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Engine Parts & Tuning Hardware

Unleash Your Engine's Power: Performance Parts & Accessories

At Optimiz Access, we offer a vast lineup of engine performance parts and accessories to boost the output of your sports vehicle or premium automobile. Optimize your engine for extreme performance and enjoy an exhilarating driving experience on both road and track.

Key benefits of engine tuning: substantial horsepower and torque gains for rapid acceleration, sharper throttle response, enhanced mechanical reliability using high-strength components, and tailored custom tuning suited to all engines.

Essential Products to Maximize Engine Performance

Discover all our precision-engineered components designed to increase efficiency and durability in your engine block:

  • Cold Air Intakes & Air Filtration – Performance sports filters and carbon intake systems for maximum air filling.
  • Intercoolers & Charge Coolers – Efficient intake air cooling to sustain consistent power output under heavy loads.
  • Forged Pistons & Connecting Rods – Heavy-duty internal components built to withstand extreme temperatures and boost pressures.
  • Turbos & Superchargers – Forced induction upgrades delivering significant power increases.
  • Ignition & Servicing – Competition spark plugs, high-output ignition coils, and high-performance oil filters.

Industry-Leading Benchmark Brands

We stock top tuning and motorsport manufacturers: Wagner Tuning, Forge Motorsport, Magnecor, Green Filter, BMC Filter, NGK, Vibra Technics, and Powerflex. We also supply OEM factory parts to ensure meticulous engine maintenance.

Why you should Choose Optimiz Access for Your Engine Upgrades

Since 2010, Optimiz Access has specialized in selecting top-tier engine components for the custom upgrading and maintenance of sports vehicles. Located in northern France (Hauts-de-France) — near Lille, Valenciennes, Cambrai, Arras, Seclin, Douai, and Saint-Quentin —, our expert technicians guide your hardware selection and provide professional installation in our workshop. We ensure strict quality control along with fast worldwide shipping.

Unleash Your Engine's Full Potential Today

Give your car the raw power and sharp response it deserves. Trust the expertise of Optimiz Access, select your engine performance parts today, and benefit from our fast dispatch.

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  • Categories: Alimentation
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  • Categories: Préparation intérieure
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
          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
                  Collection de Ségments (X82.70)
                      Ensure a perfect engine seal with this genuine Renault piston ring set . Specifically designed for the F4R and F4Rt engines found in the Clio 2 RS , Clio 3 RS , and Megane 3 RS , this kit is the crucial element for restoring...
                      €37.55Price
                      Collection de Ségments (X82.70)
                          Ensure a perfect engine seal with this genuine Renault piston ring set . Specifically designed for the F4R and F4Rt engines found in the Clio 2 RS , Clio 3 RS , and Megane 3 RS , this kit is the crucial element for restoring...
                          €37.55Price
                          Bidon de 5L de ELF HTX Collection 20w50ELF HTX Collection 20w50 5L - Porsche & Alpine Classic
                              Protect the original powertrain of your automotive icon with ELF HTX Collection 20w50 mineral engine oil in a 5L jug . Specifically formulated for vintage mechanics and classic historic engines, this high-end formula guarantees consistent oil pressure and unmatched...
                              €63.62Price
                              Bidon de 5L de ELF HTX Collection 20w50ELF HTX Collection 20w50 5L - Porsche & Alpine Classic
                                  Protect the original powertrain of your automotive icon with ELF HTX Collection 20w50 mineral engine oil in a 5L jug . Specifically formulated for vintage mechanics and classic historic engines, this high-end formula guarantees consistent oil pressure and unmatched...
                                  €63.62Price
                                  Jeu de 4 Fils de Bougies Magnecor Clio 1 16s / Williams
                                      Kit de fils d'allumage MAGNECOR - Renault Clio 16S/Williams
                                      €150.38Price
                                      Jeu de 4 Fils de Bougies Magnecor Clio 1 16s / Williams
                                          Kit de fils d'allumage MAGNECOR - Renault Clio 16S/Williams
                                          €150.38Price
                                          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
                                                  Vis Fixation Volant Moteur
                                                      Secure the transmission of power from your crankshaft to your clutch assembly with this heavy-duty Flywheel Fixing Bolt for the Renault Clio 16S, Williams, Clio 2 RS, and Clio 3 RS . This high-tensile specialist hardware is critical to enduring harsh rev matches and the...
                                                      €5.64Price
                                                      Vis Fixation Volant Moteur
                                                          Secure the transmission of power from your crankshaft to your clutch assembly with this heavy-duty Flywheel Fixing Bolt for the Renault Clio 16S, Williams, Clio 2 RS, and Clio 3 RS . This high-tensile specialist hardware is critical to enduring harsh rev matches and the...
                                                          €5.64Price
                                                          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
                                                                      En Stock
                                                                      €80.84 €115.49 Regular price -30% off Price
                                                                      En Stock
                                                                      €80.84 €115.49 Regular price -30% off Price
                                                                      Jeu de Bougies Origine Megane 3 RS et N4
                                                                          Do not let poor combustion stifle the potential of your F4RT engine. This set of 4 genuine Renault spark plugs is specifically calibrated to meet the extreme thermal demands of the Renault Megane 3 RS (250, 265, and 275 hp). By choosing these manufacturer-certified plugs, you avoid misfires under full load and protect your cylinders from the risks of...
                                                                          €80.84€115.49Regular price-30% offPrice
                                                                          Jeu de Bougies Origine Megane 3 RS et N4
                                                                              Do not let poor combustion stifle the potential of your F4RT engine. This set of 4 genuine Renault spark plugs is specifically calibrated to meet the extreme thermal demands of the Renault Megane 3 RS (250, 265, and 275 hp). By choosing these manufacturer-certified plugs, you avoid misfires under full load and protect your cylinders from the risks of...
                                                                              €80.84€115.49Regular price-30% offPrice
                                                                              En Stock
                                                                              €36.05 Price
                                                                              En Stock
                                                                              €36.05 Price
                                                                              Jeu de Bougies Renault Clio 16S
                                                                                  Jeu de Bougies Renault (fabriqué par NGK) (Vendu par 4) pour Clio 16S Produit d'origine Renault
                                                                                  €36.05Price
                                                                                  Jeu de Bougies Renault Clio 16S
                                                                                      Jeu de Bougies Renault (fabriqué par NGK) (Vendu par 4) pour Clio 16S Produit d'origine Renault
                                                                                      €36.05Price
                                                                                      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
                                                                                              En Stock
                                                                                              €70.25 Price
                                                                                              En Stock
                                                                                              €70.25 Price
                                                                                              Blue Crankshaft Half-Bearing Set
                                                                                                  Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                                                                                                  €70.25Price
                                                                                                  Blue Crankshaft Half-Bearing Set
                                                                                                      Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                                                                                                      €70.25Price
                                                                                                      En Stock
                                                                                                      €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
                                                                                                              €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
                                                                                                                      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
                                                                                                                              €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
                                                                                                                                      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
                                                                                                                                              €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
                                                                                                                                                      Renault Camshaft Dephaser Seal – Clio 2/3 RS & Mégane 3 RSRenault Camshaft Dephaser Seal – Clio 2/3 RS & Mégane 3 RS
                                                                                                                                                          An aged or damaged seal around the camshaft timing solenoid can lead to oil leaks and additional engine maintenance. The Renault camshaft dephaser solenoid oil seal (reference 7700106385) is designed to provide sealing at the solenoid mounting point on compatible variable...
                                                                                                                                                          €16.84Price
                                                                                                                                                          Renault Camshaft Dephaser Seal – Clio 2/3 RS & Mégane 3 RSRenault Camshaft Dephaser Seal – Clio 2/3 RS & Mégane 3 RS
                                                                                                                                                              An aged or damaged seal around the camshaft timing solenoid can lead to oil leaks and additional engine maintenance. The Renault camshaft dephaser solenoid oil seal (reference 7700106385) is designed to provide sealing at the solenoid mounting point on compatible variable...
                                                                                                                                                              €16.84Price
                                                                                                                                                              Jeu de Bougies NGK PFR7ZTG
                                                                                                                                                                  Maximize your engine's combustion cycle with this set of NGK PFR7ZTG Spark Plugs . Specifically engineered for the high-performance demands of Renault Sport engines, including the Clio 3 RS and Megane 2 RS , these plugs...
                                                                                                                                                                  €53.99Price
                                                                                                                                                                  Jeu de Bougies NGK PFR7ZTG
                                                                                                                                                                      Maximize your engine's combustion cycle with this set of NGK PFR7ZTG Spark Plugs . Specifically engineered for the high-performance demands of Renault Sport engines, including the Clio 3 RS and Megane 2 RS , these plugs...
                                                                                                                                                                      €53.99Price
                                                                                                                                                                      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