Pensez à sélectionner votre vehicule pour limiter les resultats de recherche

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.

Active filters

  • Categories: Entretien
  • Categories: Préparation intérieure
  • Categories: Refroidissement
  • Categories: Suralimentation (Turbo)
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
          Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
              Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
              €33.94Price
              Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                  Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                  €33.94Price
                  En Stock
                  €28.80 Price
                  En Stock
                  €28.80 Price
                  Courroie accessoire Clio Gr N ou Rs avec montage type Ragnotti
                      Renault Clio R3 Max Accessory Belt (128mm Pulley) High-performance accessory belt for Renault Clio R3 Max with 128mm crankshaft pulley. Optimize your race Clio's transmission. Discover complementary products at the bottom of the page.
                      €28.80Price
                      Courroie accessoire Clio Gr N ou Rs avec montage type Ragnotti
                          Renault Clio R3 Max Accessory Belt (128mm Pulley) High-performance accessory belt for Renault Clio R3 Max with 128mm crankshaft pulley. Optimize your race Clio's transmission. Discover complementary products at the bottom of the page.
                          €28.80Price
                          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
                                  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
                                          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 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
                                                          €12.00 Price
                                                          En Stock
                                                          €12.00 Price
                                                          Bidon de 2 L ELF 700 ST 10w40Bidon de 2 L ELF 700 ST 10w40
                                                              Bidon de 2L de ELF 700 ST 10W40 Huile Préconisé par Renault l'entretien de la gamme RS comprenant Clio 16S et Williams, Twingo RS, Clio RS, Megane RS..
                                                              €12.00Price
                                                              Bidon de 2 L ELF 700 ST 10w40Bidon de 2 L ELF 700 ST 10w40
                                                                  Bidon de 2L de ELF 700 ST 10W40 Huile Préconisé par Renault l'entretien de la gamme RS comprenant Clio 16S et Williams, Twingo RS, Clio RS, Megane RS..
                                                                  €12.00Price
                                                                  En Stock
                                                                  €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
                                                                          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
                                                                                  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
                                                                                          €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
                                                                                                  €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
                                                                                                                  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
                                                                                                                          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
                                                                                                                                  Joint de queue de soupape echappement Megane 3 RS et N4Joint de queue de soupape echappement Megane 3 RS et N4
                                                                                                                                      Joint de queue de soupape echappement Megane 3 RS et N4 Vendu à l'unité Véritable produit d'origine
                                                                                                                                      €7.80Price
                                                                                                                                      Joint de queue de soupape echappement Megane 3 RS et N4Joint de queue de soupape echappement Megane 3 RS et N4
                                                                                                                                          Joint de queue de soupape echappement Megane 3 RS et N4 Vendu à l'unité Véritable produit d'origine
                                                                                                                                          €7.80Price
                                                                                                                                          En Stock
                                                                                                                                          €244.00 Price
                                                                                                                                          En Stock
                                                                                                                                          €244.00 Price
                                                                                                                                          Wasegate Forge Megane RS
                                                                                                                                              Dotée d'un tarage plus ferme que le modèle d'origine, elle permet une mise en action plus rapide du turbo, et une pression de sural plus stable.
                                                                                                                                              €244.00Price
                                                                                                                                              Wasegate Forge Megane RS
                                                                                                                                                  Dotée d'un tarage plus ferme que le modèle d'origine, elle permet une mise en action plus rapide du turbo, et une pression de sural plus stable.
                                                                                                                                                  €244.00Price
                                                                                                                                                  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
                                                                                                                                                          €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
                                                                                                                                                                  €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
                                                                                                                                                                          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
                                                                                                                                                                                  €133.31 Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €133.31 Price
                                                                                                                                                                                  Joint de Culasse renforcé CometicJoint de Culasse renforcé Cometic
                                                                                                                                                                                      Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 0.75mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                                                                                                                      €133.31Price
                                                                                                                                                                                      Joint de Culasse renforcé CometicJoint de Culasse renforcé Cometic
                                                                                                                                                                                          Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 0.75mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                                                                                                                          €133.31Price
                                                                                                                                                                                          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
                                                                                                                                                                                                  €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
                                                                                                                                                                                                          Durite Forge Admission Megane 2 RSForge Silicone Intake Hose Megane 2 RS
                                                                                                                                                                                                              Forge Motorsport Silicone Intake Hose for Renault Megane 2 RS Optimize the airflow to your Renault Megane 2 RS engine with this high-quality silicone intake hose from Forge Motorsport (ref: FMRMBHS). Available in several colors. Connects to the throttle body. Discover associated products at the bottom of the page.
                                                                                                                                                                                                              €44.99Price
                                                                                                                                                                                                              Durite Forge Admission Megane 2 RSForge Silicone Intake Hose Megane 2 RS
                                                                                                                                                                                                                  Forge Motorsport Silicone Intake Hose for Renault Megane 2 RS Optimize the airflow to your Renault Megane 2 RS engine with this high-quality silicone intake hose from Forge Motorsport (ref: FMRMBHS). Available in several colors. Connects to the throttle body. Discover associated products at the bottom of the page.
                                                                                                                                                                                                                  €44.99Price
                                                                                                                                                                                                                  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