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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
  • Categories: Préparation intérieure
  • Categories: Suralimentation (Turbo)
En Stock
€15.43 Price
En Stock
€15.43 Price
Centreur boite de vitesse et pompe à huileCentreur boite de vitesse et pompe à huile
      Centreur boite de vitesse et pompe à huile Nous contacter en cas de doute sur la compatibilité avec votre véhicule Référence: 8200582334
      €15.43Price
      Centreur boite de vitesse et pompe à huileCentreur boite de vitesse et pompe à huile
          Centreur boite de vitesse et pompe à huile Nous contacter en cas de doute sur la compatibilité avec votre véhicule Référence: 8200582334
          €15.43Price
          En Stock
          €134.58 Price
          En Stock
          €134.58 Price
          Capteur arbre à cames (déphasage) Twingo 2 RS y compris R1 et R2Camshaft Timing Solenoid – Twingo 2 RS R1 R2
              Camshaft timing solenoid valve designed for the Renault Twingo 2 RS , including Twingo R1 and Twingo R2 competition versions. It plays an important role in controlling the engine's variable camshaft timing system. Suitable for replacing a worn or faulty...
              €134.58Price
              Capteur arbre à cames (déphasage) Twingo 2 RS y compris R1 et R2Camshaft Timing Solenoid – Twingo 2 RS R1 R2
                  Camshaft timing solenoid valve designed for the Renault Twingo 2 RS , including Twingo R1 and Twingo R2 competition versions. It plays an important role in controlling the engine's variable camshaft timing system. Suitable for replacing a worn or faulty...
                  €134.58Price
                  En Stock
                  €556.99 Price
                  En Stock
                  €556.99 Price
                  Carter turbo-compresseur modifié Megane N4Carter turbo-compresseur modifié Megane N4
                      Carter turbo-compresseur modifié Megane N4 Référence: 7711167373
                      €556.99Price
                      Carter turbo-compresseur modifié Megane N4Carter turbo-compresseur modifié Megane N4
                          Carter turbo-compresseur modifié Megane N4 Référence: 7711167373
                          €556.99Price
                          Kit joint torique pour régulateur de pression de rampe
                              Kit joint torique pour régulateur de pression de rampe
                              €13.08Price
                              Kit joint torique pour régulateur de pression de rampe
                                  Kit joint torique pour régulateur de pression de rampe
                                  €13.08Price
                                  Upgrade conduit admission forge avec adaptateur Megane 4 RSUpgrade conduit admission forge avec adaptateur Megane 4 RS
                                      Upgrade conduit admission forge avec adaptateur Megane 4 RS. Produit developpé pour supprimer la restriction d'origine de l'admission. Bien qu'apportant deja un plus sur une voiture d'origine, ce produit a encore plus d'interet en cas de vehicule reprogrammé
                                      €187.01Price
                                      Upgrade conduit admission forge avec adaptateur Megane 4 RSUpgrade conduit admission forge avec adaptateur Megane 4 RS
                                          Upgrade conduit admission forge avec adaptateur Megane 4 RS. Produit developpé pour supprimer la restriction d'origine de l'admission. Bien qu'apportant deja un plus sur une voiture d'origine, ce produit a encore plus d'interet en cas de vehicule reprogrammé
                                          €187.01Price
                                          Borne positive batterie Megane 3 RS et N4
                                              Ensure perfect electrical conductivity with this genuine Renault positive battery terminal . Specifically designed for the Renault Megane 3 RS and Megane N4 , this battery clamp guarantees reliable starting and a stable power supply for your onboard electronic equipment, even under intensive use. ...
                                              €10.58Price
                                              Borne positive batterie Megane 3 RS et N4
                                                  Ensure perfect electrical conductivity with this genuine Renault positive battery terminal . Specifically designed for the Renault Megane 3 RS and Megane N4 , this battery clamp guarantees reliable starting and a stable power supply for your onboard electronic equipment, even under intensive use. ...
                                                  €10.58Price
                                                  Gicleur Piston 1-3 Clio 2 RS 182 et Clio 3 RS
                                                      Protect the lower F4R engine of your Clio 2 RS 182, Clio 3 RS, or Megane 2 RS with this genuine Renault oil sprayer (oil jet) for cylinders 1 and 3. A critical component for piston cooling and lubrication, it guarantees the reliability and longevity of your engine. Don't neglect the protection of your F4R.
                                                      €14.65Price
                                                      Gicleur Piston 1-3 Clio 2 RS 182 et Clio 3 RS
                                                          Protect the lower F4R engine of your Clio 2 RS 182, Clio 3 RS, or Megane 2 RS with this genuine Renault oil sprayer (oil jet) for cylinders 1 and 3. A critical component for piston cooling and lubrication, it guarantees the reliability and longevity of your engine. Don't neglect the protection of your F4R.
                                                          €14.65Price
                                                          En Stock
                                                          €106.16 Price
                                                          En Stock
                                                          €106.16 Price
                                                          Tuyau huile turbo Megane RS
                                                              Protect your turbocharger's health with this genuine Renault turbo oil feed pipe . Designed for the Renault Megane 2 RS and Megane 3 RS , this line ensures optimal lubrication of the turbine shaft. As this is an evolved version of the original manufacturer part, a specific mounting adapter ...
                                                              €106.16Price
                                                              Tuyau huile turbo Megane RS
                                                                  Protect your turbocharger's health with this genuine Renault turbo oil feed pipe . Designed for the Renault Megane 2 RS and Megane 3 RS , this line ensures optimal lubrication of the turbine shaft. As this is an evolved version of the original manufacturer part, a specific mounting adapter ...
                                                                  €106.16Price
                                                                  En Stock
                                                                  €29.62 Price
                                                                  En Stock
                                                                  €29.62 Price
                                                                  Vis creuse tuyauterie alimentation huile Megane RS
                                                                      Vis creuse tuyauterie alimentation huile Megane 2 et 3 RS
                                                                      €29.62Price
                                                                      Vis creuse tuyauterie alimentation huile Megane RS
                                                                          Vis creuse tuyauterie alimentation huile Megane 2 et 3 RS
                                                                          €29.62Price
                                                                          Câble alimentation protection batterie Megane 3 RS et N4
                                                                              Câble alimentation protection batterie Megane 3 RS et N4
                                                                              €96.72Price
                                                                              Câble alimentation protection batterie Megane 3 RS et N4
                                                                                  Câble alimentation protection batterie Megane 3 RS et N4
                                                                                  €96.72Price
                                                                                  En Stock
                                                                                  €178.20 Price
                                                                                  En Stock
                                                                                  €178.20 Price
                                                                                  Plaque reniflard Clio 2 RS 172
                                                                                      Plaque de reniflard taillé massé venant en lieu et place de la plaque d'origine Ajout un raccord Dash permettant de venir connecter directement un recuperateur de vapeur d'huile. Cette piece est un serieux atout pour les véhicules ayant modifié le collecteur d'admission d'origine. Produit a completer avec un joint Loctite 5980.
                                                                                      €178.20Price
                                                                                      Plaque reniflard Clio 2 RS 172
                                                                                          Plaque de reniflard taillé massé venant en lieu et place de la plaque d'origine Ajout un raccord Dash permettant de venir connecter directement un recuperateur de vapeur d'huile. Cette piece est un serieux atout pour les véhicules ayant modifié le collecteur d'admission d'origine. Produit a completer avec un joint Loctite 5980.
                                                                                          €178.20Price
                                                                                          En Stock
                                                                                          €11.53 Price
                                                                                          En Stock
                                                                                          €11.53 Price
                                                                                          Demi coussinet rainurés jaune vilebrequin K4M 854Demi coussinet rainurés jaune vilebrequin K4M 854
                                                                                              Demi coussinet rainurés jaune vilebrequin K4M 854
                                                                                              €11.53Price
                                                                                              Demi coussinet rainurés jaune vilebrequin K4M 854Demi coussinet rainurés jaune vilebrequin K4M 854
                                                                                                  Demi coussinet rainurés jaune vilebrequin K4M 854
                                                                                                  €11.53Price
                                                                                                  Dispo selon configuration
                                                                                                  €379.68 €399.66 Regular price -€19.98 off Price
                                                                                                  Dispo selon configuration
                                                                                                  €379.68 €399.66 Regular price -€19.98 off Price
                                                                                                  Kit Dump Valve HKS Megane 2 RS
                                                                                                    • Pack
                                                                                                    Kit complet permettant l'installation d'une dump valve HKS sans nécessiter de produit additionnel.
                                                                                                    €379.68€399.66Regular price-€19.98 offPrice
                                                                                                    Kit Dump Valve HKS Megane 2 RS
                                                                                                      • Pack
                                                                                                      Kit complet permettant l'installation d'une dump valve HKS sans nécessiter de produit additionnel.
                                                                                                      €379.68€399.66Regular price-€19.98 offPrice
                                                                                                      En Stock
                                                                                                      €32.92 Price
                                                                                                      En Stock
                                                                                                      €32.92 Price
                                                                                                      Rampe injection Clio 2 RS 172 phase 2 et 182
                                                                                                          Fuel injection rail Renault Clio 2 RS Phase 2 & 3 Give your Renault Clio 2 RS Phase 2 or 3 an optimum fuel supply with the genuine Renault injection rail! Designed for sports driving enthusiasts, this rail guarantees a constant and precise fuel flow, even at high engine speeds, for optimum performance and an unrivalled driving experience. ...
                                                                                                          €32.92Price
                                                                                                          Rampe injection Clio 2 RS 172 phase 2 et 182
                                                                                                              Fuel injection rail Renault Clio 2 RS Phase 2 & 3 Give your Renault Clio 2 RS Phase 2 or 3 an optimum fuel supply with the genuine Renault injection rail! Designed for sports driving enthusiasts, this rail guarantees a constant and precise fuel flow, even at high engine speeds, for optimum performance and an unrivalled driving experience. ...
                                                                                                              €32.92Price
                                                                                                              Dispo selon configuration
                                                                                                              €330.87 €367.63 Regular price -€36.76 off Price
                                                                                                              Dispo selon configuration
                                                                                                              €330.87 €367.63 Regular price -€36.76 off Price
                                                                                                              Kit Dump Valve HKS Megane 3 RSKit Dump Valve HKS Megane 3 RS
                                                                                                                • Pack
                                                                                                                Kit Dump Valve HKS Megane 3 RS Le kit est complet et permet donc de monter une dump HKS sans necessité d'acheter d'autres pieces.
                                                                                                                €330.87€367.63Regular price-€36.76 offPrice
                                                                                                                Kit Dump Valve HKS Megane 3 RSKit Dump Valve HKS Megane 3 RS
                                                                                                                  • Pack
                                                                                                                  Kit Dump Valve HKS Megane 3 RS Le kit est complet et permet donc de monter une dump HKS sans necessité d'acheter d'autres pieces.
                                                                                                                  €330.87€367.63Regular price-€36.76 offPrice
                                                                                                                  Bague étanchéité électrovanne déphasage Twingo RS, R1 et R2Bague étanchéité électrovanne déphasage Twingo RS, R1 et R2
                                                                                                                      Bague étanchéité électrovanne de déphasage Twingo RS, R1 et R2
                                                                                                                      €17.09Price
                                                                                                                      Bague étanchéité électrovanne déphasage Twingo RS, R1 et R2Bague étanchéité électrovanne déphasage Twingo RS, R1 et R2
                                                                                                                          Bague étanchéité électrovanne de déphasage Twingo RS, R1 et R2
                                                                                                                          €17.09Price
                                                                                                                          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
                                                                                                                                  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
                                                                                                                                          Fuel Pump Locking Ring and Seal Kit - Renault Sport Range
                                                                                                                                              Ensure a leak-free fuel system with this genuine Renault fuel pump locking ring and seal kit . Essential for any intervention on the fuel sender unit, this kit prevents leaks and persistent fuel odors inside your sports vehicle's cabin. Includes the locking nut (ring) and the...
                                                                                                                                              €55.88Price
                                                                                                                                              Fuel Pump Locking Ring and Seal Kit - Renault Sport Range
                                                                                                                                                  Ensure a leak-free fuel system with this genuine Renault fuel pump locking ring and seal kit . Essential for any intervention on the fuel sender unit, this kit prevents leaks and persistent fuel odors inside your sports vehicle's cabin. Includes the locking nut (ring) and the...
                                                                                                                                                  €55.88Price
                                                                                                                                                  Dispo selon configuration
                                                                                                                                                  €169.00 €209.02 Regular price -€40.02 off Price
                                                                                                                                                  Dispo selon configuration
                                                                                                                                                  €169.00 €209.02 Regular price -€40.02 off Price
                                                                                                                                                  COLD SIDE Clio 4 RS (conduit d'air renforcé)Uprated Cold Side Boost Pipe Kit - Renault Clio 4 RS
                                                                                                                                                    • Pack
                                                                                                                                                    Protect your turbocharging system against pressure drops with the high-performance Cold Side Kit for the Renault Clio 4 RS (Uprated Air Guide Pipe) . This reinforced intake hose replaces the fragile factory plastic pipe that is prone to cracking, optimizing cold airflow...
                                                                                                                                                    €169.00€209.02Regular price-€40.02 offPrice
                                                                                                                                                    COLD SIDE Clio 4 RS (conduit d'air renforcé)Uprated Cold Side Boost Pipe Kit - Renault Clio 4 RS
                                                                                                                                                      • Pack
                                                                                                                                                      Protect your turbocharging system against pressure drops with the high-performance Cold Side Kit for the Renault Clio 4 RS (Uprated Air Guide Pipe) . This reinforced intake hose replaces the fragile factory plastic pipe that is prone to cracking, optimizing cold airflow...
                                                                                                                                                      €169.00€209.02Regular price-€40.02 offPrice
                                                                                                                                                      En Stock
                                                                                                                                                      €178.04 Price
                                                                                                                                                      En Stock
                                                                                                                                                      €178.04 Price
                                                                                                                                                      Pompe à Essence Clio 2 RS et X65 Cup
                                                                                                                                                          Fuel Gauge/Pump Module Renault Clio 2 RS (Original) Original Renault fuel gauge/pump module for Clio 2 RS Phase 2/3 (without regulator on rail) and Clio 2 X65 Cup. Ensures reliable fuel supply. Discover the compatible fixing ring and gasket at the bottom of the page.
                                                                                                                                                          €178.04Price
                                                                                                                                                          Pompe à Essence Clio 2 RS et X65 Cup
                                                                                                                                                              Fuel Gauge/Pump Module Renault Clio 2 RS (Original) Original Renault fuel gauge/pump module for Clio 2 RS Phase 2/3 (without regulator on rail) and Clio 2 X65 Cup. Ensures reliable fuel supply. Discover the compatible fixing ring and gasket at the bottom of the page.
                                                                                                                                                              €178.04Price
                                                                                                                                                              En Stock
                                                                                                                                                              €50.86 Price
                                                                                                                                                              En Stock
                                                                                                                                                              €50.86 Price
                                                                                                                                                              Manchon pipe de remplissage réservoir Twingo 2 RS
                                                                                                                                                                  Manchon pipe de remplissage réservoir Twingo 2 RS
                                                                                                                                                                  €50.86Price
                                                                                                                                                                  Manchon pipe de remplissage réservoir Twingo 2 RS
                                                                                                                                                                      Manchon pipe de remplissage réservoir Twingo 2 RS
                                                                                                                                                                      €50.86Price
                                                                                                                                                                      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
                                                                                                                                                                              Multi-layer reinforced silicone turbo boost hose kit by Forge Motorsport for Renault Megane 2 RS.Silicone Turbo Hose Kit Forge | Renault Megane 2 RS
                                                                                                                                                                                  Do not risk a sudden loss of boost pressure during a hard acceleration pull, a split factory duct caused by extreme engine bay heat, or an efficiency drop at your intercooler cores. The premium Kit Durites (Tubulures) Turbo Forge Motorsport pour Megane 2 RS replaces...
                                                                                                                                                                                  €241.00Price
                                                                                                                                                                                  Multi-layer reinforced silicone turbo boost hose kit by Forge Motorsport for Renault Megane 2 RS.Silicone Turbo Hose Kit Forge | Renault Megane 2 RS
                                                                                                                                                                                      Do not risk a sudden loss of boost pressure during a hard acceleration pull, a split factory duct caused by extreme engine bay heat, or an efficiency drop at your intercooler cores. The premium Kit Durites (Tubulures) Turbo Forge Motorsport pour Megane 2 RS replaces...
                                                                                                                                                                                      €241.00Price
                                                                                                                                                                                      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
                                                                                                                                                                                              Raccord Pompe à essence Clio GrN
                                                                                                                                                                                                  Renault Clio 2 Group N Fuel Pump Connector , a component intended for the fuel supply system of vehicles configured for Group N applications. Vehicle brand: Renault Model: Clio 2 Application: Group N Part type: Fuel pump connector ...
                                                                                                                                                                                                  €50.45Price
                                                                                                                                                                                                  Raccord Pompe à essence Clio GrN
                                                                                                                                                                                                      Renault Clio 2 Group N Fuel Pump Connector , a component intended for the fuel supply system of vehicles configured for Group N applications. Vehicle brand: Renault Model: Clio 2 Application: Group N Part type: Fuel pump connector ...
                                                                                                                                                                                                      €50.45Price
                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                      €36.01 Price
                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                      €36.01 Price
                                                                                                                                                                                                      Kit ressorts Dump Valve Forge
                                                                                                                                                                                                          Kit comprenant plusieurs ressorts pour ajuster vos Dump Valve Ne convient pas pour les références de dump suivantes : FMDVFSIT, FMDVFSITVR et FMDVK04D Kit permettant l'optimisation de votre Dump afin de l'ajuster à vos autres modifications (préparation). Il est composé de 4 ressorts de remplacement. Couleurs des ressorts et pressions correspondantes: Vert 0,3 à 1,03 Bar Jaune 1.03 à 1,53 Bar...
                                                                                                                                                                                                          €36.01Price
                                                                                                                                                                                                          Kit ressorts Dump Valve Forge
                                                                                                                                                                                                              Kit comprenant plusieurs ressorts pour ajuster vos Dump Valve Ne convient pas pour les références de dump suivantes : FMDVFSIT, FMDVFSITVR et FMDVK04D Kit permettant l'optimisation de votre Dump afin de l'ajuster à vos autres modifications (préparation). Il est composé de 4 ressorts de remplacement. Couleurs des ressorts et pressions correspondantes: Vert 0,3 à 1,03 Bar Jaune 1.03 à 1,53 Bar...
                                                                                                                                                                                                              €36.01Price