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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'eau
  • Categories: Préparation intérieure
  • Categories: Suralimentation (Turbo)
Durite modine/radiateur Clio 2 Cup
      The Renault Sport water hose (ref. 7711154249 ) is an essential part to ensure optimal coolant circulation between the water/oil heat exchanger and the radiator of your Renault Clio 2 X65 Cup . It guarantees a stable engine temperature and optimal performance.
      €77.62Price
      Durite modine/radiateur Clio 2 Cup
          The Renault Sport water hose (ref. 7711154249 ) is an essential part to ensure optimal coolant circulation between the water/oil heat exchanger and the radiator of your Renault Clio 2 X65 Cup . It guarantees a stable engine temperature and optimal performance.
          €77.62Price
          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
                  €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
                          En Stock
                          €23.50 Price
                          En Stock
                          €23.50 Price
                          Kit Revision Dump Valve Recirculation Forge
                              Kit revision pour Dump Valve Forge comprenant: - 1 sachet de graisse - un piston - joints toriques 
                              €23.50Price
                              Kit Revision Dump Valve Recirculation Forge
                                  Kit revision pour Dump Valve Forge comprenant: - 1 sachet de graisse - un piston - joints toriques 
                                  €23.50Price
                                  En Stock
                                  €133.31 Price
                                  En Stock
                                  €133.31 Price
                                  Joint de Culasse renforcé CometicJoint de Culasse renforcé Cometic
                                      Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 0.75mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                      €133.31Price
                                      Joint de Culasse renforcé CometicJoint de Culasse renforcé Cometic
                                          Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 0.75mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                          €133.31Price
                                          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
                                                  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
                                                          Durites de Reniflard et Wasegate Megane 2 RS
                                                              Durites De reniflard Renforcées pour toutes Megane 2 RS. Produit de la marque Samco Sport Le kit est composé de 4 pièces.
                                                              €82.00Price
                                                              Durites de Reniflard et Wasegate Megane 2 RS
                                                                  Durites De reniflard Renforcées pour toutes Megane 2 RS. Produit de la marque Samco Sport Le kit est composé de 4 pièces.
                                                                  €82.00Price
                                                                  Genuine RENAULT Oil Drain Plug - All Clio/Mégane RS Models
                                                                      Protect your engine against critical leaks! Replace your genuine oil drain plug with this RENAULT reference, essential for all Clio RS , Mégane RS models and competition derivatives (Gr N, R3, X85 Cup). A quality screw guarantees the seal of the oil pan (sump), preventing a ...
                                                                      €4.72Price
                                                                      Genuine RENAULT Oil Drain Plug - All Clio/Mégane RS Models
                                                                          Protect your engine against critical leaks! Replace your genuine oil drain plug with this RENAULT reference, essential for all Clio RS , Mégane RS models and competition derivatives (Gr N, R3, X85 Cup). A quality screw guarantees the seal of the oil pan (sump), preventing a ...
                                                                          €4.72Price
                                                                          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
                                                                                  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
                                                                                          Calorstat Clio 3 RS 75°
                                                                                              Control your engine's temperature with this genuine Renault thermostat with an opening temperature of 75°C . Specifically designed for the Clio 3 RS , it also mounts without modification on the Clio 2 RS , allowing the cooling circuit to open more quickly. This part is essential for limiting temperature spikes and preventing the risk of engine overheating ...
                                                                                              €78.18Price
                                                                                              Calorstat Clio 3 RS 75°
                                                                                                  Control your engine's temperature with this genuine Renault thermostat with an opening temperature of 75°C . Specifically designed for the Clio 3 RS , it also mounts without modification on the Clio 2 RS , allowing the cooling circuit to open more quickly. This part is essential for limiting temperature spikes and preventing the risk of engine overheating ...
                                                                                                  €78.18Price
                                                                                                  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
                                                                                                      €174.00 Price
                                                                                                      En Stock
                                                                                                      €174.00 Price
                                                                                                      Joint de Culasse renforcé Cometic Megane 3 RS 1.7Joint de Culasse renforcé Cometic Megane 3 RS 1.7
                                                                                                          Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.7 mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                                          €174.00Price
                                                                                                          Joint de Culasse renforcé Cometic Megane 3 RS 1.7Joint de Culasse renforcé Cometic Megane 3 RS 1.7
                                                                                                              Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.7 mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                                              €174.00Price
                                                                                                              Collection de 48 grains de réglage soupapes Twingo R2 195-205
                                                                                                                  Collection de 48 grains de réglage soupapes Twingo R2 195-205 7711167645
                                                                                                                  €831.29Price
                                                                                                                  Collection de 48 grains de réglage soupapes Twingo R2 195-205
                                                                                                                      Collection de 48 grains de réglage soupapes Twingo R2 195-205 7711167645
                                                                                                                      €831.29Price
                                                                                                                      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
                                                                                                                              Kit durites de turbo Forge Motorsport Megane 4 RSForge Motorsport Turbo Hose Kit - Renault Megane 4 RS
                                                                                                                                  Secure your boost pressure consistency and eliminate intake charge drops with the high-performance Forge Motorsport Turbo Hose Kit for the Renault Megane 4 RS . This premium set of uprated silicone boost couplers replaces the restrictive factory rubber lines to optimize...
                                                                                                                                  €294.76Price
                                                                                                                                  Kit durites de turbo Forge Motorsport Megane 4 RSForge Motorsport Turbo Hose Kit - Renault Megane 4 RS
                                                                                                                                      Secure your boost pressure consistency and eliminate intake charge drops with the high-performance Forge Motorsport Turbo Hose Kit for the Renault Megane 4 RS . This premium set of uprated silicone boost couplers replaces the restrictive factory rubber lines to optimize...
                                                                                                                                      €294.76Price
                                                                                                                                      Collection de 3 segments pour piston Twingo RS R1 et R2 160
                                                                                                                                          Original RENAULT Piston Ring Set for Twingo 2 RS (for 1 piston) Do not compromise the compression and power of your Twingo 2 RS engine. This original RENAULT piston...
                                                                                                                                          €68.32Price
                                                                                                                                          Collection de 3 segments pour piston Twingo RS R1 et R2 160
                                                                                                                                              Original RENAULT Piston Ring Set for Twingo 2 RS (for 1 piston) Do not compromise the compression and power of your Twingo 2 RS engine. This original RENAULT piston...
                                                                                                                                              €68.32Price
                                                                                                                                              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
                                                                                                                                                      €130.37 Price
                                                                                                                                                      En Stock
                                                                                                                                                      €130.37 Price
                                                                                                                                                      Capteur pression de suralimentation Megane 3 RS
                                                                                                                                                          Capteur pression de suralimentation Megane 3 RS Véritable produit d'origine
                                                                                                                                                          €130.37Price
                                                                                                                                                          Capteur pression de suralimentation Megane 3 RS
                                                                                                                                                              Capteur pression de suralimentation Megane 3 RS Véritable produit d'origine
                                                                                                                                                              €130.37Price
                                                                                                                                                              En Stock
                                                                                                                                                              €98.33 Price
                                                                                                                                                              En Stock
                                                                                                                                                              €98.33 Price
                                                                                                                                                              Reinforced aluminum piston dump valve by Forge Motorsport for Megane 4 GT 205, SKU: FMSPRN12.Forge Piston Dump Valve | Renault Megane 4 GT 205
                                                                                                                                                                  Prevent boost pressure leaks and safeguard your turbocharger's mechanical integrity with the Forge Dump Valve Megane 4 GT 205 . Engineered to replace the fragile factory rubber diaphragm valve, this premium billet aluminum piston-driven version guarantees a perfect air-tight...
                                                                                                                                                                  €98.33Price
                                                                                                                                                                  Reinforced aluminum piston dump valve by Forge Motorsport for Megane 4 GT 205, SKU: FMSPRN12.Forge Piston Dump Valve | Renault Megane 4 GT 205
                                                                                                                                                                      Prevent boost pressure leaks and safeguard your turbocharger's mechanical integrity with the Forge Dump Valve Megane 4 GT 205 . Engineered to replace the fragile factory rubber diaphragm valve, this premium billet aluminum piston-driven version guarantees a perfect air-tight...
                                                                                                                                                                      €98.33Price
                                                                                                                                                                      Durite coudée suralimentation (arrivée turbo) Megane 3 RS
                                                                                                                                                                          Durite coudée suralimentation (arrivée turbo) Megane 3 RS
                                                                                                                                                                          €45.90Price
                                                                                                                                                                          Durite coudée suralimentation (arrivée turbo) Megane 3 RS
                                                                                                                                                                              Durite coudée suralimentation (arrivée turbo) Megane 3 RS
                                                                                                                                                                              €45.90Price
                                                                                                                                                                              Durite Sortie radiateur de chauffage Twingo RS R1 et R2
                                                                                                                                                                                  Durite Sortie radiateur de chauffage Twingo RS R1 et R2 Véritable produit d'origine
                                                                                                                                                                                  €38.53Price
                                                                                                                                                                                  Durite Sortie radiateur de chauffage Twingo RS R1 et R2
                                                                                                                                                                                      Durite Sortie radiateur de chauffage Twingo RS R1 et R2 Véritable produit d'origine
                                                                                                                                                                                      €38.53Price
                                                                                                                                                                                      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
                                                                                                                                                                                              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