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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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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
          €30.64 Price
          En Stock
          €30.64 Price
          Joint tournant (joint spy vilebrequin coté volant moteur)
              The original Renault flywheel side oil seal is an essential part to ensure engine sealing for your Renault Clio 2 RS, Gr N, X65 Cup, Clio 3 RS, R3, X85 Cup, Mégane 2 RS, and Mégane 3 RS . Prevent oil leaks and maintain your vehicle's performance with this authentic replacement part.
              €30.64Price
              Joint tournant (joint spy vilebrequin coté volant moteur)
                  The original Renault flywheel side oil seal is an essential part to ensure engine sealing for your Renault Clio 2 RS, Gr N, X65 Cup, Clio 3 RS, R3, X85 Cup, Mégane 2 RS, and Mégane 3 RS . Prevent oil leaks and maintain your vehicle's performance with this authentic replacement part.
                  €30.64Price
                  Outil de blocage Poulie Arbres à cames F4R Clio RS Megane RSOutil de blocage Poulie Arbres à cames F4R Clio RS Megane RS
                      Véritable outil d'origine pour le blocage des poulies d'arbres à cames nécessaire pour le remplacement de la distribution pour les moteurs F4R de Clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS. Kit Spécifique au F4R Renault Sport
                      €139.02Price
                      Outil de blocage Poulie Arbres à cames F4R Clio RS Megane RSOutil de blocage Poulie Arbres à cames F4R Clio RS Megane RS
                          Véritable outil d'origine pour le blocage des poulies d'arbres à cames nécessaire pour le remplacement de la distribution pour les moteurs F4R de Clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS. Kit Spécifique au F4R Renault Sport
                          €139.02Price
                          En Stock
                          €99.36 Price
                          En Stock
                          €99.36 Price
                          Coussinets bielle ( X48 ) Clio 2 RS Mégane 2 RSCoussinets bielle ( X48 ) Clio 2 RS Mégane 2 RS
                              Coussinets bielle ( X=48 ) Le prix est pour 8 Produit remplacé, vous trouverez le produit de remplacement ci dessous ⬇️
                              €99.36Price
                              Coussinets bielle ( X48 ) Clio 2 RS Mégane 2 RSCoussinets bielle ( X48 ) Clio 2 RS Mégane 2 RS
                                  Coussinets bielle ( X=48 ) Le prix est pour 8 Produit remplacé, vous trouverez le produit de remplacement ci dessous ⬇️
                                  €99.36Price
                                  En Stock
                                  €59.00 €69.41 Regular price -15% off Price
                                  En Stock
                                  €59.00 €69.41 Regular price -15% off Price
                                  Fuel Injector Genuine Renault Clio 2 RS / Gr.N / CupFuel Injector Genuine Renault Clio 2 RS / Gr.N / Cup
                                      Protect your engine's health with this genuine Renault injector specifically designed for the Clio 2 RS . This authentic part features the ITG M60 marking, guaranteeing optimal fuel atomization for high-performance 2.0 16v engines. Brand new and original Renault ...
                                      €59.00€69.41Regular price-15% offPrice
                                      Fuel Injector Genuine Renault Clio 2 RS / Gr.N / CupFuel Injector Genuine Renault Clio 2 RS / Gr.N / Cup
                                          Protect your engine's health with this genuine Renault injector specifically designed for the Clio 2 RS . This authentic part features the ITG M60 marking, guaranteeing optimal fuel atomization for high-performance 2.0 16v engines. Brand new and original Renault ...
                                          €59.00€69.41Regular price-15% offPrice
                                          En Stock
                                          €1.32 Price
                                          En Stock
                                          €1.32 Price
                                          Joint Vidange Boite diam 16
                                              Gearbox Drain Plug Washer – 16 mm The Renault drain plug washer, reference 7703062062 , is a sealing component designed to help prevent oil leaks at a compatible drain...
                                              €1.32Price
                                              Joint Vidange Boite diam 16
                                                  Gearbox Drain Plug Washer – 16 mm The Renault drain plug washer, reference 7703062062 , is a sealing component designed to help prevent oil leaks at a compatible drain...
                                                  €1.32Price
                                                  Joint répartiteur admission ( plenum ) Twingo 2 RS, R1 et R2
                                                      Joint répartiteur admission Twingo RS R1 et R2
                                                      €26.36Price
                                                      Joint répartiteur admission ( plenum ) Twingo 2 RS, R1 et R2
                                                          Joint répartiteur admission Twingo RS R1 et R2
                                                          €26.36Price
                                                          En Stock
                                                          €178.04 Price
                                                          En Stock
                                                          €178.04 Price
                                                          Pompe à Essence Clio 2 RS et X65 Cup
                                                              Fuel Gauge/Pump Module Renault Clio 2 RS (Original) Original Renault fuel gauge/pump module for Clio 2 RS Phase 2/3 (without regulator on rail) and Clio 2 X65 Cup. Ensures reliable fuel supply. Discover the compatible fixing ring and gasket at the bottom of the page.
                                                              €178.04Price
                                                              Pompe à Essence Clio 2 RS et X65 Cup
                                                                  Fuel Gauge/Pump Module Renault Clio 2 RS (Original) Original Renault fuel gauge/pump module for Clio 2 RS Phase 2/3 (without regulator on rail) and Clio 2 X65 Cup. Ensures reliable fuel supply. Discover the compatible fixing ring and gasket at the bottom of the page.
                                                                  €178.04Price
                                                                  En Stock
                                                                  €90.50 €120.66 Regular price -25% off Price
                                                                  En Stock
                                                                  €90.50 €120.66 Regular price -25% off Price
                                                                  Huile moteur HTX 3823 0W20 4LHuile moteur HTX 3823 0W20 4L
                                                                      Huile moteur HTX 3823 0W20 4L Référence: 7711167580
                                                                      €90.50€120.66Regular price-25% offPrice
                                                                      Huile moteur HTX 3823 0W20 4LHuile moteur HTX 3823 0W20 4L
                                                                          Huile moteur HTX 3823 0W20 4L Référence: 7711167580
                                                                          €90.50€120.66Regular price-25% 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
                                                                                  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
                                                                                          Dispo selon configuration
                                                                                          €61.15 €71.94 Regular price -15% off Price
                                                                                          Dispo selon configuration
                                                                                          €61.15 €71.94 Regular price -15% off Price
                                                                                          Kit Vidange Elf SXRKit Vidange Elf SXR
                                                                                            • Pack
                                                                                            Kit Vidange ELF SXR, filtre à huile Renault pour Clio 2 RS, Clio 3 RS et Megane 2 RS
                                                                                            €61.15€71.94Regular price-15% offPrice
                                                                                            Kit Vidange Elf SXRKit Vidange Elf SXR
                                                                                              • Pack
                                                                                              Kit Vidange ELF SXR, filtre à huile Renault pour Clio 2 RS, Clio 3 RS et Megane 2 RS
                                                                                              €61.15€71.94Regular price-15% offPrice
                                                                                              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
                                                                                                      €129.34 Price
                                                                                                      En Stock
                                                                                                      €129.34 Price
                                                                                                      Carter de protection Courroie de distribution Clio RS
                                                                                                          Pièce empêchant le passage de la courroie d'accessoires dans la distribution Compatible avec Clio 2 RS, Clio 3 RS La mise en place sur Clio 2 nécessite une legere découpe du carter en plastique  Fourni sans les vis, veuillez consulter les produits associés en bas de page
                                                                                                          €129.34Price
                                                                                                          Carter de protection Courroie de distribution Clio RS
                                                                                                              Pièce empêchant le passage de la courroie d'accessoires dans la distribution Compatible avec Clio 2 RS, Clio 3 RS La mise en place sur Clio 2 nécessite une legere découpe du carter en plastique  Fourni sans les vis, veuillez consulter les produits associés en bas de page
                                                                                                              €129.34Price
                                                                                                              Joint de vidangeDrain Plug Seal Clio 4 RS / Mégane RS / Alpine A110
                                                                                                                  Renault Sport and Alpine Engine Drain Plug Seal The engine drain plug seal , reference 1102601M02 , is a sealing component used at the engine oil drain...
                                                                                                                  €2.92Price
                                                                                                                  Joint de vidangeDrain Plug Seal Clio 4 RS / Mégane RS / Alpine A110
                                                                                                                      Renault Sport and Alpine Engine Drain Plug Seal The engine drain plug seal , reference 1102601M02 , is a sealing component used at the engine oil drain...
                                                                                                                      €2.92Price
                                                                                                                      En Stock
                                                                                                                      €8.57 Price
                                                                                                                      En Stock
                                                                                                                      €8.57 Price
                                                                                                                      Joint de décanteur Clio 2 RS - Clio 3 RS
                                                                                                                          Joint de décanteur Clio 2 RS et Clio 3 RS Joint se trouvant entre le décanteur et le plenum
                                                                                                                          €8.57Price
                                                                                                                          Joint de décanteur Clio 2 RS - Clio 3 RS
                                                                                                                              Joint de décanteur Clio 2 RS et Clio 3 RS Joint se trouvant entre le décanteur et le plenum
                                                                                                                              €8.57Price
                                                                                                                              Dispo selon configuration
                                                                                                                              €63.30 €74.47 Regular price -15% off Price
                                                                                                                              Dispo selon configuration
                                                                                                                              €63.30 €74.47 Regular price -15% off Price
                                                                                                                              Complete Engine Oil Change Kit for Renault Megane 3 RS (ELF 5W40 Oil & Renault Filter)Complete Engine Oil Change Kit for Renault Megane 3 RS (ELF 5W40 Oil & Renault Filter)
                                                                                                                                • Pack
                                                                                                                                Ensure the longevity and performance of your Renault Megane 3 RS with our complete oil change kit . It includes 6 liters of ELF SRX 5W40 oil (the oil recommended by the manufacturer during vehicle development), a genuine Renault oil filter , and the drain plug gasket . Essential for optimal...
                                                                                                                                €63.30€74.47Regular price-15% offPrice
                                                                                                                                Complete Engine Oil Change Kit for Renault Megane 3 RS (ELF 5W40 Oil & Renault Filter)Complete Engine Oil Change Kit for Renault Megane 3 RS (ELF 5W40 Oil & Renault Filter)
                                                                                                                                  • Pack
                                                                                                                                  Ensure the longevity and performance of your Renault Megane 3 RS with our complete oil change kit . It includes 6 liters of ELF SRX 5W40 oil (the oil recommended by the manufacturer during vehicle development), a genuine Renault oil filter , and the drain plug gasket . Essential for optimal...
                                                                                                                                  €63.30€74.47Regular price-15% offPrice
                                                                                                                                  Kit Joint Spy Arbres à Cames + Vis de Poulie Clio 2 RS
                                                                                                                                      Kit Joint Spy Arbres à Cames + Vis de Poulie Kit indispensable pour proceder au changement de la distribution sur Clio 2 RS
                                                                                                                                      €54.58Price
                                                                                                                                      Kit Joint Spy Arbres à Cames + Vis de Poulie Clio 2 RS
                                                                                                                                          Kit Joint Spy Arbres à Cames + Vis de Poulie Kit indispensable pour proceder au changement de la distribution sur Clio 2 RS
                                                                                                                                          €54.58Price
                                                                                                                                          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
                                                                                                                                                  €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
                                                                                                                                                          ELF SXR 5w40 Motor Oil (2L) - Renault, Sport & PremiumELF SXR 5w40 Motor Oil (2L) - Renault, Sport & Premium
                                                                                                                                                              Preserve the health of your high-output engine block with the premium ELF Evolution 900 SXR 5w40 Motor Oil in a convenient 2-Litre bottle . This factory-grade synthetic technology lubricant is engineered to provide maximum anti-wear protection and optimal lubrication under...
                                                                                                                                                              €20.15Price
                                                                                                                                                              ELF SXR 5w40 Motor Oil (2L) - Renault, Sport & PremiumELF SXR 5w40 Motor Oil (2L) - Renault, Sport & Premium
                                                                                                                                                                  Preserve the health of your high-output engine block with the premium ELF Evolution 900 SXR 5w40 Motor Oil in a convenient 2-Litre bottle . This factory-grade synthetic technology lubricant is engineered to provide maximum anti-wear protection and optimal lubrication under...
                                                                                                                                                                  €20.15Price
                                                                                                                                                                  En Stock
                                                                                                                                                                  €12.00 Price
                                                                                                                                                                  En Stock
                                                                                                                                                                  €12.00 Price
                                                                                                                                                                  Bidon de 2 L ELF 700 ST 10w40Bidon de 2 L ELF 700 ST 10w40
                                                                                                                                                                      Bidon de 2L de ELF 700 ST 10W40 Huile Préconisé par Renault l'entretien de la gamme RS comprenant Clio 16S et Williams, Twingo RS, Clio RS, Megane RS..
                                                                                                                                                                      €12.00Price
                                                                                                                                                                      Bidon de 2 L ELF 700 ST 10w40Bidon de 2 L ELF 700 ST 10w40
                                                                                                                                                                          Bidon de 2L de ELF 700 ST 10W40 Huile Préconisé par Renault l'entretien de la gamme RS comprenant Clio 16S et Williams, Twingo RS, Clio RS, Megane RS..
                                                                                                                                                                          €12.00Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €66.99 Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €66.99 Price
                                                                                                                                                                          Injecteur Clio 3 RS et X85 Cup
                                                                                                                                                                              The original Renault injector is an essential part to ensure precise fuel injection in the engine of your Renault Clio 3 RS and Renault Clio 3 X85 Cup . It ensures optimal combustion and reliable engine performance.
                                                                                                                                                                              €66.99Price
                                                                                                                                                                              Injecteur Clio 3 RS et X85 Cup
                                                                                                                                                                                  The original Renault injector is an essential part to ensure precise fuel injection in the engine of your Renault Clio 3 RS and Renault Clio 3 X85 Cup . It ensures optimal combustion and reliable engine performance.
                                                                                                                                                                                  €66.99Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €112.69 Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €112.69 Price
                                                                                                                                                                                  Vis de Culasse (x10)
                                                                                                                                                                                      Ensemble de vis de culasse pour Clio 3 RS, Megane 2 RS, Megane 3 RS, Clio 2 RS et Megane 2 RS Véritable produit d'origine
                                                                                                                                                                                      €112.69Price
                                                                                                                                                                                      Vis de Culasse (x10)
                                                                                                                                                                                          Ensemble de vis de culasse pour Clio 3 RS, Megane 2 RS, Megane 3 RS, Clio 2 RS et Megane 2 RS Véritable produit d'origine
                                                                                                                                                                                          €112.69Price
                                                                                                                                                                                          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
                                                                                                                                                                                                  Dispo selon configuration
                                                                                                                                                                                                  €67.23 €74.70 Regular price -10% off Price
                                                                                                                                                                                                  Dispo selon configuration
                                                                                                                                                                                                  €67.23 €74.70 Regular price -10% off Price
                                                                                                                                                                                                  Kit Vidange Elf SXR 5w40 Clio 4 RS - Megane 4 GTKit Vidange Elf SXR 5w40 Clio 4 RS - Megane 4 GT
                                                                                                                                                                                                    • Pack
                                                                                                                                                                                                    Kit Vidange Elf Evolution SXR comprenant 3 bidons de 2 Litres d'huile Elf Evolution SXR 5w40 (préconisation Constructeur), 1 filtre à huile Renault et 1 joint de vidange
                                                                                                                                                                                                    €67.23€74.70Regular price-10% offPrice
                                                                                                                                                                                                    Kit Vidange Elf SXR 5w40 Clio 4 RS - Megane 4 GTKit Vidange Elf SXR 5w40 Clio 4 RS - Megane 4 GT
                                                                                                                                                                                                      • Pack
                                                                                                                                                                                                      Kit Vidange Elf Evolution SXR comprenant 3 bidons de 2 Litres d'huile Elf Evolution SXR 5w40 (préconisation Constructeur), 1 filtre à huile Renault et 1 joint de vidange
                                                                                                                                                                                                      €67.23€74.70Regular price-10% offPrice
                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                      €43.02 Price
                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                      €43.02 Price
                                                                                                                                                                                                      Joint Spy Vilebrequin coté distribution
                                                                                                                                                                                                          The original Renault crankshaft oil seal, timing side is an essential part to ensure crankshaft sealing in the engines of your Renault Clio 2 RS , Clio 2 GR N , Clio 2 X65 Cup , Clio 3 RS , Clio R3 , Clio 3 X85 Cup , Mégane 2 RS , Mégane 3 RS , and...
                                                                                                                                                                                                          €43.02Price
                                                                                                                                                                                                          Joint Spy Vilebrequin coté distribution
                                                                                                                                                                                                              The original Renault crankshaft oil seal, timing side is an essential part to ensure crankshaft sealing in the engines of your Renault Clio 2 RS , Clio 2 GR N , Clio 2 X65 Cup , Clio 3 RS , Clio R3 , Clio 3 X85 Cup , Mégane 2 RS , Mégane 3 RS , and...
                                                                                                                                                                                                              €43.02Price