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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: Circuit d'air
  • Categories: Circuit d'eau
  • Categories: Kit Allègement
  • Categories: Suralimentation (Turbo)
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
          €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
                  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
                          €279.71 Price
                          En Stock
                          €279.71 Price
                          Kit 11 Durites Silicone Super 5 GT TURBO Ph 2Kit 11 Durites Silicone Super 5 GT TURBO Ph 2
                              Kit de 11 Durites Silicones pour Super 5 GT Turbo Phase 2 Noir mat afin de rester dans l'esprit d'origine de la voiture Parfait pour une restoration
                              €279.71Price
                              Kit 11 Durites Silicone Super 5 GT TURBO Ph 2Kit 11 Durites Silicone Super 5 GT TURBO Ph 2
                                  Kit de 11 Durites Silicones pour Super 5 GT Turbo Phase 2 Noir mat afin de rester dans l'esprit d'origine de la voiture Parfait pour une restoration
                                  €279.71Price
                                  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
                                          €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
                                                  High-tensile steel replacement tuning preload spring for Forge Motorsport dump valves.
                                                      Prevent boost pressure leaks and excessive throttle response lag on your turbocharged engine block. This premium Forge Dump Valve Preload Spring features an uprated mechanical rating designed specifically to maintain the internal piston seal of your bypass valve under high...
                                                      €10.93Price
                                                      High-tensile steel replacement tuning preload spring for Forge Motorsport dump valves.
                                                          Prevent boost pressure leaks and excessive throttle response lag on your turbocharged engine block. This premium Forge Dump Valve Preload Spring features an uprated mechanical rating designed specifically to maintain the internal piston seal of your bypass valve under high...
                                                          €10.93Price
                                                          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
                                                                  En Stock
                                                                  €689.93 Price
                                                                  En Stock
                                                                  €689.93 Price
                                                                  Durite inférieure radiateur Clio 2 Rs et Cup
                                                                      Durite inférieure radiateur Clio 2 Cup Référence: 7711155360
                                                                      €689.93Price
                                                                      Durite inférieure radiateur Clio 2 Rs et Cup
                                                                          Durite inférieure radiateur Clio 2 Cup Référence: 7711155360
                                                                          €689.93Price
                                                                          Durite Forge Induction Megane 2 RSDurite Forge Induction Megane 2 RS
                                                                              Durite Forge Silicone. Se monte en lieu et place Plusieurs Coloris Disponibles
                                                                              €140.75Price
                                                                              Durite Forge Induction Megane 2 RSDurite Forge Induction Megane 2 RS
                                                                                  Durite Forge Silicone. Se monte en lieu et place Plusieurs Coloris Disponibles
                                                                                  €140.75Price
                                                                                  En Stock
                                                                                  €790.00 Price
                                                                                  En Stock
                                                                                  €790.00 Price
                                                                                  Echangeur Wagner Megane 3 RSEchangeur Wagner Megane 3 RS
                                                                                      Wagner Tuning Intercooler for Renault Mégane 3 RS: Boost your sports car's performance with this high-performance intercooler. Designed to efficiently cool the turbocharged air, it enhances your engine's power, torque, and reliability, while also giving your vehicle a sportier look.
                                                                                      €790.00Price
                                                                                      Echangeur Wagner Megane 3 RSEchangeur Wagner Megane 3 RS
                                                                                          Wagner Tuning Intercooler for Renault Mégane 3 RS: Boost your sports car's performance with this high-performance intercooler. Designed to efficiently cool the turbocharged air, it enhances your engine's power, torque, and reliability, while also giving your vehicle a sportier look.
                                                                                          €790.00Price
                                                                                          Dispo selon configuration
                                                                                          €169.00 €209.02 Regular price -€40.02 off Price
                                                                                          Dispo selon configuration
                                                                                          €169.00 €209.02 Regular price -€40.02 off Price
                                                                                          COLD SIDE Clio 4 RS (conduit d'air renforcé)Uprated Cold Side Boost Pipe Kit - Renault Clio 4 RS
                                                                                            • Pack
                                                                                            Protect your turbocharging system against pressure drops with the high-performance Cold Side Kit for the Renault Clio 4 RS (Uprated Air Guide Pipe) . This reinforced intake hose replaces the fragile factory plastic pipe that is prone to cracking, optimizing cold airflow...
                                                                                            €169.00€209.02Regular price-€40.02 offPrice
                                                                                            COLD SIDE Clio 4 RS (conduit d'air renforcé)Uprated Cold Side Boost Pipe Kit - Renault Clio 4 RS
                                                                                              • Pack
                                                                                              Protect your turbocharging system against pressure drops with the high-performance Cold Side Kit for the Renault Clio 4 RS (Uprated Air Guide Pipe) . This reinforced intake hose replaces the fragile factory plastic pipe that is prone to cracking, optimizing cold airflow...
                                                                                              €169.00€209.02Regular price-€40.02 offPrice
                                                                                              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
                                                                                                      En Stock
                                                                                                      €10.57 €13.93 Regular price -€3.36 off Price
                                                                                                      En Stock
                                                                                                      €10.57 €13.93 Regular price -€3.36 off Price
                                                                                                      Joint Collecteur Admission Clio 2 RS
                                                                                                          Ensure vital engine sealing with this genuine Renault intake manifold gasket for the Clio 2 RS (172 and 182hp). This authentic component guarantees a perfect junction between the cylinder head and your manifold, preventing any parasitic air leaks that could degrade the performance of your F4R engine . Do not...
                                                                                                          €10.57€13.93Regular price-€3.36 offPrice
                                                                                                          Joint Collecteur Admission Clio 2 RS
                                                                                                              Ensure vital engine sealing with this genuine Renault intake manifold gasket for the Clio 2 RS (172 and 182hp). This authentic component guarantees a perfect junction between the cylinder head and your manifold, preventing any parasitic air leaks that could degrade the performance of your F4R engine . Do not...
                                                                                                              €10.57€13.93Regular price-€3.36 offPrice
                                                                                                              En Stock
                                                                                                              €13.20 Price
                                                                                                              En Stock
                                                                                                              €13.20 Price
                                                                                                              Joint Plenum Clio 3 RSJoint Plenum Clio 3 RS
                                                                                                                  Joint Plenum 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
                                                                                                                  €13.20Price
                                                                                                                  Joint Plenum Clio 3 RSJoint Plenum Clio 3 RS
                                                                                                                      Joint Plenum 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
                                                                                                                      €13.20Price
                                                                                                                      Durite Silicone liaison conduit air turbo Megane 2 RS pour tubulure FORGEDurite Silicone liaison conduit air turbo Megane 2 RS pour tubulure FORGE
                                                                                                                          Durite Silicone liaison conduit air turbo Megane 2 RS Durite visible sur le dessus du moteur
                                                                                                                          €14.22Price
                                                                                                                          Durite Silicone liaison conduit air turbo Megane 2 RS pour tubulure FORGEDurite Silicone liaison conduit air turbo Megane 2 RS pour tubulure FORGE
                                                                                                                              Durite Silicone liaison conduit air turbo Megane 2 RS Durite visible sur le dessus du moteur
                                                                                                                              €14.22Price
                                                                                                                              En Stock
                                                                                                                              €82.24 Price
                                                                                                                              En Stock
                                                                                                                              €82.24 Price
                                                                                                                              Calorstat Megane 3 RS
                                                                                                                                  Ensure optimal thermal regulation for your Renault Megane 3 RS with this genuine Renault thermostat . With an opening temperature of 83°C , it is the key part to ensure your engine runs at the ideal temperature, preventing both overheating and undercooling. Don't compromise the health of your F4R engine.
                                                                                                                                  €82.24Price
                                                                                                                                  Calorstat Megane 3 RS
                                                                                                                                      Ensure optimal thermal regulation for your Renault Megane 3 RS with this genuine Renault thermostat . With an opening temperature of 83°C , it is the key part to ensure your engine runs at the ideal temperature, preventing both overheating and undercooling. Don't compromise the health of your F4R engine.
                                                                                                                                      €82.24Price
                                                                                                                                      En Stock
                                                                                                                                      €40.84 Price
                                                                                                                                      En Stock
                                                                                                                                      €40.84 Price
                                                                                                                                      Capteur température d'air Twingo RS, R1 et R2
                                                                                                                                          Capteur température d'air Twingo RS, R1 et R2 Référence: 7711162828
                                                                                                                                          €40.84Price
                                                                                                                                          Capteur température d'air Twingo RS, R1 et R2
                                                                                                                                              Capteur température d'air Twingo RS, R1 et R2 Référence: 7711162828
                                                                                                                                              €40.84Price
                                                                                                                                              Genuine AC Delete Accessory Bracket - Renault Twingo 2 RSGenuine AC Delete Accessory Bracket - Renault Twingo 2 RS
                                                                                                                                                  Don't let a heavy and power-consuming air conditioning compressor hold back the performance of your Renault Twingo 2 RS . This genuine Renault accessory bracket is the official solution for a reliable AC delete . Specifically designed for the K4M RS engine , it allows for significant weight reduction and improved engine...
                                                                                                                                                  €217.02Price
                                                                                                                                                  Genuine AC Delete Accessory Bracket - Renault Twingo 2 RSGenuine AC Delete Accessory Bracket - Renault Twingo 2 RS
                                                                                                                                                      Don't let a heavy and power-consuming air conditioning compressor hold back the performance of your Renault Twingo 2 RS . This genuine Renault accessory bracket is the official solution for a reliable AC delete . Specifically designed for the K4M RS engine , it allows for significant weight reduction and improved engine...
                                                                                                                                                      €217.02Price
                                                                                                                                                      En Stock
                                                                                                                                                      €266.00 Price
                                                                                                                                                      En Stock
                                                                                                                                                      €266.00 Price
                                                                                                                                                      Wasegate Forge Clio 4 RS
                                                                                                                                                          Optimize your boost management with the Forge Motorsport Wastegate for Renault Clio 4 RS (reference FMACRTRCT ). This piston-actuated turbo actuator is designed to provide significantly higher pressure stability than the factory unit. Essential for...
                                                                                                                                                          €266.00Price
                                                                                                                                                          Wasegate Forge Clio 4 RS
                                                                                                                                                              Optimize your boost management with the Forge Motorsport Wastegate for Renault Clio 4 RS (reference FMACRTRCT ). This piston-actuated turbo actuator is designed to provide significantly higher pressure stability than the factory unit. Essential for...
                                                                                                                                                              €266.00Price
                                                                                                                                                              En Stock
                                                                                                                                                              €1.00 Price
                                                                                                                                                              En Stock
                                                                                                                                                              €1.00 Price
                                                                                                                                                              Collier serrage inox (durite) diametre 12-20mm
                                                                                                                                                                  Collier serrage inox (durite) diametre 12-20mm Vendu à l'unité
                                                                                                                                                                  €1.00Price
                                                                                                                                                                  Collier serrage inox (durite) diametre 12-20mm
                                                                                                                                                                      Collier serrage inox (durite) diametre 12-20mm Vendu à l'unité
                                                                                                                                                                      €1.00Price
                                                                                                                                                                      Dump Valve ouverte Forge Megane 4 RSDump Valve ouverte Forge Megane 4 RS
                                                                                                                                                                          Dump Valve ouverte Forge Megane 4 RS Permet de faire le bruit de decharge du turbo fortement apprécié.
                                                                                                                                                                          €299.00Price
                                                                                                                                                                          Dump Valve ouverte Forge Megane 4 RSDump Valve ouverte Forge Megane 4 RS
                                                                                                                                                                              Dump Valve ouverte Forge Megane 4 RS Permet de faire le bruit de decharge du turbo fortement apprécié.
                                                                                                                                                                              €299.00Price
                                                                                                                                                                              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
                                                                                                                                                                                      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
                                                                                                                                                                                              Vis de pompe à eau Clio 2 RS y compris X65Cup et Gr N
                                                                                                                                                                                                  Secure your engine block seal and guarantee the total reliability of your cooling circuit with these factory-spec Water Pump Fixing Bolts for the Renault Clio 2 RS, X65 Cup, and Group N . Engineered specifically for the naturally aspirated 2.0L 16V F4R engine, this high-grade...
                                                                                                                                                                                                  €2.82Price
                                                                                                                                                                                                  Vis de pompe à eau Clio 2 RS y compris X65Cup et Gr N
                                                                                                                                                                                                      Secure your engine block seal and guarantee the total reliability of your cooling circuit with these factory-spec Water Pump Fixing Bolts for the Renault Clio 2 RS, X65 Cup, and Group N . Engineered specifically for the naturally aspirated 2.0L 16V F4R engine, this high-grade...
                                                                                                                                                                                                      €2.82Price
                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                      €27.47 Price
                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                      €27.47 Price
                                                                                                                                                                                                      Joint de turbo sur collecteur Megane 2 RS Megane 3 RS
                                                                                                                                                                                                          Optimize your F4RT engine's sealing with this genuine RENAULT turbocharger to manifold gasket . Specifically designed for the Renault Megane 2 RS and Megane 3 RS , it is the essential component to maintain nominal boost pressure. Do not risk an exhaust leak that would degrade your performance and the...
                                                                                                                                                                                                          €27.47Price
                                                                                                                                                                                                          Joint de turbo sur collecteur Megane 2 RS Megane 3 RS
                                                                                                                                                                                                              Optimize your F4RT engine's sealing with this genuine RENAULT turbocharger to manifold gasket . Specifically designed for the Renault Megane 2 RS and Megane 3 RS , it is the essential component to maintain nominal boost pressure. Do not risk an exhaust leak that would degrade your performance and the...
                                                                                                                                                                                                              €27.47Price