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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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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
          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
                  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
                      €22.74 Price
                      En Stock
                      €22.74 Price
                      Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                          Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                          €22.74Price
                          Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                              Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                              €22.74Price
                              Electrovanne décalage arbre à cames (dephasage) Clio 3 RS phase 2 et Cup X85 et Megane 3 RS
                                  Camshaft Phasing Solenoid Valve : genuine RENAULT part essential for the proper function and engine performance of your Renault Clio 3 RS Phase 2 and Renault Megane 3 RS . A faulty component leads to power loss and unstable idling. Ensures optimal...
                                  €202.56Price
                                  Electrovanne décalage arbre à cames (dephasage) Clio 3 RS phase 2 et Cup X85 et Megane 3 RS
                                      Camshaft Phasing Solenoid Valve : genuine RENAULT part essential for the proper function and engine performance of your Renault Clio 3 RS Phase 2 and Renault Megane 3 RS . A faulty component leads to power loss and unstable idling. Ensures optimal...
                                      €202.56Price
                                      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
                                              €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
                                                      En Stock
                                                      €20.80 Price
                                                      En Stock
                                                      €20.80 Price
                                                      Exhaust Manifold Gasket | Renault Twingo 2 RS / R2
                                                          Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
                                                          €20.80Price
                                                          Exhaust Manifold Gasket | Renault Twingo 2 RS / R2
                                                              Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
                                                              €20.80Price
                                                              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
                                                                      €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
                                                                              €197.06 Price
                                                                              En Stock
                                                                              €197.06 Price
                                                                              Poulie de dephasage Clio 3 RS - Megane 3 RSPoulie de dephasage Clio 3 RS - Megane 3 RS
                                                                                  Poulie de déphasage Veritable Produit Renault vendu dans sa boite
                                                                                  €197.06Price
                                                                                  Poulie de dephasage Clio 3 RS - Megane 3 RSPoulie de dephasage Clio 3 RS - Megane 3 RS
                                                                                      Poulie de déphasage Veritable Produit Renault vendu dans sa boite
                                                                                      €197.06Price
                                                                                      Flasque palier ( X2.30 )2.3mm Crankshaft Thrust Washer - Renault Clio RS & Megane RS
                                                                                          Ensure the longevity of your bottom end with this genuine Renault crankshaft thrust washer pair . Featuring a precise thickness of 2.3 mm , these thrust bearings are essential for controlling crankshaft end play on F7R and F4R engines. A certified OEM part for Clio Williams, Clio 2 RS, Clio 3 RS, and...
                                                                                          €43.51Price
                                                                                          Flasque palier ( X2.30 )2.3mm Crankshaft Thrust Washer - Renault Clio RS & Megane RS
                                                                                              Ensure the longevity of your bottom end with this genuine Renault crankshaft thrust washer pair . Featuring a precise thickness of 2.3 mm , these thrust bearings are essential for controlling crankshaft end play on F7R and F4R engines. A certified OEM part for Clio Williams, Clio 2 RS, Clio 3 RS, and...
                                                                                              €43.51Price
                                                                                              En Stock
                                                                                              €122.00 Price
                                                                                              En Stock
                                                                                              €122.00 Price
                                                                                              ARP Uprated Rod Bolts | Renault Clio & Megane RS
                                                                                                  Protect your bottom end assembly against high-RPM failure with this premium Uprated ARP Rod Bolts Kit for Renault Clio 16S, Williams, Clio 2 3 RS, and Megane 2 3 RS , commercialized under the international part number ARP-216-6301 . Forged from premium ARP...
                                                                                                  €122.00Price
                                                                                                  ARP Uprated Rod Bolts | Renault Clio & Megane RS
                                                                                                      Protect your bottom end assembly against high-RPM failure with this premium Uprated ARP Rod Bolts Kit for Renault Clio 16S, Williams, Clio 2 3 RS, and Megane 2 3 RS , commercialized under the international part number ARP-216-6301 . Forged from premium ARP...
                                                                                                      €122.00Price
                                                                                                      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
                                                                                                              En Stock
                                                                                                              €66.48 Price
                                                                                                              En Stock
                                                                                                              €66.48 Price
                                                                                                              Coussinets de Vilebrequin Trimetal ergotés ACLCoussinets de Vilebrequin Trimetal ergotés ACL
                                                                                                                  Coussinet de vilebrequin trimetal Coussinets pour F7P, F7R, F4R, F4R soit pour Clio 16S, Williams, clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS Présence d'ergots.
                                                                                                                  €66.48Price
                                                                                                                  Coussinets de Vilebrequin Trimetal ergotés ACLCoussinets de Vilebrequin Trimetal ergotés ACL
                                                                                                                      Coussinet de vilebrequin trimetal Coussinets pour F7P, F7R, F4R, F4R soit pour Clio 16S, Williams, clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS Présence d'ergots.
                                                                                                                      €66.48Price
                                                                                                                      En Stock
                                                                                                                      €3.16 Price
                                                                                                                      En Stock
                                                                                                                      €3.16 Price
                                                                                                                      Clip maintien support linguet Twingo R2 195/205
                                                                                                                          Clip maintien support linguet Twingo R2 195/205 Référence: 7711167614
                                                                                                                          €3.16Price
                                                                                                                          Clip maintien support linguet Twingo R2 195/205
                                                                                                                              Clip maintien support linguet Twingo R2 195/205 Référence: 7711167614
                                                                                                                              €3.16Price
                                                                                                                              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
                                                                                                                                      €211.80 Price
                                                                                                                                      En Stock
                                                                                                                                      €211.80 Price
                                                                                                                                      Pompe à huileRenault Sport Oil Pump - Clio 2/3 RS & Megane 2/3 RS
                                                                                                                                          Secure your engine block's lubrication with this high-performance oil pump for Renault 2.0L engines. Essential for maintaining constant oil pressure, it is compatible with Clio 2 RS , Clio 3 RS , as well as X65 Cup ,...
                                                                                                                                          €211.80Price
                                                                                                                                          Pompe à huileRenault Sport Oil Pump - Clio 2/3 RS & Megane 2/3 RS
                                                                                                                                              Secure your engine block's lubrication with this high-performance oil pump for Renault 2.0L engines. Essential for maintaining constant oil pressure, it is compatible with Clio 2 RS , Clio 3 RS , as well as X65 Cup ,...
                                                                                                                                              €211.80Price
                                                                                                                                              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
                                                                                                                                                      En Stock
                                                                                                                                                      €224.35 Price
                                                                                                                                                      En Stock
                                                                                                                                                      €224.35 Price
                                                                                                                                                      Kit Joint Refection moteur Origine Clio 2 RS
                                                                                                                                                          Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
                                                                                                                                                          €224.35Price
                                                                                                                                                          Kit Joint Refection moteur Origine Clio 2 RS
                                                                                                                                                              Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
                                                                                                                                                              €224.35Price
                                                                                                                                                              En Stock
                                                                                                                                                              €54.41 Price
                                                                                                                                                              En Stock
                                                                                                                                                              €54.41 Price
                                                                                                                                                              Cache bouchons arbres à cames moteur F4R
                                                                                                                                                                  Cache bouchons arbres à cames moteur F4R Kit de 2 plaques de fermeture moteur 7711155481
                                                                                                                                                                  €54.41Price
                                                                                                                                                                  Cache bouchons arbres à cames moteur F4R
                                                                                                                                                                      Cache bouchons arbres à cames moteur F4R Kit de 2 plaques de fermeture moteur 7711155481
                                                                                                                                                                      €54.41Price
                                                                                                                                                                      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
                                                                                                                                                                              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
                                                                                                                                                                                      €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
                                                                                                                                                                                              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
                                                                                                                                                                                                      Joint carter inférieur huile moteur Twingo RS y compris R1 et R2Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                                                                                                                                                          Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                                                                                                                                                          €95.21Price
                                                                                                                                                                                                          Joint carter inférieur huile moteur Twingo RS y compris R1 et R2Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                                                                                                                                                              Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                                                                                                                                                              €95.21Price
                                                                                                                                                                                                              En Stock
                                                                                                                                                                                                              €1,326.07 Price
                                                                                                                                                                                                              En Stock
                                                                                                                                                                                                              €1,326.07 Price
                                                                                                                                                                                                              AAC Admission loi 286TR2A2 Twingo R2 205
                                                                                                                                                                                                                  AAC Admission loi 286TR2A2 Twingo R2 205 Référence: 7711167674
                                                                                                                                                                                                                  €1,326.07Price
                                                                                                                                                                                                                  AAC Admission loi 286TR2A2 Twingo R2 205
                                                                                                                                                                                                                      AAC Admission loi 286TR2A2 Twingo R2 205 Référence: 7711167674
                                                                                                                                                                                                                      €1,326.07Price
                                                                                                                                                                                                                      Genuine RENAULT Oil Drain Plug - All Clio/Mégane RS Models
                                                                                                                                                                                                                          Protect your engine against critical leaks! Replace your genuine oil drain plug with this RENAULT reference, essential for all Clio RS , Mégane RS models and competition derivatives (Gr N, R3, X85 Cup). A quality screw guarantees the seal of the oil pan (sump), preventing a ...
                                                                                                                                                                                                                          €4.72Price
                                                                                                                                                                                                                          Genuine RENAULT Oil Drain Plug - All Clio/Mégane RS Models
                                                                                                                                                                                                                              Protect your engine against critical leaks! Replace your genuine oil drain plug with this RENAULT reference, essential for all Clio RS , Mégane RS models and competition derivatives (Gr N, R3, X85 Cup). A quality screw guarantees the seal of the oil pan (sump), preventing a ...
                                                                                                                                                                                                                              €4.72Price