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Engine Parts & Tuning Hardware

Unleash Your Engine's Power: Performance Parts & Accessories

At Optimiz Access, we offer a vast lineup of engine performance parts and accessories to boost the output of your sports vehicle or premium automobile. Optimize your engine for extreme performance and enjoy an exhilarating driving experience on both road and track.

Key benefits of engine tuning: substantial horsepower and torque gains for rapid acceleration, sharper throttle response, enhanced mechanical reliability using high-strength components, and tailored custom tuning suited to all engines.

Essential Products to Maximize Engine Performance

Discover all our precision-engineered components designed to increase efficiency and durability in your engine block:

  • Cold Air Intakes & Air Filtration – Performance sports filters and carbon intake systems for maximum air filling.
  • Intercoolers & Charge Coolers – Efficient intake air cooling to sustain consistent power output under heavy loads.
  • Forged Pistons & Connecting Rods – Heavy-duty internal components built to withstand extreme temperatures and boost pressures.
  • Turbos & Superchargers – Forced induction upgrades delivering significant power increases.
  • Ignition & Servicing – Competition spark plugs, high-output ignition coils, and high-performance oil filters.

Industry-Leading Benchmark Brands

We stock top tuning and motorsport manufacturers: Wagner Tuning, Forge Motorsport, Magnecor, Green Filter, BMC Filter, NGK, Vibra Technics, and Powerflex. We also supply OEM factory parts to ensure meticulous engine maintenance.

Why you should Choose Optimiz Access for Your Engine Upgrades

Since 2010, Optimiz Access has specialized in selecting top-tier engine components for the custom upgrading and maintenance of sports vehicles. Located in northern France (Hauts-de-France) — near Lille, Valenciennes, Cambrai, Arras, Seclin, Douai, and Saint-Quentin —, our expert technicians guide your hardware selection and provide professional installation in our workshop. We ensure strict quality control along with fast worldwide shipping.

Unleash Your Engine's Full Potential Today

Give your car the raw power and sharp response it deserves. Trust the expertise of Optimiz Access, select your engine performance parts today, and benefit from our fast dispatch.

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  • Categories: Alimentation
  • Categories: Circuit d'air
  • Categories: Entretien
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
          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
                  €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
                          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
                                  Pompe essence modifiée Clio Gr NModified Fuel Pump DASH Fitting Renault Sport for Renault Clio 2 Gr N (7711129520)
                                    • Pack
                                    Do not take the risk of seeing the performance of your Renault Clio 2 Group N drop sharply. Without a stable and optimal fuel supply, you lose your advantage on the track. This modified fuel pump (Reference 7711129520 ) is the official Renault Sport part essential for maintaining...
                                    €269.74Price
                                    Pompe essence modifiée Clio Gr NModified Fuel Pump DASH Fitting Renault Sport for Renault Clio 2 Gr N (7711129520)
                                      • Pack
                                      Do not take the risk of seeing the performance of your Renault Clio 2 Group N drop sharply. Without a stable and optimal fuel supply, you lose your advantage on the track. This modified fuel pump (Reference 7711129520 ) is the official Renault Sport part essential for maintaining...
                                      €269.74Price
                                      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
                                              Joint répartiteur admission ( plenum ) Twingo 2 RS, R1 et R2
                                                  Joint répartiteur admission Twingo RS R1 et R2
                                                  €26.36Price
                                                  Joint répartiteur admission ( plenum ) Twingo 2 RS, R1 et R2
                                                      Joint répartiteur admission Twingo RS R1 et R2
                                                      €26.36Price
                                                      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
                                                              €251.47 Price
                                                              En Stock
                                                              €251.47 Price
                                                              Kit Joint Refection moteur Origine Megane 3 RSKit Joint Refection moteur Origine Megane 3 RS
                                                                  Ensemble de joints nécessaire au bon remontage du moteur de Megane 3 RS Véritable produit d'origine
                                                                  €251.47Price
                                                                  Kit Joint Refection moteur Origine Megane 3 RSKit Joint Refection moteur Origine Megane 3 RS
                                                                      Ensemble de joints nécessaire au bon remontage du moteur de Megane 3 RS Véritable produit d'origine
                                                                      €251.47Price
                                                                      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
                                                                              Joint de vidangeDrain Plug Seal Clio 4 RS / Mégane RS / Alpine A110
                                                                                  Renault Sport and Alpine Engine Drain Plug Seal The engine drain plug seal , reference 1102601M02 , is a sealing component used at the engine oil drain...
                                                                                  €2.92Price
                                                                                  Joint de vidangeDrain Plug Seal Clio 4 RS / Mégane RS / Alpine A110
                                                                                      Renault Sport and Alpine Engine Drain Plug Seal The engine drain plug seal , reference 1102601M02 , is a sealing component used at the engine oil drain...
                                                                                      €2.92Price
                                                                                      Pige de Calage Vilebrequin F4R Clio RS Megane RS
                                                                                          Prevent catastrophic engine failure during your timing belt replacement with this professional-grade Crankshaft Timing Pin F4R Clio RS Megane RS . Engineered specifically to match the official factory blueprints of Renault Sport power units, this high-tensile steel tool...
                                                                                          €41.40Price
                                                                                          Pige de Calage Vilebrequin F4R Clio RS Megane RS
                                                                                              Prevent catastrophic engine failure during your timing belt replacement with this professional-grade Crankshaft Timing Pin F4R Clio RS Megane RS . Engineered specifically to match the official factory blueprints of Renault Sport power units, this high-tensile steel tool...
                                                                                              €41.40Price
                                                                                              Joint anti-usure jonction écope divergent Twingo R2
                                                                                                  Joint anti-usure jonction écope divergent Twingo R2 Référence: 7711167594
                                                                                                  €8.48Price
                                                                                                  Joint anti-usure jonction écope divergent Twingo R2
                                                                                                      Joint anti-usure jonction écope divergent Twingo R2 Référence: 7711167594
                                                                                                      €8.48Price
                                                                                                      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
                                                                                                              €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
                                                                                                                      €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
                                                                                                                              Outil de blocage Poulie Arbres à cames F4R Clio RS Megane RSOutil de blocage Poulie Arbres à cames F4R Clio RS Megane RS
                                                                                                                                  Véritable outil d'origine pour le blocage des poulies d'arbres à cames nécessaire pour le remplacement de la distribution pour les moteurs F4R de Clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS. Kit Spécifique au F4R Renault Sport
                                                                                                                                  €139.02Price
                                                                                                                                  Outil de blocage Poulie Arbres à cames F4R Clio RS Megane RSOutil de blocage Poulie Arbres à cames F4R Clio RS Megane RS
                                                                                                                                      Véritable outil d'origine pour le blocage des poulies d'arbres à cames nécessaire pour le remplacement de la distribution pour les moteurs F4R de Clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS. Kit Spécifique au F4R Renault Sport
                                                                                                                                      €139.02Price
                                                                                                                                      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
                                                                                                                                              €45.46 Price
                                                                                                                                              En Stock
                                                                                                                                              €45.46 Price
                                                                                                                                              Adaptateur rallonge sonde pression d'huile Twingo R2Adaptateur rallonge sonde pression d'huile Twingo R2
                                                                                                                                                  Adaptateur rallonge sonde pression d'huile Twingo R2 Référence: 7711157208
                                                                                                                                                  €45.46Price
                                                                                                                                                  Adaptateur rallonge sonde pression d'huile Twingo R2Adaptateur rallonge sonde pression d'huile Twingo R2
                                                                                                                                                      Adaptateur rallonge sonde pression d'huile Twingo R2 Référence: 7711157208
                                                                                                                                                      €45.46Price
                                                                                                                                                      En Stock
                                                                                                                                                      €1.84 Price
                                                                                                                                                      En Stock
                                                                                                                                                      €1.84 Price
                                                                                                                                                      Collier serrage inox (durite) diametre 50-70mmCollier serrage inox (durite) diametre 50-70mm
                                                                                                                                                          Collier serrage inox (durite) diametre 50-70mm Vendu à l'unité
                                                                                                                                                          €1.84Price
                                                                                                                                                          Collier serrage inox (durite) diametre 50-70mmCollier serrage inox (durite) diametre 50-70mm
                                                                                                                                                              Collier serrage inox (durite) diametre 50-70mm Vendu à l'unité
                                                                                                                                                              €1.84Price
                                                                                                                                                              En Stock
                                                                                                                                                              €10.03 Price
                                                                                                                                                              En Stock
                                                                                                                                                              €10.03 Price
                                                                                                                                                              Bouchon étanchéité aac échappement
                                                                                                                                                                  Camshaft Exhaust End Sealing Plug – Renault The Renault camshaft sealing plug, reference 7700274026 , is an engine component designed to seal an opening in the cylinder head. It helps maintain...
                                                                                                                                                                  €10.03Price
                                                                                                                                                                  Bouchon étanchéité aac échappement
                                                                                                                                                                      Camshaft Exhaust End Sealing Plug – Renault The Renault camshaft sealing plug, reference 7700274026 , is an engine component designed to seal an opening in the cylinder head. It helps maintain...
                                                                                                                                                                      €10.03Price
                                                                                                                                                                      Kit joints spy et ecrous poulies arbre à cames Megane 2 RS
                                                                                                                                                                          Kit joints spy et ecrous poulies arbre à cames Megane 2 RS Véritable produit d'origine
                                                                                                                                                                          €49.33Price
                                                                                                                                                                          Kit joints spy et ecrous poulies arbre à cames Megane 2 RS
                                                                                                                                                                              Kit joints spy et ecrous poulies arbre à cames Megane 2 RS Véritable produit d'origine
                                                                                                                                                                              €49.33Price
                                                                                                                                                                              Banjo alimentation rampe essence Twingo R1 et R2 et Clio R3
                                                                                                                                                                                  Banjo alimentation rampe essence Twingo R1 et R2 et Clio R3 Référence: 7711160198
                                                                                                                                                                                  €57.72Price
                                                                                                                                                                                  Banjo alimentation rampe essence Twingo R1 et R2 et Clio R3
                                                                                                                                                                                      Banjo alimentation rampe essence Twingo R1 et R2 et Clio R3 Référence: 7711160198
                                                                                                                                                                                      €57.72Price
                                                                                                                                                                                      Tuyau carburant entre réservoir et coupling Goodridge Megane N4
                                                                                                                                                                                          Tuyau carburant entre réservoir et coupling Goodridge Megane N4 Référence: 7711167089
                                                                                                                                                                                          €173.57Price
                                                                                                                                                                                          Tuyau carburant entre réservoir et coupling Goodridge Megane N4
                                                                                                                                                                                              Tuyau carburant entre réservoir et coupling Goodridge Megane N4 Référence: 7711167089
                                                                                                                                                                                              €173.57Price
                                                                                                                                                                                              En Stock
                                                                                                                                                                                              €2.08 Price
                                                                                                                                                                                              En Stock
                                                                                                                                                                                              €2.08 Price
                                                                                                                                                                                              Collier serrage inox (durite) diametre 60-80mmCollier serrage inox (durite) diametre 60-80mm
                                                                                                                                                                                                  Collier serrage inox (durite) diametre 60-80mm Vendu à l'unité
                                                                                                                                                                                                  €2.08Price
                                                                                                                                                                                                  Collier serrage inox (durite) diametre 60-80mmCollier serrage inox (durite) diametre 60-80mm
                                                                                                                                                                                                      Collier serrage inox (durite) diametre 60-80mm Vendu à l'unité
                                                                                                                                                                                                      €2.08Price
                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                      €9.89 Price
                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                      €9.89 Price
                                                                                                                                                                                                      Plot Caoutchouc cache supérieur moteur Megane RS
                                                                                                                                                                                                          Plot Caoutchouc cache supérieur moteur Véritable produit d'origine pour Megane 2 RS et Megane 3 RS
                                                                                                                                                                                                          €9.89Price
                                                                                                                                                                                                          Plot Caoutchouc cache supérieur moteur Megane RS
                                                                                                                                                                                                              Plot Caoutchouc cache supérieur moteur Véritable produit d'origine pour Megane 2 RS et Megane 3 RS
                                                                                                                                                                                                              €9.89Price
                                                                                                                                                                                                              En Stock
                                                                                                                                                                                                              €25.69 Price
                                                                                                                                                                                                              En Stock
                                                                                                                                                                                                              €25.69 Price
                                                                                                                                                                                                              Vis Banjo alimentation rampe Twingo R1 et R2
                                                                                                                                                                                                                  Vis Banjo alimentation rampe Twingo R1 et R2 Référence: 7711129199
                                                                                                                                                                                                                  €25.69Price
                                                                                                                                                                                                                  Vis Banjo alimentation rampe Twingo R1 et R2
                                                                                                                                                                                                                      Vis Banjo alimentation rampe Twingo R1 et R2 Référence: 7711129199
                                                                                                                                                                                                                      €25.69Price
                                                                                                                                                                                                                      Joint de sonde de temperature d'eau Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                                                                                                          Joint de sonde de temperature d'eau Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                                                                                                          €2.47Price
                                                                                                                                                                                                                          Joint de sonde de temperature d'eau Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                                                                                                              Joint de sonde de temperature d'eau Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                                                                                                              €2.47Price