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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: Allumage
  • Categories: Circuit d'air
  • Categories: Préparation intérieure
  • Categories: Suralimentation (Turbo)
Régulateur (membrane) pression gaz collecteur admission Clio 3 RS
      Régulateur pression gaz carter Clio 3 RS
      €61.60Price
      Régulateur (membrane) pression gaz collecteur admission Clio 3 RS
          €61.60Price
          Dispo selon configuration
          €330.87 €367.63 Regular price -€36.76 off Price
          Dispo selon configuration
          €330.87 €367.63 Regular price -€36.76 off Price
          Kit Dump Valve HKS Megane 3 RSKit Dump Valve HKS Megane 3 RS
            • Pack
            Kit Dump Valve HKS Megane 3 RS Le kit est complet et permet donc de monter une dump HKS sans necessité d'acheter d'autres pieces.
            €330.87€367.63Regular price-€36.76 offPrice
            Kit Dump Valve HKS Megane 3 RSKit Dump Valve HKS Megane 3 RS
              • Pack
              Kit Dump Valve HKS Megane 3 RS Le kit est complet et permet donc de monter une dump HKS sans necessité d'acheter d'autres pieces.
              €330.87€367.63Regular price-€36.76 offPrice
              En Stock
              €149.05 €212.93 Regular price -30% off Price
              En Stock
              €149.05 €212.93 Regular price -30% off Price
              Jeu de Bougies Renault Clio 4 RS
                  Set of 4 spark plugs for...
                  €149.05€212.93Regular price-30% offPrice
                  Jeu de Bougies Renault Clio 4 RS
                      Set of 4 spark plugs for...
                      €149.05€212.93Regular price-30% offPrice
                      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
                              Durite Admission Clio 2 RSSilicone Air Induction Hose for Renault Clio 2 RS
                                  Stop letting a perished or cracked factory hose choke your Clio 2 RS engine. This reinforced silicone induction hose is a direct replacement for the OEM rubber part, which is notorious for collapsing under vacuum. Available in various colors for a subtle or race-inspired customization , it ensures...
                                  €69.00Price
                                  Durite Admission Clio 2 RSSilicone Air Induction Hose for Renault Clio 2 RS
                                      Stop letting a perished or cracked factory hose choke your Clio 2 RS engine. This reinforced silicone induction hose is a direct replacement for the OEM rubber part, which is notorious for collapsing under vacuum. Available in various colors for a subtle or race-inspired customization , it ensures...
                                      €69.00Price
                                      En Stock
                                      €133.39 Price
                                      En Stock
                                      €133.39 Price
                                      Joint de Culasse Cometic Clio 16S /WilliamsJoint de Culasse Cometic Clio 16S /Williams
                                          Joint de culasse Cometic. Haute résistance. Alesage 83 mm , Epaisseur 0.76 Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. Nous contacter pour connaitre les épaisseurs possibles D'autres alesages et épaisseur disponibles, nous contacter.
                                          €133.39Price
                                          Joint de Culasse Cometic Clio 16S /WilliamsJoint de Culasse Cometic Clio 16S /Williams
                                              Joint de culasse Cometic. Haute résistance. Alesage 83 mm , Epaisseur 0.76 Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. Nous contacter pour connaitre les épaisseurs possibles D'autres alesages et épaisseur disponibles, nous contacter.
                                              €133.39Price
                                              En Stock
                                              €12.50 Price
                                              En Stock
                                              €12.50 Price
                                              Joint Collecteur Admission Clio 3 RS
                                                  Joint Collecteur Admission Clio 3 RS Joint permettant de faire l’étanchéité entre le moteur et le collecteur d'admission. Il est conseillé de le changer lors à chaque démontage
                                                  €12.50Price
                                                  Joint Collecteur Admission Clio 3 RS
                                                      Joint Collecteur Admission Clio 3 RS Joint permettant de faire l’étanchéité entre le moteur et le collecteur d'admission. Il est conseillé de le changer lors à chaque démontage
                                                      €12.50Price
                                                      En Stock
                                                      €36.01 Price
                                                      En Stock
                                                      €36.01 Price
                                                      Kit ressorts Dump Valve Forge
                                                          Kit comprenant plusieurs ressorts pour ajuster vos Dump Valve Ne convient pas pour les références de dump suivantes : FMDVFSIT, FMDVFSITVR et FMDVK04D Kit permettant l'optimisation de votre Dump afin de l'ajuster à vos autres modifications (préparation). Il est composé de 4 ressorts de remplacement. Couleurs des ressorts et pressions correspondantes: Vert 0,3 à 1,03 Bar Jaune 1.03 à 1,53 Bar...
                                                          €36.01Price
                                                          Kit ressorts Dump Valve Forge
                                                              Kit comprenant plusieurs ressorts pour ajuster vos Dump Valve Ne convient pas pour les références de dump suivantes : FMDVFSIT, FMDVFSITVR et FMDVK04D Kit permettant l'optimisation de votre Dump afin de l'ajuster à vos autres modifications (préparation). Il est composé de 4 ressorts de remplacement. Couleurs des ressorts et pressions correspondantes: Vert 0,3 à 1,03 Bar Jaune 1.03 à 1,53 Bar...
                                                              €36.01Price
                                                              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
                                                                      €36.05 Price
                                                                      En Stock
                                                                      €36.05 Price
                                                                      Jeu de Bougies Renault Clio 16S
                                                                          Jeu de Bougies Renault (fabriqué par NGK) (Vendu par 4) pour Clio 16S Produit d'origine Renault
                                                                          €36.05Price
                                                                          Jeu de Bougies Renault Clio 16S
                                                                              Jeu de Bougies Renault (fabriqué par NGK) (Vendu par 4) pour Clio 16S Produit d'origine Renault
                                                                              €36.05Price
                                                                              En Stock
                                                                              €70.25 Price
                                                                              En Stock
                                                                              €70.25 Price
                                                                              Blue Crankshaft Half-Bearing Set
                                                                                  Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                                                                                  €70.25Price
                                                                                  Blue Crankshaft Half-Bearing Set
                                                                                      Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                                                                                      €70.25Price
                                                                                      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
                                                                                              Jeu de Bougies NGK PFR7ZTG
                                                                                                  Maximize your engine's combustion cycle with this set of NGK PFR7ZTG Spark Plugs . Specifically engineered for the high-performance demands of Renault Sport engines, including the Clio 3 RS and Megane 2 RS , these plugs...
                                                                                                  €53.99Price
                                                                                                  Jeu de Bougies NGK PFR7ZTG
                                                                                                      Maximize your engine's combustion cycle with this set of NGK PFR7ZTG Spark Plugs . Specifically engineered for the high-performance demands of Renault Sport engines, including the Clio 3 RS and Megane 2 RS , these plugs...
                                                                                                      €53.99Price
                                                                                                      En Stock
                                                                                                      €3.16 Price
                                                                                                      En Stock
                                                                                                      €3.16 Price
                                                                                                      Clip maintien support linguet Twingo R2 195/205
                                                                                                          Clip maintien support linguet Twingo R2 195/205 Référence: 7711167614
                                                                                                          €3.16Price
                                                                                                          Clip maintien support linguet Twingo R2 195/205
                                                                                                              Clip maintien support linguet Twingo R2 195/205 Référence: 7711167614
                                                                                                              €3.16Price
                                                                                                              En Stock
                                                                                                              €220.46 Price
                                                                                                              En Stock
                                                                                                              €220.46 Price
                                                                                                              Dump Valve Forge Recirculation Megane RS
                                                                                                                  Maximize your engine's responsiveness with the Forge Motorsport Recirculation Dump Valve for Renault Megane 2 RS and Megane 3 RS (reference FMDVRMR ). Unlike atmospheric blow-off valves, this recirculation version diverts air back into the intake system to...
                                                                                                                  €220.46Price
                                                                                                                  Dump Valve Forge Recirculation Megane RS
                                                                                                                      Maximize your engine's responsiveness with the Forge Motorsport Recirculation Dump Valve for Renault Megane 2 RS and Megane 3 RS (reference FMDVRMR ). Unlike atmospheric blow-off valves, this recirculation version diverts air back into the intake system to...
                                                                                                                      €220.46Price
                                                                                                                      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
                                                                                                                              Multi-layer reinforced silicone turbo boost hose kit by Forge Motorsport for Renault Megane 2 RS.Silicone Turbo Hose Kit Forge | Renault Megane 2 RS
                                                                                                                                  Do not risk a sudden loss of boost pressure during a hard acceleration pull, a split factory duct caused by extreme engine bay heat, or an efficiency drop at your intercooler cores. The premium Kit Durites (Tubulures) Turbo Forge Motorsport pour Megane 2 RS replaces...
                                                                                                                                  €241.00Price
                                                                                                                                  Multi-layer reinforced silicone turbo boost hose kit by Forge Motorsport for Renault Megane 2 RS.Silicone Turbo Hose Kit Forge | Renault Megane 2 RS
                                                                                                                                      Do not risk a sudden loss of boost pressure during a hard acceleration pull, a split factory duct caused by extreme engine bay heat, or an efficiency drop at your intercooler cores. The premium Kit Durites (Tubulures) Turbo Forge Motorsport pour Megane 2 RS replaces...
                                                                                                                                      €241.00Price
                                                                                                                                      Reinforced silicone intercooler boost hose kit Forge Motorsport FMKTRC for Renault Clio 4 RS. black
                                                                                                                                          Prevent boost pressure leaks and protect your intake system with the premium Forge Motorsport Silicon Turbo Hose Kit FMKTRC for Clio 4 RS . Manufactured from high-tensile, multi-layer reinforced silicone, this kit directly replaces factory rubber lines that are prone to...
                                                                                                                                          €230.39Price
                                                                                                                                          Reinforced silicone intercooler boost hose kit Forge Motorsport FMKTRC for Renault Clio 4 RS. black
                                                                                                                                              Prevent boost pressure leaks and protect your intake system with the premium Forge Motorsport Silicon Turbo Hose Kit FMKTRC for Clio 4 RS . Manufactured from high-tensile, multi-layer reinforced silicone, this kit directly replaces factory rubber lines that are prone to...
                                                                                                                                              €230.39Price
                                                                                                                                              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
                                                                                                                                                      Fixations Forge Capteur Sur RadiateurFORGE MOTORSPORT FMRCLMP Sensor Securing Kit - Megane 2 RS
                                                                                                                                                          Secure the sensors of your Megane 2 RS with the FORGE MOTORSPORT FMRCLMP kit. Composed of 2 reinforcements, it ensures optimal support for the depression hose and pressure sensor. Avoid performance losses and reliability issues.
                                                                                                                                                          €36.80Price
                                                                                                                                                          Fixations Forge Capteur Sur RadiateurFORGE MOTORSPORT FMRCLMP Sensor Securing Kit - Megane 2 RS
                                                                                                                                                              Secure the sensors of your Megane 2 RS with the FORGE MOTORSPORT FMRCLMP kit. Composed of 2 reinforcements, it ensures optimal support for the depression hose and pressure sensor. Avoid performance losses and reliability issues.
                                                                                                                                                              €36.80Price
                                                                                                                                                              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
                                                                                                                                                                      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
                                                                                                                                                                              En Stock
                                                                                                                                                                              €80.84 €115.49 Regular price -30% off Price
                                                                                                                                                                              En Stock
                                                                                                                                                                              €80.84 €115.49 Regular price -30% off Price
                                                                                                                                                                              Jeu de Bougies Origine Megane 3 RS et N4
                                                                                                                                                                                  Do not let poor combustion stifle the potential of your F4RT engine. This set of 4 genuine Renault spark plugs is specifically calibrated to meet the extreme thermal demands of the Renault Megane 3 RS (250, 265, and 275 hp). By choosing these manufacturer-certified plugs, you avoid misfires under full load and protect your cylinders from the risks of...
                                                                                                                                                                                  €80.84€115.49Regular price-30% offPrice
                                                                                                                                                                                  Jeu de Bougies Origine Megane 3 RS et N4
                                                                                                                                                                                      Do not let poor combustion stifle the potential of your F4RT engine. This set of 4 genuine Renault spark plugs is specifically calibrated to meet the extreme thermal demands of the Renault Megane 3 RS (250, 265, and 275 hp). By choosing these manufacturer-certified plugs, you avoid misfires under full load and protect your cylinders from the risks of...
                                                                                                                                                                                      €80.84€115.49Regular price-30% offPrice
                                                                                                                                                                                      En Stock
                                                                                                                                                                                      €150.77 Price
                                                                                                                                                                                      En Stock
                                                                                                                                                                                      €150.77 Price
                                                                                                                                                                                      Bride de turbo Megane N4
                                                                                                                                                                                          Official Renault Megane N4 Rally Turbo Flange (Ref: 7711167131) : Original part, guaranteeing performance and reliability for your Renault Megane 3 RS prepared for competition. Don't let an unsuitable flange compromise your turbo's potential. Discover related products, including the O-ring, at the bottom of this page.
                                                                                                                                                                                          €150.77Price
                                                                                                                                                                                          Bride de turbo Megane N4
                                                                                                                                                                                              Official Renault Megane N4 Rally Turbo Flange (Ref: 7711167131) : Original part, guaranteeing performance and reliability for your Renault Megane 3 RS prepared for competition. Don't let an unsuitable flange compromise your turbo's potential. Discover related products, including the O-ring, at the bottom of this page.
                                                                                                                                                                                              €150.77Price
                                                                                                                                                                                              En Stock
                                                                                                                                                                                              €17.45 Price
                                                                                                                                                                                              En Stock
                                                                                                                                                                                              €17.45 Price
                                                                                                                                                                                              Support inférieur écope boitier filtre Twingo R2
                                                                                                                                                                                                  Support inférieur écope boitier filtre Twingo R2 Référence: 7711167597
                                                                                                                                                                                                  €17.45Price
                                                                                                                                                                                                  Support inférieur écope boitier filtre Twingo R2
                                                                                                                                                                                                      Support inférieur écope boitier filtre Twingo R2 Référence: 7711167597
                                                                                                                                                                                                      €17.45Price