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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: Entretien
  • Categories: Préparation intérieure
  • Categories: Suralimentation (Turbo)
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
          €211.80 Price
          En Stock
          €211.80 Price
          Pompe à huileRenault Sport Oil Pump - Clio 2/3 RS & Megane 2/3 RS
              Secure your engine block's lubrication with this high-performance oil pump for Renault 2.0L engines. Essential for maintaining constant oil pressure, it is compatible with Clio 2 RS , Clio 3 RS , as well as X65 Cup ,...
              €211.80Price
              Pompe à huileRenault Sport Oil Pump - Clio 2/3 RS & Megane 2/3 RS
                  Secure your engine block's lubrication with this high-performance oil pump for Renault 2.0L engines. Essential for maintaining constant oil pressure, it is compatible with Clio 2 RS , Clio 3 RS , as well as X65 Cup ,...
                  €211.80Price
                  Collection de 48 grains de réglage soupapes Twingo R2 195-205
                      Collection de 48 grains de réglage soupapes Twingo R2 195-205 7711167645
                      €831.29Price
                      Collection de 48 grains de réglage soupapes Twingo R2 195-205
                          Collection de 48 grains de réglage soupapes Twingo R2 195-205 7711167645
                          €831.29Price
                          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
                                  €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
                                          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
                                                  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
                                                          Motul Engine Flush 300mL Pre-Oil Change for Sports Engines
                                                              Optimize your engine's health with Motul Engine Flush (300mL). This high-performance pre-oil change treatment is essential for removing deposits, sludge, and combustion residues before introducing fresh oil. Specially formulated for performance...
                                                              €10.75Price
                                                              Motul Engine Flush 300mL Pre-Oil Change for Sports Engines
                                                                  Optimize your engine's health with Motul Engine Flush (300mL). This high-performance pre-oil change treatment is essential for removing deposits, sludge, and combustion residues before introducing fresh oil. Specially formulated for performance...
                                                                  €10.75Price
                                                                  Dispo selon configuration
                                                                  €925.00 Price
                                                                  Dispo selon configuration
                                                                  €925.00 Price
                                                                  Echangeur Forge Clio 4 RSEchangeur Forge Clio 4 RS
                                                                      La dernière génération 1.6 turbo Renault Clio dispose d'un echangeur monté verticalement. L'endroit n' est pas ideal et trop petit pour la voiture standard. La solution pour les voitures Renault Clio Cup était de rénover l'ensemble du réseau avec un refroidissement par pulvérisation d'eau, mais ce fut insuffisant sur la piste après quelques tours. Notre solution était un échangeur monté...
                                                                      €925.00Price
                                                                      Echangeur Forge Clio 4 RSEchangeur Forge Clio 4 RS
                                                                          La dernière génération 1.6 turbo Renault Clio dispose d'un echangeur monté verticalement. L'endroit n' est pas ideal et trop petit pour la voiture standard. La solution pour les voitures Renault Clio Cup était de rénover l'ensemble du réseau avec un refroidissement par pulvérisation d'eau, mais ce fut insuffisant sur la piste après quelques tours. Notre solution était un échangeur monté...
                                                                          €925.00Price
                                                                          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
                                                                                  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
                                                                                          €1,326.07 Price
                                                                                          En Stock
                                                                                          €1,326.07 Price
                                                                                          AAC Admission loi 286TR2A2 Twingo R2 205
                                                                                              AAC Admission loi 286TR2A2 Twingo R2 205 Référence: 7711167674
                                                                                              €1,326.07Price
                                                                                              AAC Admission loi 286TR2A2 Twingo R2 205
                                                                                                  AAC Admission loi 286TR2A2 Twingo R2 205 Référence: 7711167674
                                                                                                  €1,326.07Price
                                                                                                  Collection Entrainement pompe à huile Clio 2 RS, Gr N et X65Cup
                                                                                                      Collection Entrainement pompe à huile Clio 2 RS, Gr N et X65Cup
                                                                                                      €54.25Price
                                                                                                      Collection Entrainement pompe à huile Clio 2 RS, Gr N et X65Cup
                                                                                                          Collection Entrainement pompe à huile Clio 2 RS, Gr N et X65Cup
                                                                                                          €54.25Price
                                                                                                          Dispo selon configuration
                                                                                                          €67.23 €74.70 Regular price -10% off Price
                                                                                                          Dispo selon configuration
                                                                                                          €67.23 €74.70 Regular price -10% off Price
                                                                                                          Kit Vidange Elf SXR 5w40 Clio 4 RS - Megane 4 GTKit Vidange Elf SXR 5w40 Clio 4 RS - Megane 4 GT
                                                                                                            • Pack
                                                                                                            Kit Vidange Elf Evolution SXR comprenant 3 bidons de 2 Litres d'huile Elf Evolution SXR 5w40 (préconisation Constructeur), 1 filtre à huile Renault et 1 joint de vidange
                                                                                                            €67.23€74.70Regular price-10% offPrice
                                                                                                            Kit Vidange Elf SXR 5w40 Clio 4 RS - Megane 4 GTKit Vidange Elf SXR 5w40 Clio 4 RS - Megane 4 GT
                                                                                                              • Pack
                                                                                                              Kit Vidange Elf Evolution SXR comprenant 3 bidons de 2 Litres d'huile Elf Evolution SXR 5w40 (préconisation Constructeur), 1 filtre à huile Renault et 1 joint de vidange
                                                                                                              €67.23€74.70Regular price-10% offPrice
                                                                                                              Electrovanne décalage arbre à cames (dephasage) Clio 3 RS phase 2 et Cup X85 et Megane 3 RS
                                                                                                                  Camshaft Phasing Solenoid Valve : genuine RENAULT part essential for the proper function and engine performance of your Renault Clio 3 RS Phase 2 and Renault Megane 3 RS . A faulty component leads to power loss and unstable idling. Ensures optimal...
                                                                                                                  €202.56Price
                                                                                                                  Electrovanne décalage arbre à cames (dephasage) Clio 3 RS phase 2 et Cup X85 et Megane 3 RS
                                                                                                                      Camshaft Phasing Solenoid Valve : genuine RENAULT part essential for the proper function and engine performance of your Renault Clio 3 RS Phase 2 and Renault Megane 3 RS . A faulty component leads to power loss and unstable idling. Ensures optimal...
                                                                                                                      €202.56Price
                                                                                                                      Dispo selon configuration
                                                                                                                      €6.00 Price
                                                                                                                      Dispo selon configuration
                                                                                                                      €6.00 Price
                                                                                                                      Tuyau de dépressionTuyau de dépression
                                                                                                                          Tuyau de depression de diamètre 4mm. Sert généralement pour l'installation de Dump Valve. Prix au metre
                                                                                                                          €6.00Price
                                                                                                                          Tuyau de dépressionTuyau de dépression
                                                                                                                              Tuyau de depression de diamètre 4mm. Sert généralement pour l'installation de Dump Valve. Prix au metre
                                                                                                                              €6.00Price
                                                                                                                              Carter Huile Clio 3 RS - Megane 3 RS - Megane 2 RSOEM Renault Oil Pan - Clio 3 RS, Megane 2 RS, Megane 3 RS
                                                                                                                                  Don't gamble with your engine's lubrication. This genuine Renault OEM oil pan is the only component that guarantees a perfect seal and thermal resistance meeting the strict requirements of your Renault Clio 3 RS , Megane 2 RS , or Megane 3 RS . By choosing this certified part, you avoid micro-cracks and warping issues common in...
                                                                                                                                  €265.93Price
                                                                                                                                  Carter Huile Clio 3 RS - Megane 3 RS - Megane 2 RSOEM Renault Oil Pan - Clio 3 RS, Megane 2 RS, Megane 3 RS
                                                                                                                                      Don't gamble with your engine's lubrication. This genuine Renault OEM oil pan is the only component that guarantees a perfect seal and thermal resistance meeting the strict requirements of your Renault Clio 3 RS , Megane 2 RS , or Megane 3 RS . By choosing this certified part, you avoid micro-cracks and warping issues common in...
                                                                                                                                      €265.93Price
                                                                                                                                      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
                                                                                                                                              Vis de bielle origine
                                                                                                                                                  Secure your performance engine's bottom end with this genuine RENAULT connecting rod bolt , sold individually. Engineered to withstand high RPMs, it is essential for the maintenance and personalization of Clio 2 RS , Clio 3 RS , Megane 2/3 RS , and Clio Williams ...
                                                                                                                                                  €8.56Price
                                                                                                                                                  Vis de bielle origine
                                                                                                                                                      Secure your performance engine's bottom end with this genuine RENAULT connecting rod bolt , sold individually. Engineered to withstand high RPMs, it is essential for the maintenance and personalization of Clio 2 RS , Clio 3 RS , Megane 2/3 RS , and Clio Williams ...
                                                                                                                                                      €8.56Price
                                                                                                                                                      En Stock
                                                                                                                                                      €47.34 Price
                                                                                                                                                      En Stock
                                                                                                                                                      €47.34 Price
                                                                                                                                                      Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2
                                                                                                                                                          Genuine Renault Exhaust Valve - Twingo 2 RS, Twingo R1, Twingo R2 160hp Authentic Renault exhaust valve, ensuring optimal sealing and performance. Specific replacement part for Renault Twingo 2 RS, Twingo R1, and Twingo R2 160hp models. Contributes to proper engine operation and efficient exhaust gas...
                                                                                                                                                          €47.34Price
                                                                                                                                                          Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2
                                                                                                                                                              Genuine Renault Exhaust Valve - Twingo 2 RS, Twingo R1, Twingo R2 160hp Authentic Renault exhaust valve, ensuring optimal sealing and performance. Specific replacement part for Renault Twingo 2 RS, Twingo R1, and Twingo R2 160hp models. Contributes to proper engine operation and efficient exhaust gas...
                                                                                                                                                              €47.34Price
                                                                                                                                                              Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65
                                                                                                                                                                  Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65 Référence : 7711065381
                                                                                                                                                                  €0.23Price
                                                                                                                                                                  Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65
                                                                                                                                                                      Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65 Référence : 7711065381
                                                                                                                                                                      €0.23Price
                                                                                                                                                                      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
                                                                                                                                                                                      En Stock
                                                                                                                                                                                      €23.50 Price
                                                                                                                                                                                      En Stock
                                                                                                                                                                                      €23.50 Price
                                                                                                                                                                                      Kit Revision Dump Valve Recirculation Forge
                                                                                                                                                                                          Kit revision pour Dump Valve Forge comprenant: - 1 sachet de graisse - un piston - joints toriques 
                                                                                                                                                                                          €23.50Price
                                                                                                                                                                                          Kit Revision Dump Valve Recirculation Forge
                                                                                                                                                                                              Kit revision pour Dump Valve Forge comprenant: - 1 sachet de graisse - un piston - joints toriques 
                                                                                                                                                                                              €23.50Price
                                                                                                                                                                                              Vis Fixation Volant Moteur
                                                                                                                                                                                                  Secure the transmission of power from your crankshaft to your clutch assembly with this heavy-duty Flywheel Fixing Bolt for the Renault Clio 16S, Williams, Clio 2 RS, and Clio 3 RS . This high-tensile specialist hardware is critical to enduring harsh rev matches and the...
                                                                                                                                                                                                  €5.64Price
                                                                                                                                                                                                  Vis Fixation Volant Moteur
                                                                                                                                                                                                      Secure the transmission of power from your crankshaft to your clutch assembly with this heavy-duty Flywheel Fixing Bolt for the Renault Clio 16S, Williams, Clio 2 RS, and Clio 3 RS . This high-tensile specialist hardware is critical to enduring harsh rev matches and the...
                                                                                                                                                                                                      €5.64Price
                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                      €720.00 Price
                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                      €720.00 Price
                                                                                                                                                                                                      Echangeur Airtec Megane 3 RSEchangeur Airtec Megane 3 RS
                                                                                                                                                                                                          Échangeur Airtec spécifique à la Mégane 3 RS. Échangeur de 60 mm se montant en lieu et place sans modifications et équipé d'une tôle permettant de diriger un plus gros flux d'air vers l’échangeur. Disponible en gris
                                                                                                                                                                                                          €720.00Price
                                                                                                                                                                                                          Echangeur Airtec Megane 3 RSEchangeur Airtec Megane 3 RS
                                                                                                                                                                                                              Échangeur Airtec spécifique à la Mégane 3 RS. Échangeur de 60 mm se montant en lieu et place sans modifications et équipé d'une tôle permettant de diriger un plus gros flux d'air vers l’échangeur. Disponible en gris
                                                                                                                                                                                                              €720.00Price
                                                                                                                                                                                                              En Stock
                                                                                                                                                                                                              €74.21 Price
                                                                                                                                                                                                              En Stock
                                                                                                                                                                                                              €74.21 Price
                                                                                                                                                                                                              Genuine Renault Crankshaft Sprocket - Multi-RS ModelsGenuine Renault Crankshaft Sprocket - Multi-RS Models
                                                                                                                                                                                                                  Genuine Renault Crankshaft Sprocket - Multi-RS Models Ensure the performance and reliability of your engine with this genuine Renault crankshaft sprocket. Compatible with Clio 2 RS, Clio 3 RS, Megane 2/3 RS and competition models. Essential part for timing adjustment.
                                                                                                                                                                                                                  €74.21Price
                                                                                                                                                                                                                  Genuine Renault Crankshaft Sprocket - Multi-RS ModelsGenuine Renault Crankshaft Sprocket - Multi-RS Models
                                                                                                                                                                                                                      Genuine Renault Crankshaft Sprocket - Multi-RS Models Ensure the performance and reliability of your engine with this genuine Renault crankshaft sprocket. Compatible with Clio 2 RS, Clio 3 RS, Megane 2/3 RS and competition models. Essential part for timing adjustment.
                                                                                                                                                                                                                      €74.21Price
                                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                                      €244.00 Price
                                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                                      €244.00 Price
                                                                                                                                                                                                                      Wasegate Forge Megane RS
                                                                                                                                                                                                                          Dotée d'un tarage plus ferme que le modèle d'origine, elle permet une mise en action plus rapide du turbo, et une pression de sural plus stable.
                                                                                                                                                                                                                          €244.00Price
                                                                                                                                                                                                                          Wasegate Forge Megane RS
                                                                                                                                                                                                                              Dotée d'un tarage plus ferme que le modèle d'origine, elle permet une mise en action plus rapide du turbo, et une pression de sural plus stable.
                                                                                                                                                                                                                              €244.00Price