produit d'origine
                                                                                                              €251.47Price
                                                                                                              Kit Joint Refection moteur Origine Megane 3 RSKit Joint Refection moteur Origine Megane 3 RS
                                                                                                                  Ensemble de joints nécessaire au bon remontage du moteur de Megane 3 RS Véritable produit d'origine
                                                                                                                  €251.47Price
                                                                                                                  En Stock
                                                                                                                  €71.22 €79.33 Regular price -€8.11 off Price
                                                                                                                  En Stock
                                                                                                                  €71.22 €79.33 Regular price -€8.11 off Price
                                                                                                                  Jeu de 4 Bougies Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                      Set of 4 Original Renault Spark Plugs - Clio 2 RS / Gr N / X65 Cup Optimize the performance of your Renault Clio 2 RS with this set of 4 original Renault spark plugs. Essential for perfect ignition and optimal combustion. Compatibility: Clio 2 RS, Clio 2 Gr N, Clio 2 X65 Cup. Original Renault Part Set of 4 spark plugs ...
                                                                                                                      €71.22€79.33Regular price-€8.11 offPrice
                                                                                                                      Jeu de 4 Bougies Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                          Set of 4 Original Renault Spark Plugs - Clio 2 RS / Gr N / X65 Cup Optimize the performance of your Renault Clio 2 RS with this set of 4 original Renault spark plugs. Essential for perfect ignition and optimal combustion. Compatibility: Clio 2 RS, Clio 2 Gr N, Clio 2 X65 Cup. Original Renault Part Set of 4 spark plugs ...
                                                                                                                          €71.22€79.33Regular price-€8.11 offPrice
                                                                                                                          En Stock
                                                                                                                          €80.84 €115.49 Regular price -30% off Price
                                                                                                                          En Stock
                                                                                                                          €80.84 €115.49 Regular price -30% off Price
                                                                                                                          Jeu de Bougies Origine Megane 3 RS et N4
                                                                                                                              Do not let poor combustion stifle the potential of your F4RT engine. This set of 4 genuine Renault spark plugs is specifically calibrated to meet the extreme thermal demands of the Renault Megane 3 RS (250, 265, and 275 hp). By choosing these manufacturer-certified plugs, you avoid misfires under full load and protect your cylinders from the risks of...
                                                                                                                              €80.84€115.49Regular price-30% offPrice
                                                                                                                              Jeu de Bougies Origine Megane 3 RS et N4
                                                                                                                                  Do not let poor combustion stifle the potential of your F4RT engine. This set of 4 genuine Renault spark plugs is specifically calibrated to meet the extreme thermal demands of the Renault Megane 3 RS (250, 265, and 275 hp). By choosing these manufacturer-certified plugs, you avoid misfires under full load and protect your cylinders from the risks of...
                                                                                                                                  €80.84€115.49Regular price-30% offPrice
                                                                                                                                  Bague étanchéité arbre à cames Twingo R2Twingo RS (R1/R2) Exhaust Camshaft Oil Seal - Original
                                                                                                                                      The original Renault exhaust camshaft oil seal is an essential sealing part for your Renault Twingo RS, Twingo R1 , or Twingo R2 . It ensures a tight seal between the camshaft, cylinder head, and valve cover, preserving your engine's performance and reliability.
                                                                                                                                      €16.92Price
                                                                                                                                      Bague étanchéité arbre à cames Twingo R2Twingo RS (R1/R2) Exhaust Camshaft Oil Seal - Original
                                                                                                                                          The original Renault exhaust camshaft oil seal is an essential sealing part for your Renault Twingo RS, Twingo R1 , or Twingo R2 . It ensures a tight seal between the camshaft, cylinder head, and valve cover, preserving your engine's performance and reliability.
                                                                                                                                          €16.92Price
                                                                                                                                          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
                                                                                                                                                  €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
                                                                                                                                                          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
                                                                                                                                                              €198.25 Price
                                                                                                                                                              En Stock
                                                                                                                                                              €198.25 Price
                                                                                                                                                              Kit Joint Refection moteur Origine Clio 3 RS
                                                                                                                                                                  Ensemble de joints nécéssaire au bon remontage du moteur de Clio 3 RS Véritable produit d'origine
                                                                                                                                                                  €198.25Price
                                                                                                                                                                  Kit Joint Refection moteur Origine Clio 3 RS
                                                                                                                                                                      Ensemble de joints nécéssaire au bon remontage du moteur de Clio 3 RS Véritable produit d'origine
                                                                                                                                                                      €198.25Price
                                                                                                                                                                      Vis Fixation Volant Moteur
                                                                                                                                                                          Secure the transmission of power from your crankshaft to your clutch assembly with this heavy-duty Flywheel Fixing Bolt for the Renault Clio 16S, Williams, Clio 2 RS, and Clio 3 RS . This high-tensile specialist hardware is critical to enduring harsh rev matches and the...
                                                                                                                                                                          €5.64Price
                                                                                                                                                                          Vis Fixation Volant Moteur
                                                                                                                                                                              Secure the transmission of power from your crankshaft to your clutch assembly with this heavy-duty Flywheel Fixing Bolt for the Renault Clio 16S, Williams, Clio 2 RS, and Clio 3 RS . This high-tensile specialist hardware is critical to enduring harsh rev matches and the...
                                                                                                                                                                              €5.64Price
                                                                                                                                                                              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
                                                                                                                                                                                      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