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: Circuit d'air
  • Categories: Entretien
  • Categories: Support moteur
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
          €19.30 €25.79 Regular price -€6.49 off Price
          En Stock
          €19.30 €25.79 Regular price -€6.49 off Price
          Courroie accessoire Twingo RS et R1
              Don't risk an unexpected breakdown! This summary concerns the Genuine RENAULT Accessory Belt for the Renault Twingo 2 RS and Renault Wind 1.6 16v models. This is an essential part for the smooth running of your sports engine. Failing to replace it in time risks costly damage. ...
              €19.30€25.79Regular price-€6.49 offPrice
              Courroie accessoire Twingo RS et R1
                  Don't risk an unexpected breakdown! This summary concerns the Genuine RENAULT Accessory Belt for the Renault Twingo 2 RS and Renault Wind 1.6 16v models. This is an essential part for the smooth running of your sports engine. Failing to replace it in time risks costly damage. ...
                  €19.30€25.79Regular price-€6.49 offPrice
                  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
                          Durite d'admission d'air Forge Motorsport Mégane 3 RSDurite d'admission d'air Forge Motorsport Mégane 3 RS
                              Durite d'admission d'air silicone Forge Motorsport qui se fixe en sortie de boite à air. Celle ce permet d'augmenter le débit d'air notamment grâce à un diamètre plus gros ainsi qu'une surface lisse interne. Se monte en lieu et place de celle d'origine Plusieurs couleurs disponibles
                              €159.77Price
                              Durite d'admission d'air Forge Motorsport Mégane 3 RSDurite d'admission d'air Forge Motorsport Mégane 3 RS
                                  Durite d'admission d'air silicone Forge Motorsport qui se fixe en sortie de boite à air. Celle ce permet d'augmenter le débit d'air notamment grâce à un diamètre plus gros ainsi qu'une surface lisse interne. Se monte en lieu et place de celle d'origine Plusieurs couleurs disponibles
                                  €159.77Price
                                  En Stock
                                  €8.57 Price
                                  En Stock
                                  €8.57 Price
                                  Joint de décanteur Clio 2 RS - Clio 3 RS
                                      Joint de décanteur Clio 2 RS et Clio 3 RS Joint se trouvant entre le décanteur et le plenum
                                      €8.57Price
                                      Joint de décanteur Clio 2 RS - Clio 3 RS
                                          Joint de décanteur Clio 2 RS et Clio 3 RS Joint se trouvant entre le décanteur et le plenum
                                          €8.57Price
                                          En Stock
                                          €77.92 €111.31 Regular price -30% off Price
                                          En Stock
                                          €77.92 €111.31 Regular price -30% off Price
                                          Kit joints spy et vis arbres à cames
                                              Kit joints spy et vis arbres à cames
                                              €77.92€111.31Regular price-30% offPrice
                                              Kit joints spy et vis arbres à cames
                                                  Kit joints spy et vis arbres à cames
                                                  €77.92€111.31Regular price-30% offPrice
                                                  Durite Admission Clio 2 RSSilicone Air Induction Hose for Renault Clio 2 RS
                                                      Stop letting a perished or cracked factory hose choke your Clio 2 RS engine. This reinforced silicone induction hose is a direct replacement for the OEM rubber part, which is notorious for collapsing under vacuum. Available in various colors for a subtle or race-inspired customization , it ensures...
                                                      €69.00Price
                                                      Durite Admission Clio 2 RSSilicone Air Induction Hose for Renault Clio 2 RS
                                                          Stop letting a perished or cracked factory hose choke your Clio 2 RS engine. This reinforced silicone induction hose is a direct replacement for the OEM rubber part, which is notorious for collapsing under vacuum. Available in various colors for a subtle or race-inspired customization , it ensures...
                                                          €69.00Price
                                                          En Stock
                                                          €10.57 €13.93 Regular price -€3.36 off Price
                                                          En Stock
                                                          €10.57 €13.93 Regular price -€3.36 off Price
                                                          Joint Collecteur Admission Clio 2 RS
                                                              Ensure vital engine sealing with this genuine Renault intake manifold gasket for the Clio 2 RS (172 and 182hp). This authentic component guarantees a perfect junction between the cylinder head and your manifold, preventing any parasitic air leaks that could degrade the performance of your F4R engine . Do not...
                                                              €10.57€13.93Regular price-€3.36 offPrice
                                                              Joint Collecteur Admission Clio 2 RS
                                                                  Ensure vital engine sealing with this genuine Renault intake manifold gasket for the Clio 2 RS (172 and 182hp). This authentic component guarantees a perfect junction between the cylinder head and your manifold, preventing any parasitic air leaks that could degrade the performance of your F4R engine . Do not...
                                                                  €10.57€13.93Regular price-€3.36 offPrice
                                                                  Mecacyl CR 100 ml
                                                                      Protect your high-performance engine's internal components with the Mecacyl CR 100 ml engine hyper-lubricant. This unique surface treatment mixes directly with your fresh oil to drastically reduce internal friction, lower operating temperatures, and optimize engine...
                                                                      €28.50Price
                                                                      Mecacyl CR 100 ml
                                                                          Protect your high-performance engine's internal components with the Mecacyl CR 100 ml engine hyper-lubricant. This unique surface treatment mixes directly with your fresh oil to drastically reduce internal friction, lower operating temperatures, and optimize engine...
                                                                          €28.50Price
                                                                          DeatschWerks 265L/H Fuel Pump (E85) for Renault Megane 2 RS
                                                                              Secure your engine build with the DeatschWerks DW65c fuel pump , delivering a high-performance flow rate of 265L/H . Specifically engineered for the Renault Megane 2 RS , this pump offers the major advantage of being 100% E85 compatible (ethanol), making it the perfect choice for flex-fuel conversions. Its compact design allows...
                                                                              €224.09Price
                                                                              DeatschWerks 265L/H Fuel Pump (E85) for Renault Megane 2 RS
                                                                                  Secure your engine build with the DeatschWerks DW65c fuel pump , delivering a high-performance flow rate of 265L/H . Specifically engineered for the Renault Megane 2 RS , this pump offers the major advantage of being 100% E85 compatible (ethanol), making it the perfect choice for flex-fuel conversions. Its compact design allows...
                                                                                  €224.09Price
                                                                                  En Stock
                                                                                  €99.36 Price
                                                                                  En Stock
                                                                                  €99.36 Price
                                                                                  Coussinets bielle ( X48 ) Clio 2 RS Mégane 2 RSCoussinets bielle ( X48 ) Clio 2 RS Mégane 2 RS
                                                                                      Coussinets bielle ( X=48 ) Le prix est pour 8 Produit remplacé, vous trouverez le produit de remplacement ci dessous ⬇️
                                                                                      €99.36Price
                                                                                      Coussinets bielle ( X48 ) Clio 2 RS Mégane 2 RSCoussinets bielle ( X48 ) Clio 2 RS Mégane 2 RS
                                                                                          Coussinets bielle ( X=48 ) Le prix est pour 8 Produit remplacé, vous trouverez le produit de remplacement ci dessous ⬇️
                                                                                          €99.36Price
                                                                                          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
                                                                                                  En Stock
                                                                                                  €3.00 Price
                                                                                                  En Stock
                                                                                                  €3.00 Price
                                                                                                  Joint bimatiere 16mm
                                                                                                      The 16mm bimaterial gasket provides a reliable and durable sealing solution, suitable for various industrial, automotive, and domestic applications . Made from robust materials, it ensures a precise fit, easy installation, and optimal performance even under demanding conditions such as high temperatures and pressures.
                                                                                                      €3.00Price
                                                                                                      Joint bimatiere 16mm
                                                                                                          The 16mm bimaterial gasket provides a reliable and durable sealing solution, suitable for various industrial, automotive, and domestic applications . Made from robust materials, it ensures a precise fit, easy installation, and optimal performance even under demanding conditions such as high temperatures and pressures.
                                                                                                          €3.00Price
                                                                                                          En Stock
                                                                                                          €90.50 €120.66 Regular price -25% off Price
                                                                                                          En Stock
                                                                                                          €90.50 €120.66 Regular price -25% off Price
                                                                                                          Huile moteur HTX 3823 0W20 4LHuile moteur HTX 3823 0W20 4L
                                                                                                              Huile moteur HTX 3823 0W20 4L Référence: 7711167580
                                                                                                              €90.50€120.66Regular price-25% offPrice
                                                                                                              Huile moteur HTX 3823 0W20 4LHuile moteur HTX 3823 0W20 4L
                                                                                                                  Huile moteur HTX 3823 0W20 4L Référence: 7711167580
                                                                                                                  €90.50€120.66Regular price-25% offPrice
                                                                                                                  En Stock
                                                                                                                  €17.45 Price
                                                                                                                  En Stock
                                                                                                                  €17.45 Price
                                                                                                                  Support inférieur écope boitier filtre Twingo R2
                                                                                                                      Support inférieur écope boitier filtre Twingo R2 Référence: 7711167597
                                                                                                                      €17.45Price
                                                                                                                      Support inférieur écope boitier filtre Twingo R2
                                                                                                                          Support inférieur écope boitier filtre Twingo R2 Référence: 7711167597
                                                                                                                          €17.45Price
                                                                                                                          En Stock
                                                                                                                          €158.84 €252.12 Regular price -37% off Price
                                                                                                                          En Stock
                                                                                                                          €158.84 €252.12 Regular price -37% off Price
                                                                                                                          Kit Distribution origine Clio 2 RSGenuine Renault Timing Kit - Clio 2 RS / Gr N / Cup
                                                                                                                              Ensure your engine's longevity with this genuine RENAULT timing belt kit , engineered for the high-performance demands of the Renault Clio 2 RS , as well as Group N and X65 Cup racing versions. This complete pack guarantees maintenance that meets Renault Sport standards. ...
                                                                                                                              €158.84€252.12Regular price-37% offPrice
                                                                                                                              Kit Distribution origine Clio 2 RSGenuine Renault Timing Kit - Clio 2 RS / Gr N / Cup
                                                                                                                                  Ensure your engine's longevity with this genuine RENAULT timing belt kit , engineered for the high-performance demands of the Renault Clio 2 RS , as well as Group N and X65 Cup racing versions. This complete pack guarantees maintenance that meets Renault Sport standards. ...
                                                                                                                                  €158.84€252.12Regular price-37% offPrice
                                                                                                                                  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
                                                                                                                                          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
                                                                                                                                                  Kit Joint Spy Arbres à Cames + Vis de Poulie Clio 2 RS
                                                                                                                                                      Kit Joint Spy Arbres à Cames + Vis de Poulie Kit indispensable pour proceder au changement de la distribution sur Clio 2 RS
                                                                                                                                                      €54.58Price
                                                                                                                                                      Kit Joint Spy Arbres à Cames + Vis de Poulie Clio 2 RS
                                                                                                                                                          Kit Joint Spy Arbres à Cames + Vis de Poulie Kit indispensable pour proceder au changement de la distribution sur Clio 2 RS
                                                                                                                                                          €54.58Price
                                                                                                                                                          En Stock
                                                                                                                                                          €20.80 Price
                                                                                                                                                          En Stock
                                                                                                                                                          €20.80 Price
                                                                                                                                                          Exhaust Manifold Gasket | Renault Twingo 2 RS / R2
                                                                                                                                                              Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
                                                                                                                                                              €20.80Price
                                                                                                                                                              Exhaust Manifold Gasket | Renault Twingo 2 RS / R2
                                                                                                                                                                  Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
                                                                                                                                                                  €20.80Price
                                                                                                                                                                  En Stock
                                                                                                                                                                  €54.41 Price
                                                                                                                                                                  En Stock
                                                                                                                                                                  €54.41 Price
                                                                                                                                                                  Cache bouchons arbres à cames moteur F4R
                                                                                                                                                                      Cache bouchons arbres à cames moteur F4R Kit de 2 plaques de fermeture moteur 7711155481
                                                                                                                                                                      €54.41Price
                                                                                                                                                                      Cache bouchons arbres à cames moteur F4R
                                                                                                                                                                          Cache bouchons arbres à cames moteur F4R Kit de 2 plaques de fermeture moteur 7711155481
                                                                                                                                                                          €54.41Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €15.42 Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €15.42 Price
                                                                                                                                                                          Huile moteur Total quartz racing 10w60
                                                                                                                                                                              Huile moteur Total Quartz Racing 10w60 Produit préconisé par Renault sport pour la Mégane N4 Référence: 7711166390 Vendu en bidon de 1L
                                                                                                                                                                              €15.42Price
                                                                                                                                                                              Huile moteur Total quartz racing 10w60
                                                                                                                                                                                  Huile moteur Total Quartz Racing 10w60 Produit préconisé par Renault sport pour la Mégane N4 Référence: 7711166390 Vendu en bidon de 1L
                                                                                                                                                                                  €15.42Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €43.02 Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €43.02 Price
                                                                                                                                                                                  Joint Spy Vilebrequin coté distribution
                                                                                                                                                                                      The original Renault crankshaft oil seal, timing side is an essential part to ensure crankshaft sealing in the engines of your Renault Clio 2 RS , Clio 2 GR N , Clio 2 X65 Cup , Clio 3 RS , Clio R3 , Clio 3 X85 Cup , Mégane 2 RS , Mégane 3 RS , and...
                                                                                                                                                                                      €43.02Price
                                                                                                                                                                                      Joint Spy Vilebrequin coté distribution
                                                                                                                                                                                          The original Renault crankshaft oil seal, timing side is an essential part to ensure crankshaft sealing in the engines of your Renault Clio 2 RS , Clio 2 GR N , Clio 2 X65 Cup , Clio 3 RS , Clio R3 , Clio 3 X85 Cup , Mégane 2 RS , Mégane 3 RS , and...
                                                                                                                                                                                          €43.02Price
                                                                                                                                                                                          En Stock
                                                                                                                                                                                          €81.58 Price
                                                                                                                                                                                          En Stock
                                                                                                                                                                                          €81.58 Price
                                                                                                                                                                                          Flexible de carburant Té vers rampe Twingo R1 - Clio R3 Max
                                                                                                                                                                                              Do not let a preventable engine failure ruin your race weekend. This high-pressure fuel hose , an authentic Renault Sport component (references 7711160195 / 7711162420 ), is the critical link between the T-connector and the fuel injector rail . Specifically engineered for Twingo R1,...
                                                                                                                                                                                              €81.58Price
                                                                                                                                                                                              Flexible de carburant Té vers rampe Twingo R1 - Clio R3 Max
                                                                                                                                                                                                  Do not let a preventable engine failure ruin your race weekend. This high-pressure fuel hose , an authentic Renault Sport component (references 7711160195 / 7711162420 ), is the critical link between the T-connector and the fuel injector rail . Specifically engineered for Twingo R1,...
                                                                                                                                                                                                  €81.58Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €129.34 Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €129.34 Price
                                                                                                                                                                                                  Carter de protection Courroie de distribution Clio RS
                                                                                                                                                                                                      Pièce empêchant le passage de la courroie d'accessoires dans la distribution Compatible avec Clio 2 RS, Clio 3 RS La mise en place sur Clio 2 nécessite une legere découpe du carter en plastique  Fourni sans les vis, veuillez consulter les produits associés en bas de page
                                                                                                                                                                                                      €129.34Price
                                                                                                                                                                                                      Carter de protection Courroie de distribution Clio RS
                                                                                                                                                                                                          Pièce empêchant le passage de la courroie d'accessoires dans la distribution Compatible avec Clio 2 RS, Clio 3 RS La mise en place sur Clio 2 nécessite une legere découpe du carter en plastique  Fourni sans les vis, veuillez consulter les produits associés en bas de page
                                                                                                                                                                                                          €129.34Price
                                                                                                                                                                                                          Joint carter inférieur huile moteur Twingo RS y compris R1 et R2Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                                                                                                                                                              Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                                                                                                                                                              €95.21Price
                                                                                                                                                                                                              Joint carter inférieur huile moteur Twingo RS y compris R1 et R2Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                                                                                                                                                                  Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                                                                                                                                                                  €95.21Price
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €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