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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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Pige de Calage Vilebrequin F4R Clio RS Megane RS
      Prevent catastrophic engine failure during your timing belt replacement with this professional-grade Crankshaft Timing Pin F4R Clio RS Megane RS . Engineered specifically to match the official factory blueprints of Renault Sport power units, this high-tensile steel tool...
      €41.40Price
      Pige de Calage Vilebrequin F4R Clio RS Megane RS
          Prevent catastrophic engine failure during your timing belt replacement with this professional-grade Crankshaft Timing Pin F4R Clio RS Megane RS . Engineered specifically to match the official factory blueprints of Renault Sport power units, this high-tensile steel tool...
          €41.40Price
          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
                  €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
                          En Stock
                          €19.30 €25.79 Regular price -€6.49 off Price
                          En Stock
                          €19.30 €25.79 Regular price -€6.49 off Price
                          Courroie accessoire Twingo RS et R1
                              Don't risk an unexpected breakdown! This summary concerns the Genuine RENAULT Accessory Belt for the Renault Twingo 2 RS and Renault Wind 1.6 16v models. This is an essential part for the smooth running of your sports engine. Failing to replace it in time risks costly damage. ...
                              €19.30€25.79Regular price-€6.49 offPrice
                              Courroie accessoire Twingo RS et R1
                                  Don't risk an unexpected breakdown! This summary concerns the Genuine RENAULT Accessory Belt for the Renault Twingo 2 RS and Renault Wind 1.6 16v models. This is an essential part for the smooth running of your sports engine. Failing to replace it in time risks costly damage. ...
                                  €19.30€25.79Regular price-€6.49 offPrice
                                  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
                                      €7.27 €8.50 Regular price -€1.23 off Price
                                      En Stock
                                      €7.27 €8.50 Regular price -€1.23 off Price
                                      Genuine Renault Oil Filter - Twingo 2 RS, Clio RS, Megane RS, WilliamsGenuine Renault Oil Filter - Twingo 2 RS, Clio RS, Megane RS, Williams
                                        • On sale!
                                        The oil filter is the guardian of your engine's cleanliness. This genuine Renault product is specifically designed for the engines of the Twingo 2 RS, Clio 2 RS, Clio 3 RS, Megane 2 RS, Clio 16S , and Clio Williams . It is essential for a successful oil change , ensuring optimal filtration of impurities and protecting internal components from premature wear.
                                        €7.27€8.50Regular price-€1.23 offPrice
                                        Genuine Renault Oil Filter - Twingo 2 RS, Clio RS, Megane RS, WilliamsGenuine Renault Oil Filter - Twingo 2 RS, Clio RS, Megane RS, Williams
                                          • On sale!
                                          The oil filter is the guardian of your engine's cleanliness. This genuine Renault product is specifically designed for the engines of the Twingo 2 RS, Clio 2 RS, Clio 3 RS, Megane 2 RS, Clio 16S , and Clio Williams . It is essential for a successful oil change , ensuring optimal filtration of impurities and protecting internal components from premature wear.
                                          €7.27€8.50Regular price-€1.23 offPrice
                                          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
                                                  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
                                                          Motul 300V Competition 10W40 2L Engine Oil - Sports Cars
                                                              Motul 300V Competition Engine Oil 10W40 2L - Performance and Protection for Classic and Modern Sports Cars Don't let the age of your sports car impact its performance. engine oil is specially formulated to offer optimal protection and increased performance, suitable for demanding classic and modern engines. 2-liter can. <p...
                                                              €39.99Price
                                                              Motul 300V Competition 10W40 2L Engine Oil - Sports Cars
                                                                  Motul 300V Competition Engine Oil 10W40 2L - Performance and Protection for Classic and Modern Sports Cars Don't let the age of your sports car impact its performance. engine oil is specially formulated to offer optimal protection and increased performance, suitable for demanding classic and modern engines. 2-liter can. <p...
                                                                  €39.99Price
                                                                  En Stock
                                                                  €59.00 €69.41 Regular price -15% off Price
                                                                  En Stock
                                                                  €59.00 €69.41 Regular price -15% off Price
                                                                  Fuel Injector Genuine Renault Clio 2 RS / Gr.N / CupFuel Injector Genuine Renault Clio 2 RS / Gr.N / Cup
                                                                      Protect your engine's health with this genuine Renault injector specifically designed for the Clio 2 RS . This authentic part features the ITG M60 marking, guaranteeing optimal fuel atomization for high-performance 2.0 16v engines. Brand new and original Renault ...
                                                                      €59.00€69.41Regular price-15% offPrice
                                                                      Fuel Injector Genuine Renault Clio 2 RS / Gr.N / CupFuel Injector Genuine Renault Clio 2 RS / Gr.N / Cup
                                                                          Protect your engine's health with this genuine Renault injector specifically designed for the Clio 2 RS . This authentic part features the ITG M60 marking, guaranteeing optimal fuel atomization for high-performance 2.0 16v engines. Brand new and original Renault ...
                                                                          €59.00€69.41Regular price-15% offPrice
                                                                          Pompe à eau Origine Renault Clio 3 RS - Megane 2 RS - Megane 3 RSGenuine OEM Water Pump - Renault Clio 3 RS / Megane 2/3 RS
                                                                              Safeguard the mechanical reliability and thermal efficiency of your high-performance engine with the Genuine Renault Sport Water Pump for F4R and F4Rt engines . This authentic factory replacement component is essential to ensure optimum coolant circulation under intense road...
                                                                              €117.43Price
                                                                              Pompe à eau Origine Renault Clio 3 RS - Megane 2 RS - Megane 3 RSGenuine OEM Water Pump - Renault Clio 3 RS / Megane 2/3 RS
                                                                                  Safeguard the mechanical reliability and thermal efficiency of your high-performance engine with the Genuine Renault Sport Water Pump for F4R and F4Rt engines . This authentic factory replacement component is essential to ensure optimum coolant circulation under intense road...
                                                                                  €117.43Price
                                                                                  Raccord Pompe à essence Clio GrN
                                                                                      Renault Clio 2 Group N Fuel Pump Connector , a component intended for the fuel supply system of vehicles configured for Group N applications. Vehicle brand: Renault Model: Clio 2 Application: Group N Part type: Fuel pump connector ...
                                                                                      €50.45Price
                                                                                      Raccord Pompe à essence Clio GrN
                                                                                          Renault Clio 2 Group N Fuel Pump Connector , a component intended for the fuel supply system of vehicles configured for Group N applications. Vehicle brand: Renault Model: Clio 2 Application: Group N Part type: Fuel pump connector ...
                                                                                          €50.45Price
                                                                                          En Stock
                                                                                          €8.52 €11.03 Regular price -€2.51 off Price
                                                                                          En Stock
                                                                                          €8.52 €11.03 Regular price -€2.51 off Price
                                                                                          Filtre à huile Megane 3 RSFiltre à huile Megane 3 RS
                                                                                              The Mégane 3 RS oil filter provides optimal protection and performance for your engine, ensuring efficient filtration of impurities and long-lasting durability , even in the most demanding conditions.
                                                                                              €8.52€11.03Regular price-€2.51 offPrice
                                                                                              Filtre à huile Megane 3 RSFiltre à huile Megane 3 RS
                                                                                                  The Mégane 3 RS oil filter provides optimal protection and performance for your engine, ensuring efficient filtration of impurities and long-lasting durability , even in the most demanding conditions.
                                                                                                  €8.52€11.03Regular price-€2.51 offPrice
                                                                                                  Entretoise galet distribution culasse Clio 2 RS y compris Gr N et X65 CupEntretoise galet distribution culasse Clio 2 RS y compris Gr N et X65 Cup
                                                                                                      Entretoise galet distribution culasse Clio Gr N 8200607654
                                                                                                      €12.06Price
                                                                                                      Entretoise galet distribution culasse Clio 2 RS y compris Gr N et X65 CupEntretoise galet distribution culasse Clio 2 RS y compris Gr N et X65 Cup
                                                                                                          Entretoise galet distribution culasse Clio Gr N 8200607654
                                                                                                          €12.06Price
                                                                                                          En Stock
                                                                                                          €277.74 €396.77 Regular price -30% off Price
                                                                                                          En Stock
                                                                                                          €277.74 €396.77 Regular price -30% off Price
                                                                                                          Embrayage Complet Origine Megane 3 RS
                                                                                                              Renault Mégane 3 RS Clutch Kit (Genuine) Replace your worn clutch with this genuine Renault kit, designed specifically for the Mégane 3 RS (all versions). Ensures optimal transmission and durable performance. Essential for maintaining your sports vehicle's performance.
                                                                                                              €277.74€396.77Regular price-30% offPrice
                                                                                                              Embrayage Complet Origine Megane 3 RS
                                                                                                                  Renault Mégane 3 RS Clutch Kit (Genuine) Replace your worn clutch with this genuine Renault kit, designed specifically for the Mégane 3 RS (all versions). Ensures optimal transmission and durable performance. Essential for maintaining your sports vehicle's performance.
                                                                                                                  €277.74€396.77Regular price-30% offPrice
                                                                                                                  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
                                                                                                                          Motul Engine Flush 300mL Pre-Oil Change for Sports Engines
                                                                                                                              Optimize your engine's health with Motul Engine Flush (300mL). This high-performance pre-oil change treatment is essential for removing deposits, sludge, and combustion residues before introducing fresh oil. Specially formulated for performance...
                                                                                                                              €10.75Price
                                                                                                                              Motul Engine Flush 300mL Pre-Oil Change for Sports Engines
                                                                                                                                  Optimize your engine's health with Motul Engine Flush (300mL). This high-performance pre-oil change treatment is essential for removing deposits, sludge, and combustion residues before introducing fresh oil. Specially formulated for performance...
                                                                                                                                  €10.75Price
                                                                                                                                  En Stock
                                                                                                                                  €158.84 €252.12 Regular price -37% off Price
                                                                                                                                  En Stock
                                                                                                                                  €158.84 €252.12 Regular price -37% off Price
                                                                                                                                  Kit Distribution origine Clio 2 RSGenuine Renault Timing Kit - Clio 2 RS / Gr N / Cup
                                                                                                                                      Ensure your engine's longevity with this genuine RENAULT timing belt kit , engineered for the high-performance demands of the Renault Clio 2 RS , as well as Group N and X65 Cup racing versions. This complete pack guarantees maintenance that meets Renault Sport standards. ...
                                                                                                                                      €158.84€252.12Regular price-37% offPrice
                                                                                                                                      Kit Distribution origine Clio 2 RSGenuine Renault Timing Kit - Clio 2 RS / Gr N / Cup
                                                                                                                                          Ensure your engine's longevity with this genuine RENAULT timing belt kit , engineered for the high-performance demands of the Renault Clio 2 RS , as well as Group N and X65 Cup racing versions. This complete pack guarantees maintenance that meets Renault Sport standards. ...
                                                                                                                                          €158.84€252.12Regular price-37% offPrice
                                                                                                                                          Mecacyl CR 100 ml
                                                                                                                                              Protect your high-performance engine's internal components with the Mecacyl CR 100 ml engine hyper-lubricant. This unique surface treatment mixes directly with your fresh oil to drastically reduce internal friction, lower operating temperatures, and optimize engine...
                                                                                                                                              €28.50Price
                                                                                                                                              Mecacyl CR 100 ml
                                                                                                                                                  Protect your high-performance engine's internal components with the Mecacyl CR 100 ml engine hyper-lubricant. This unique surface treatment mixes directly with your fresh oil to drastically reduce internal friction, lower operating temperatures, and optimize engine...
                                                                                                                                                  €28.50Price
                                                                                                                                                  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
                                                                                                                                                      €139.18 €231.97 Regular price -40% off Price
                                                                                                                                                      En Stock
                                                                                                                                                      €139.18 €231.97 Regular price -40% off Price
                                                                                                                                                      Kit Distribution Clio 1.8 16S et WilliamsKit Distribution Clio 1.8 16S et Williams
                                                                                                                                                          Kit distribution Renault pour Clio 1.8 16S Le kit contient la courroie et les 2 galets En cas de doute nous consulter.
                                                                                                                                                          €139.18€231.97Regular price-40% offPrice
                                                                                                                                                          Kit Distribution Clio 1.8 16S et WilliamsKit Distribution Clio 1.8 16S et Williams
                                                                                                                                                              Kit distribution Renault pour Clio 1.8 16S Le kit contient la courroie et les 2 galets En cas de doute nous consulter.
                                                                                                                                                              €139.18€231.97Regular price-40% offPrice
                                                                                                                                                              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
                                                                                                                                                                      Motul 300V Competition 5W40 2L Engine Oil - RS, Audi, VW, Porsche, Mercedes (Racing)
                                                                                                                                                                          Motul 300V Competition Engine Oil 5W40 2L - Ultimate Performance for Racing Don't let your competition vehicle's performance be compromised. engine oil is the ultimate choice for maximum protection and unmatched track performance. Specifically developed formula for extreme racing demands. 2-liter can. Also discover our...
                                                                                                                                                                          €39.99Price
                                                                                                                                                                          Motul 300V Competition 5W40 2L Engine Oil - RS, Audi, VW, Porsche, Mercedes (Racing)
                                                                                                                                                                              Motul 300V Competition Engine Oil 5W40 2L - Ultimate Performance for Racing Don't let your competition vehicle's performance be compromised. engine oil is the ultimate choice for maximum protection and unmatched track performance. Specifically developed formula for extreme racing demands. 2-liter can. Also discover our...
                                                                                                                                                                              €39.99Price
                                                                                                                                                                              En Stock
                                                                                                                                                                              €77.92 €111.31 Regular price -30% off Price
                                                                                                                                                                              En Stock
                                                                                                                                                                              €77.92 €111.31 Regular price -30% off Price
                                                                                                                                                                              Kit joints spy et vis arbres à cames
                                                                                                                                                                                  Kit joints spy et vis arbres à cames
                                                                                                                                                                                  €77.92€111.31Regular price-30% offPrice
                                                                                                                                                                                  Kit joints spy et vis arbres à cames
                                                                                                                                                                                      Kit joints spy et vis arbres à cames
                                                                                                                                                                                      €77.92€111.31Regular price-30% offPrice
                                                                                                                                                                                      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
                                                                                                                                                                                          En Stock
                                                                                                                                                                                          €15.42 Price
                                                                                                                                                                                          En Stock
                                                                                                                                                                                          €15.42 Price
                                                                                                                                                                                          Huile moteur Total quartz racing 10w60
                                                                                                                                                                                              Huile moteur Total Quartz Racing 10w60 Produit préconisé par Renault sport pour la Mégane N4 Référence: 7711166390 Vendu en bidon de 1L
                                                                                                                                                                                              €15.42Price
                                                                                                                                                                                              Huile moteur Total quartz racing 10w60
                                                                                                                                                                                                  Huile moteur Total Quartz Racing 10w60 Produit préconisé par Renault sport pour la Mégane N4 Référence: 7711166390 Vendu en bidon de 1L
                                                                                                                                                                                                  €15.42Price