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: Alimentation
  • Categories: Allumage
  • Categories: Circuit d'air
  • Categories: Support moteur
En Stock
€4.20 Price
En Stock
€4.20 Price
Prise de bobine
      This replacement coil plug is designed to replace faulty original coil plugs on Renault Clio 3 RS, Megane 2 RS, Megane 3 RS, and Twingo 2 RS. It ensures a reliable connection and optimal performance of the ignition system.
      €4.20Price
      Prise de bobine
          This replacement coil plug is designed to replace faulty original coil plugs on Renault Clio 3 RS, Megane 2 RS, Megane 3 RS, and Twingo 2 RS. It ensures a reliable connection and optimal performance of the ignition system.
          €4.20Price
          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
                  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
                          En Stock
                          €81.59 Price
                          En Stock
                          €81.59 Price
                          Sonde lambda Clio 2 RS et X65 CupSonde lambda Clio 2 RS et X65 Cup
                              Sonde lambda Clio 2 RS et X65 Cup Convient en Aval des Clio 172 et pour chacunes des sondes pour la 182
                              €81.59Price
                              Sonde lambda Clio 2 RS et X65 CupSonde lambda Clio 2 RS et X65 Cup
                                  Sonde lambda Clio 2 RS et X65 Cup Convient en Aval des Clio 172 et pour chacunes des sondes pour la 182
                                  €81.59Price
                                  En Stock
                                  €21.91 €31.30 Regular price -30% off Price
                                  En Stock
                                  €21.91 €31.30 Regular price -30% off Price
                                  Bougie origine Megane 4 GT 205Bougie origine Megane 4 GT 205
                                      Bougie origine Megane 4 GT 205 Vendue à l'unité
                                      €21.91€31.30Regular price-30% offPrice
                                      Bougie origine Megane 4 GT 205Bougie origine Megane 4 GT 205
                                          Bougie origine Megane 4 GT 205 Vendue à l'unité
                                          €21.91€31.30Regular price-30% offPrice
                                          En Stock
                                          €233.69 Price
                                          En Stock
                                          €233.69 Price
                                          Sonde lambda (oxygene) Clio 3 RSSonde lambda (oxygene) Clio 3 RS
                                              Sonde lambda (oxygene) Clio 3 RS 2 Modeles existent, la difference se situe au niveau des connecteurs des prises. Nous contacter pour confirmer la compatibilité
                                              €233.69Price
                                              Sonde lambda (oxygene) Clio 3 RSSonde lambda (oxygene) Clio 3 RS
                                                  Sonde lambda (oxygene) Clio 3 RS 2 Modeles existent, la difference se situe au niveau des connecteurs des prises. Nous contacter pour confirmer la compatibilité
                                                  €233.69Price
                                                  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
                                                          €361.00 Price
                                                          En Stock
                                                          €361.00 Price
                                                          Kit Admisssion Forge Motorsport Megane 4 RSKit Admisssion Forge Motorsport Megane 4 RS
                                                              Kit Admisssion Forge Motorsport Megane 4 RS Produit developpé dans le but de  - Garder des temperatures d'admission interessantes et les plus basses possibles - Ameliorer l'afflux d'air - Ameliorer l'esthetique de la baie moteur Apres de nombreux essais, les resultats obtenus sont + 15ch Ce gain peut etre superieur en associant ce kit...
                                                              €361.00Price
                                                              Kit Admisssion Forge Motorsport Megane 4 RSKit Admisssion Forge Motorsport Megane 4 RS
                                                                  Kit Admisssion Forge Motorsport Megane 4 RS Produit developpé dans le but de  - Garder des temperatures d'admission interessantes et les plus basses possibles - Ameliorer l'afflux d'air - Ameliorer l'esthetique de la baie moteur Apres de nombreux essais, les resultats obtenus sont + 15ch Ce gain peut etre superieur en associant ce kit...
                                                                  €361.00Price
                                                                  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
                                                                          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
                                                                                  Régulateur (membrane) pression gaz collecteur admission Clio 3 RS
                                                                                      Régulateur pression gaz carter Clio 3 RS
                                                                                      €61.60Price
                                                                                      Régulateur (membrane) pression gaz collecteur admission Clio 3 RS
                                                                                          €61.60Price
                                                                                          En Stock
                                                                                          €13.20 Price
                                                                                          En Stock
                                                                                          €13.20 Price
                                                                                          Joint Plenum Clio 3 RSJoint Plenum Clio 3 RS
                                                                                              Joint Plenum Clio 3 RS Joint permettant de faire l’étanchéité entre le moteur et le collecteur d'admission. Il est conseillé de le changer lors à chaque démontage
                                                                                              €13.20Price
                                                                                              Joint Plenum Clio 3 RSJoint Plenum Clio 3 RS
                                                                                                  Joint Plenum Clio 3 RS Joint permettant de faire l’étanchéité entre le moteur et le collecteur d'admission. Il est conseillé de le changer lors à chaque démontage
                                                                                                  €13.20Price
                                                                                                  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
                                                                                                          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
                                                                                                                  €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
                                                                                                                          Divergent boitier filtre assemblé Twingo R2
                                                                                                                              Optimize the air intake of your Renault Twingo R2 (195/205hp) with this official RENAULT SPORT air filter housing diverter . Developed for competition, this part with reference 7711167591 is essential for maximizing airflow and ensuring maximum engine power across the entire operating range. An indispensable addition for engine performance .
                                                                                                                              €511.63Price
                                                                                                                              Divergent boitier filtre assemblé Twingo R2
                                                                                                                                  Optimize the air intake of your Renault Twingo R2 (195/205hp) with this official RENAULT SPORT air filter housing diverter . Developed for competition, this part with reference 7711167591 is essential for maximizing airflow and ensuring maximum engine power across the entire operating range. An indispensable addition for engine performance .
                                                                                                                                  €511.63Price
                                                                                                                                  En Stock
                                                                                                                                  €37.52 Price
                                                                                                                                  En Stock
                                                                                                                                  €37.52 Price
                                                                                                                                  Raccord 90° de rampe d'injection Clio Gr N
                                                                                                                                      Secure your fuel system with this official RENAULT SPORT 90° fuel rail fitting . A key component from the competition catalog for the Renault Clio 2 RS Group N , this fitting ensures constant flow and absolute sealing under pressure. Do not let a standard component compromise the safety of your racing setup or your track day...
                                                                                                                                      €37.52Price
                                                                                                                                      Raccord 90° de rampe d'injection Clio Gr N
                                                                                                                                          Secure your fuel system with this official RENAULT SPORT 90° fuel rail fitting . A key component from the competition catalog for the Renault Clio 2 RS Group N , this fitting ensures constant flow and absolute sealing under pressure. Do not let a standard component compromise the safety of your racing setup or your track day...
                                                                                                                                          €37.52Price
                                                                                                                                          En Stock
                                                                                                                                          €57.84 Price
                                                                                                                                          En Stock
                                                                                                                                          €57.84 Price
                                                                                                                                          Capteur PMH Clio 2 RS
                                                                                                                                              Capteur PMH Clio 2 RS Selon votre modèle actuel de PMH, il est peut être nécessaire de prendre l'adaptateur proposé en bas de page en supplément.
                                                                                                                                              €57.84Price
                                                                                                                                              Capteur PMH Clio 2 RS
                                                                                                                                                  Capteur PMH Clio 2 RS Selon votre modèle actuel de PMH, il est peut être nécessaire de prendre l'adaptateur proposé en bas de page en supplément.
                                                                                                                                                  €57.84Price
                                                                                                                                                  En Stock
                                                                                                                                                  €12.50 Price
                                                                                                                                                  En Stock
                                                                                                                                                  €12.50 Price
                                                                                                                                                  Joint Collecteur Admission Clio 3 RS
                                                                                                                                                      Joint Collecteur Admission Clio 3 RS Joint permettant de faire l’étanchéité entre le moteur et le collecteur d'admission. Il est conseillé de le changer lors à chaque démontage
                                                                                                                                                      €12.50Price
                                                                                                                                                      Joint Collecteur Admission Clio 3 RS
                                                                                                                                                          Joint Collecteur Admission Clio 3 RS Joint permettant de faire l’étanchéité entre le moteur et le collecteur d'admission. Il est conseillé de le changer lors à chaque démontage
                                                                                                                                                          €12.50Price
                                                                                                                                                          En Stock
                                                                                                                                                          €149.05 €212.93 Regular price -30% off Price
                                                                                                                                                          En Stock
                                                                                                                                                          €149.05 €212.93 Regular price -30% off Price
                                                                                                                                                          Jeu de Bougies Renault Clio 4 RS
                                                                                                                                                              Set of 4 spark plugs for...
                                                                                                                                                              €149.05€212.93Regular price-30% offPrice
                                                                                                                                                              Jeu de Bougies Renault Clio 4 RS
                                                                                                                                                                  Set of 4 spark plugs for...
                                                                                                                                                                  €149.05€212.93Regular price-30% offPrice
                                                                                                                                                                  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