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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: Support moteur
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
          €88.16 Price
          En Stock
          €88.16 Price
          Bougies Iridium Denso Megane RS
              Denso Iridium Spark Plugs for Mégane RS - Maximum Performance and Reliability Boost your Mégane RS's performance with Denso Iridium spark plugs, designed to deliver a stronger spark and more efficient combustion. With their iridium electrode, these spark plugs ensure better engine responsiveness, optimized fuel consumption, and increased longevity compared to standard plugs. ...
              €88.16Price
              Bougies Iridium Denso Megane RS
                  Denso Iridium Spark Plugs for Mégane RS - Maximum Performance and Reliability Boost your Mégane RS's performance with Denso Iridium spark plugs, designed to deliver a stronger spark and more efficient combustion. With their iridium electrode, these spark plugs ensure better engine responsiveness, optimized fuel consumption, and increased longevity compared to standard plugs. ...
                  €88.16Price
                  En Stock
                  €71.22 €79.33 Regular price -€8.11 off Price
                  En Stock
                  €71.22 €79.33 Regular price -€8.11 off Price
                  Jeu de 4 Bougies Clio 2 RS y compris Gr N et X65 Cup
                      Set of 4 Original Renault Spark Plugs - Clio 2 RS / Gr N / X65 Cup Optimize the performance of your Renault Clio 2 RS with this set of 4 original Renault spark plugs. Essential for perfect ignition and optimal combustion. Compatibility: Clio 2 RS, Clio 2 Gr N, Clio 2 X65 Cup. Original Renault Part Set of 4 spark plugs ...
                      €71.22€79.33Regular price-€8.11 offPrice
                      Jeu de 4 Bougies Clio 2 RS y compris Gr N et X65 Cup
                          Set of 4 Original Renault Spark Plugs - Clio 2 RS / Gr N / X65 Cup Optimize the performance of your Renault Clio 2 RS with this set of 4 original Renault spark plugs. Essential for perfect ignition and optimal combustion. Compatibility: Clio 2 RS, Clio 2 Gr N, Clio 2 X65 Cup. Original Renault Part Set of 4 spark plugs ...
                          €71.22€79.33Regular price-€8.11 offPrice
                          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
                                  En Stock
                                  €197.06 Price
                                  En Stock
                                  €197.06 Price
                                  Poulie de dephasage Clio 3 RS - Megane 3 RSPoulie de dephasage Clio 3 RS - Megane 3 RS
                                      Poulie de déphasage Veritable Produit Renault vendu dans sa boite
                                      €197.06Price
                                      Poulie de dephasage Clio 3 RS - Megane 3 RSPoulie de dephasage Clio 3 RS - Megane 3 RS
                                          Poulie de déphasage Veritable Produit Renault vendu dans sa boite
                                          €197.06Price
                                          En Stock
                                          €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
                                                  €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
                                                          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
                                                                  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
                                                                          €12.00 Price
                                                                          En Stock
                                                                          €12.00 Price
                                                                          Bidon de 2 L ELF 700 ST 10w40Bidon de 2 L ELF 700 ST 10w40
                                                                              Bidon de 2L de ELF 700 ST 10W40 Huile Préconisé par Renault l'entretien de la gamme RS comprenant Clio 16S et Williams, Twingo RS, Clio RS, Megane RS..
                                                                              €12.00Price
                                                                              Bidon de 2 L ELF 700 ST 10w40Bidon de 2 L ELF 700 ST 10w40
                                                                                  Bidon de 2L de ELF 700 ST 10W40 Huile Préconisé par Renault l'entretien de la gamme RS comprenant Clio 16S et Williams, Twingo RS, Clio RS, Megane RS..
                                                                                  €12.00Price
                                                                                  En Stock
                                                                                  €1.32 Price
                                                                                  En Stock
                                                                                  €1.32 Price
                                                                                  Joint Vidange Boite diam 16
                                                                                      Gearbox Drain Plug Washer – 16 mm The Renault drain plug washer, reference 7703062062 , is a sealing component designed to help prevent oil leaks at a compatible drain...
                                                                                      €1.32Price
                                                                                      Joint Vidange Boite diam 16
                                                                                          Gearbox Drain Plug Washer – 16 mm The Renault drain plug washer, reference 7703062062 , is a sealing component designed to help prevent oil leaks at a compatible drain...
                                                                                          €1.32Price
                                                                                          En Stock
                                                                                          €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
                                                                                                  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
                                                                                                          €112.69 Price
                                                                                                          En Stock
                                                                                                          €112.69 Price
                                                                                                          Vis de Culasse (x10)
                                                                                                              Ensemble de vis de culasse pour Clio 3 RS, Megane 2 RS, Megane 3 RS, Clio 2 RS et Megane 2 RS Véritable produit d'origine
                                                                                                              €112.69Price
                                                                                                              Vis de Culasse (x10)
                                                                                                                  Ensemble de vis de culasse pour Clio 3 RS, Megane 2 RS, Megane 3 RS, Clio 2 RS et Megane 2 RS Véritable produit d'origine
                                                                                                                  €112.69Price
                                                                                                                  En Stock
                                                                                                                  €20.80 Price
                                                                                                                  En Stock
                                                                                                                  €20.80 Price
                                                                                                                  Exhaust Manifold Gasket | Renault Twingo 2 RS / R2
                                                                                                                      Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
                                                                                                                      €20.80Price
                                                                                                                      Exhaust Manifold Gasket | Renault Twingo 2 RS / R2
                                                                                                                          Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
                                                                                                                          €20.80Price
                                                                                                                          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
                                                                                                                                  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
                                                                                                                                          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
                                                                                                                                                  En Stock
                                                                                                                                                  €22.74 Price
                                                                                                                                                  En Stock
                                                                                                                                                  €22.74 Price
                                                                                                                                                  Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                                                                                                                                                      Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                                                                                                                                                      €22.74Price
                                                                                                                                                      Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                                                                                                                                                          Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                                                                                                                                                          €22.74Price
                                                                                                                                                          En Stock
                                                                                                                                                          €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
                                                                                                                                                                  €198.25 Price
                                                                                                                                                                  En Stock
                                                                                                                                                                  €198.25 Price
                                                                                                                                                                  Kit Joint Refection moteur Origine Clio 3 RS
                                                                                                                                                                      Ensemble de joints nécéssaire au bon remontage du moteur de Clio 3 RS Véritable produit d'origine
                                                                                                                                                                      €198.25Price
                                                                                                                                                                      Kit Joint Refection moteur Origine Clio 3 RS
                                                                                                                                                                          Ensemble de joints nécéssaire au bon remontage du moteur de Clio 3 RS Véritable produit d'origine
                                                                                                                                                                          €198.25Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €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
                                                                                                                                                                                  €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
                                                                                                                                                                                          Renault Sport camshaft alignment tool for F4R, F4Rt, and K4M engines, SKU: 1496.Camshaft Timing Tool | Renault Clio, Megane, Twingo RS
                                                                                                                                                                                              Protect your engine block against catastrophic mechanical failure during structural timing belt overhauls with this professional RENAULT Camshaft Timing Tool . Specifically engineered to slot into the rear alignment grooves of Renault Sport twin-cam engines (covering F4R,...
                                                                                                                                                                                              €96.37Price
                                                                                                                                                                                              Renault Sport camshaft alignment tool for F4R, F4Rt, and K4M engines, SKU: 1496.Camshaft Timing Tool | Renault Clio, Megane, Twingo RS
                                                                                                                                                                                                  Protect your engine block against catastrophic mechanical failure during structural timing belt overhauls with this professional RENAULT Camshaft Timing Tool . Specifically engineered to slot into the rear alignment grooves of Renault Sport twin-cam engines (covering F4R,...
                                                                                                                                                                                                  €96.37Price
                                                                                                                                                                                                  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
                                                                                                                                                                                                          Goodridge braided stainless steel tank-to-Tee fuel line part 7711160196 for Renault Twingo R1 R2 & Clio R3.
                                                                                                                                                                                                              Do not risk a sudden drop in fuel pressure during a crucial rally stage, a highly inflammable fuel leak underneath your chassis, or an immediate technical disqualification during safety scrutineering. The genuine Goodridge fuel tank-to-Tee piece braided line , carrying the...
                                                                                                                                                                                                              €119.40Price
                                                                                                                                                                                                              Goodridge braided stainless steel tank-to-Tee fuel line part 7711160196 for Renault Twingo R1 R2 & Clio R3.
                                                                                                                                                                                                                  Do not risk a sudden drop in fuel pressure during a crucial rally stage, a highly inflammable fuel leak underneath your chassis, or an immediate technical disqualification during safety scrutineering. The genuine Goodridge fuel tank-to-Tee piece braided line , carrying the...
                                                                                                                                                                                                                  €119.40Price
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €224.35 Price
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €224.35 Price
                                                                                                                                                                                                                  Kit Joint Refection moteur Origine Clio 2 RS
                                                                                                                                                                                                                      Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
                                                                                                                                                                                                                      €224.35Price
                                                                                                                                                                                                                      Kit Joint Refection moteur Origine Clio 2 RS
                                                                                                                                                                                                                          Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
                                                                                                                                                                                                                          €224.35Price