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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: Préparation intérieure
  • Categories: Suralimentation (Turbo)
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
          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
                  €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
                          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
                              Durite Forge Admission Megane 2 RSForge Silicone Intake Hose Megane 2 RS
                                  Forge Motorsport Silicone Intake Hose for Renault Megane 2 RS Optimize the airflow to your Renault Megane 2 RS engine with this high-quality silicone intake hose from Forge Motorsport (ref: FMRMBHS). Available in several colors. Connects to the throttle body. Discover associated products at the bottom of the page.
                                  €44.99Price
                                  Durite Forge Admission Megane 2 RSForge Silicone Intake Hose Megane 2 RS
                                      Forge Motorsport Silicone Intake Hose for Renault Megane 2 RS Optimize the airflow to your Renault Megane 2 RS engine with this high-quality silicone intake hose from Forge Motorsport (ref: FMRMBHS). Available in several colors. Connects to the throttle body. Discover associated products at the bottom of the page.
                                      €44.99Price
                                      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
                                              €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
                                                      Goodridge braided stainless steel tank-to-Tee fuel line part 7711160196 for Renault Twingo R1 R2 & Clio R3.
                                                          Do not risk a sudden drop in fuel pressure during a crucial rally stage, a highly inflammable fuel leak underneath your chassis, or an immediate technical disqualification during safety scrutineering. The genuine Goodridge fuel tank-to-Tee piece braided line , carrying the...
                                                          €119.40Price
                                                          Goodridge braided stainless steel tank-to-Tee fuel line part 7711160196 for Renault Twingo R1 R2 & Clio R3.
                                                              Do not risk a sudden drop in fuel pressure during a crucial rally stage, a highly inflammable fuel leak underneath your chassis, or an immediate technical disqualification during safety scrutineering. The genuine Goodridge fuel tank-to-Tee piece braided line , carrying the...
                                                              €119.40Price
                                                              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
                                                                      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
                                                                              Tuyau carburant entre coupling Goodridge et rampe Megane N4
                                                                                  Tuyau carburant entre coupling Goodridge et rampe Megane N4 Référence: 7711167090
                                                                                  €146.16Price
                                                                                  Tuyau carburant entre coupling Goodridge et rampe Megane N4
                                                                                      Tuyau carburant entre coupling Goodridge et rampe Megane N4 Référence: 7711167090
                                                                                      €146.16Price
                                                                                      En Stock
                                                                                      €92.35 Price
                                                                                      En Stock
                                                                                      €92.35 Price
                                                                                      Support Pédale Accélérateur Clio 3 X85 Cup
                                                                                          Support Pédale Accélérateur Clio 3 X85 Cup Référence: 7711160177
                                                                                          €92.35Price
                                                                                          Support Pédale Accélérateur Clio 3 X85 Cup
                                                                                              Support Pédale Accélérateur Clio 3 X85 Cup Référence: 7711160177
                                                                                              €92.35Price
                                                                                              Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
                                                                                                  Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
                                                                                                  €41.95Price
                                                                                                  Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
                                                                                                      Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
                                                                                                      €41.95Price
                                                                                                      En Stock
                                                                                                      €486.55 Price
                                                                                                      En Stock
                                                                                                      €486.55 Price
                                                                                                      Collecteur admission Clio 2 X65 Cup et Gr N
                                                                                                          Collecteur admission Clio 2 X65 Cup et Gr N Prévu pour papillon mécanique
                                                                                                          €486.55Price
                                                                                                          Collecteur admission Clio 2 X65 Cup et Gr N
                                                                                                              Collecteur admission Clio 2 X65 Cup et Gr N Prévu pour papillon mécanique
                                                                                                              €486.55Price
                                                                                                              En Stock
                                                                                                              €220.69 Price
                                                                                                              En Stock
                                                                                                              €220.69 Price
                                                                                                              Conduit air HP entrée boitier Clio 4 RSConduit air HP entrée boitier Clio 4 RS
                                                                                                                  Conduit air HP entrée boitier Clio 4 RS Permet de remplacer le produit qui s'ouvre de temps en temps sous la pression du Turbo Produit d'origine
                                                                                                                  €220.69Price
                                                                                                                  Conduit air HP entrée boitier Clio 4 RSConduit air HP entrée boitier Clio 4 RS
                                                                                                                      Conduit air HP entrée boitier Clio 4 RS Permet de remplacer le produit qui s'ouvre de temps en temps sous la pression du Turbo Produit d'origine
                                                                                                                      €220.69Price
                                                                                                                      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
                                                                                                                              Câble accélérateur Clio 3 X85 Cup
                                                                                                                                  Don't let a seized cable compromise your responsiveness on the track. This official Renault Sport throttle cable is specifically designed for the Renault Clio 3 X85 Cup . Genuine manufacturer part (Reference 7711160160). High-resistance design for intensive competition ...
                                                                                                                                  €52.69Price
                                                                                                                                  Câble accélérateur Clio 3 X85 Cup
                                                                                                                                      Don't let a seized cable compromise your responsiveness on the track. This official Renault Sport throttle cable is specifically designed for the Renault Clio 3 X85 Cup . Genuine manufacturer part (Reference 7711160160). High-resistance design for intensive competition ...
                                                                                                                                      €52.69Price
                                                                                                                                      En Stock
                                                                                                                                      €35.68 Price
                                                                                                                                      En Stock
                                                                                                                                      €35.68 Price
                                                                                                                                      Butée basse pédale d'accélérateur Twingo R2Butée basse pédale d'accélérateur Twingo R2
                                                                                                                                          Butée basse pédale d'accélérateur Twingo R2 Référence: 7711157182
                                                                                                                                          €35.68Price
                                                                                                                                          Butée basse pédale d'accélérateur Twingo R2Butée basse pédale d'accélérateur Twingo R2
                                                                                                                                              Butée basse pédale d'accélérateur Twingo R2 Référence: 7711157182
                                                                                                                                              €35.68Price
                                                                                                                                              En Stock
                                                                                                                                              €133.56 Price
                                                                                                                                              En Stock
                                                                                                                                              €133.56 Price
                                                                                                                                              Piston équipé indice B (X82.70) Clio 3 RS et X85 Cup
                                                                                                                                                  Piston équipé indice B (X=82.70) Clio 3 RS et X85 Cup Piston d'origine
                                                                                                                                                  €133.56Price
                                                                                                                                                  Piston équipé indice B (X82.70) Clio 3 RS et X85 Cup
                                                                                                                                                      Piston équipé indice B (X=82.70) Clio 3 RS et X85 Cup Piston d'origine
                                                                                                                                                      €133.56Price
                                                                                                                                                      Joint cuivre de bouchon de rampe Twingo R1 et R2 et Clio R3
                                                                                                                                                          Joint cuivre de bouchon de rampe Twingo R1 et R2 et Clio R3 Référence: 7903062105
                                                                                                                                                          €4.16Price
                                                                                                                                                          Joint cuivre de bouchon de rampe Twingo R1 et R2 et Clio R3
                                                                                                                                                              Joint cuivre de bouchon de rampe Twingo R1 et R2 et Clio R3 Référence: 7903062105
                                                                                                                                                              €4.16Price
                                                                                                                                                              Joint de conduit d'air sortie de turbo Clio 4 RS - Megane 4 GT et RS
                                                                                                                                                                  Ensure absolute air tightness within your forced induction system with the Genuine Renault Turbo Outlet Air Duct Gasket . Specifically calibrated to withstand the high pressures of turbocharged engines, this official O-ring eliminates boost leaks between the turbocharger and...
                                                                                                                                                                  €15.34Price
                                                                                                                                                                  Joint de conduit d'air sortie de turbo Clio 4 RS - Megane 4 GT et RS
                                                                                                                                                                      Ensure absolute air tightness within your forced induction system with the Genuine Renault Turbo Outlet Air Duct Gasket . Specifically calibrated to withstand the high pressures of turbocharged engines, this official O-ring eliminates boost leaks between the turbocharger and...
                                                                                                                                                                      €15.34Price
                                                                                                                                                                      En Stock
                                                                                                                                                                      €1.00 Price
                                                                                                                                                                      En Stock
                                                                                                                                                                      €1.00 Price
                                                                                                                                                                      Collier serrage inox (durite) diametre 8-12mm
                                                                                                                                                                          Collier serrage inox (durite) diametre 8-12mm Vendu à l'unité
                                                                                                                                                                          €1.00Price
                                                                                                                                                                          Collier serrage inox (durite) diametre 8-12mm
                                                                                                                                                                              Collier serrage inox (durite) diametre 8-12mm Vendu à l'unité
                                                                                                                                                                              €1.00Price
                                                                                                                                                                              En Stock
                                                                                                                                                                              €345.64 Price
                                                                                                                                                                              En Stock
                                                                                                                                                                              €345.64 Price
                                                                                                                                                                              Conduit d'eau refroidissement turbo Megane 2 RSConduit d'eau refroidissement turbo Megane 2 RS
                                                                                                                                                                                  Conduite d'eau refroidissement Turbo pour Megane 2 RS
                                                                                                                                                                                  €345.64Price
                                                                                                                                                                                  Conduit d'eau refroidissement turbo Megane 2 RSConduit d'eau refroidissement turbo Megane 2 RS
                                                                                                                                                                                      Conduite d'eau refroidissement Turbo pour Megane 2 RS
                                                                                                                                                                                      €345.64Price
                                                                                                                                                                                      Joint cuivre de banjo d'alimentation de rampe Twingo R1 et R2
                                                                                                                                                                                          Joint cuivre de banjo d'alimentation de rampe Twingo R1 et R2 Référence: 7711050937
                                                                                                                                                                                          €3.04Price
                                                                                                                                                                                          Joint cuivre de banjo d'alimentation de rampe Twingo R1 et R2
                                                                                                                                                                                              Joint cuivre de banjo d'alimentation de rampe Twingo R1 et R2 Référence: 7711050937
                                                                                                                                                                                              €3.04Price
                                                                                                                                                                                              Durite d'induction (admission) Forge Motorsport Megane 4 RSDurite d'induction (admission) Forge Motorsport Megane 4 RS
                                                                                                                                                                                                  Durite d'induction (admission) Forge Motorsport Megane 4 RS Produit de qualité permettant de limiter les perturbations.
                                                                                                                                                                                                  €118.31Price
                                                                                                                                                                                                  Durite d'induction (admission) Forge Motorsport Megane 4 RSDurite d'induction (admission) Forge Motorsport Megane 4 RS
                                                                                                                                                                                                      Durite d'induction (admission) Forge Motorsport Megane 4 RS Produit de qualité permettant de limiter les perturbations.
                                                                                                                                                                                                      €118.31Price
                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                      €402.96 Price
                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                      €402.96 Price
                                                                                                                                                                                                      Convergent boitier filtre assemblé Twingo R2 195cvConvergent boitier filtre assemblé Twingo R2 195cv
                                                                                                                                                                                                          Convergent boitier filtre assemblé Twingo R2 195cv
                                                                                                                                                                                                          €402.96Price
                                                                                                                                                                                                          Convergent boitier filtre assemblé Twingo R2 195cvConvergent boitier filtre assemblé Twingo R2 195cv
                                                                                                                                                                                                              Convergent boitier filtre assemblé Twingo R2 195cv
                                                                                                                                                                                                              €402.96Price
                                                                                                                                                                                                              Interrupteur coup de poing Megane N4
                                                                                                                                                                                                                  Take zero risks on the track or in competition with this genuine Renault Sport emergency kill switch . An essential component of the electrical system for the Renault Megane N4 and Renault Twingo R2 , this emergency cutoff switch immediately cuts off power in the event of an incident to prevent electrical...
                                                                                                                                                                                                                  €20.30Price
                                                                                                                                                                                                                  Interrupteur coup de poing Megane N4
                                                                                                                                                                                                                      Take zero risks on the track or in competition with this genuine Renault Sport emergency kill switch . An essential component of the electrical system for the Renault Megane N4 and Renault Twingo R2 , this emergency cutoff switch immediately cuts off power in the event of an incident to prevent electrical...
                                                                                                                                                                                                                      €20.30Price