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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: Allumage
  • Categories: Préparation intérieure
  • Categories: Suralimentation (Turbo)
En Stock
€36.05 Price
En Stock
€36.05 Price
Jeu de Bougies Renault Clio 16S
      Jeu de Bougies Renault (fabriqué par NGK) (Vendu par 4) pour Clio 16S Produit d'origine Renault
      €36.05Price
      Jeu de Bougies Renault Clio 16S
          Jeu de Bougies Renault (fabriqué par NGK) (Vendu par 4) pour Clio 16S Produit d'origine Renault
          €36.05Price
          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
                  €56.11 Price
                  En Stock
                  €56.11 Price
                  Électrovanne pilotée Megane 2 RSTurbo Boost Solenoid Valve Mégane 2 RS
                      Turbo Boost Control Solenoid Valve – Renault Mégane 2 RS The turbo boost control solenoid valve, reference 8200702990 , is an engine management component designed to regulate the turbocharger...
                      €56.11Price
                      Électrovanne pilotée Megane 2 RSTurbo Boost Solenoid Valve Mégane 2 RS
                          Turbo Boost Control Solenoid Valve – Renault Mégane 2 RS The turbo boost control solenoid valve, reference 8200702990 , is an engine management component designed to regulate the turbocharger...
                          €56.11Price
                          Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                              Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                              €33.94Price
                              Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                                  Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                                  €33.94Price
                                  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
                                          Fuel Pump Locking Ring and Seal Kit - Renault Sport Range
                                              Ensure a leak-free fuel system with this genuine Renault fuel pump locking ring and seal kit . Essential for any intervention on the fuel sender unit, this kit prevents leaks and persistent fuel odors inside your sports vehicle's cabin. Includes the locking nut (ring) and the...
                                              €55.88Price
                                              Fuel Pump Locking Ring and Seal Kit - Renault Sport Range
                                                  Ensure a leak-free fuel system with this genuine Renault fuel pump locking ring and seal kit . Essential for any intervention on the fuel sender unit, this kit prevents leaks and persistent fuel odors inside your sports vehicle's cabin. Includes the locking nut (ring) and the...
                                                  €55.88Price
                                                  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
                                                          Jeu de Bougies NGK PFR7ZTG
                                                              Maximize your engine's combustion cycle with this set of NGK PFR7ZTG Spark Plugs . Specifically engineered for the high-performance demands of Renault Sport engines, including the Clio 3 RS and Megane 2 RS , these plugs...
                                                              €53.99Price
                                                              Jeu de Bougies NGK PFR7ZTG
                                                                  Maximize your engine's combustion cycle with this set of NGK PFR7ZTG Spark Plugs . Specifically engineered for the high-performance demands of Renault Sport engines, including the Clio 3 RS and Megane 2 RS , these plugs...
                                                                  €53.99Price
                                                                  Fixations Forge Capteur Sur RadiateurFORGE MOTORSPORT FMRCLMP Sensor Securing Kit - Megane 2 RS
                                                                      Secure the sensors of your Megane 2 RS with the FORGE MOTORSPORT FMRCLMP kit. Composed of 2 reinforcements, it ensures optimal support for the depression hose and pressure sensor. Avoid performance losses and reliability issues.
                                                                      €36.80Price
                                                                      Fixations Forge Capteur Sur RadiateurFORGE MOTORSPORT FMRCLMP Sensor Securing Kit - Megane 2 RS
                                                                          Secure the sensors of your Megane 2 RS with the FORGE MOTORSPORT FMRCLMP kit. Composed of 2 reinforcements, it ensures optimal support for the depression hose and pressure sensor. Avoid performance losses and reliability issues.
                                                                          €36.80Price
                                                                          En Stock
                                                                          €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
                                                                                          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
                                                                                                  €224.35 Price
                                                                                                  En Stock
                                                                                                  €224.35 Price
                                                                                                  Kit Joint Refection moteur Origine Clio 2 RS
                                                                                                      Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
                                                                                                      €224.35Price
                                                                                                      Kit Joint Refection moteur Origine Clio 2 RS
                                                                                                          Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
                                                                                                          €224.35Price
                                                                                                          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
                                                                                                                  €50.21 €83.68 Regular price -40% off Price
                                                                                                                  En Stock
                                                                                                                  €50.21 €83.68 Regular price -40% off Price
                                                                                                                  Bobine D'allumage
                                                                                                                      Optimize your engine's combustion cycle with this genuine Renault ignition coil . Sold individually, it is the essential choice for Renault Megane 2 RS , Clio 3 RS , Megane 3 RS , and Twingo 2 RS owners looking to maintain optimal ignition performance. Certified...
                                                                                                                      €50.21€83.68Regular price-40% offPrice
                                                                                                                      Bobine D'allumage
                                                                                                                          Optimize your engine's combustion cycle with this genuine Renault ignition coil . Sold individually, it is the essential choice for Renault Megane 2 RS , Clio 3 RS , Megane 3 RS , and Twingo 2 RS owners looking to maintain optimal ignition performance. Certified...
                                                                                                                          €50.21€83.68Regular price-40% offPrice
                                                                                                                          En Stock
                                                                                                                          €174.00 Price
                                                                                                                          En Stock
                                                                                                                          €174.00 Price
                                                                                                                          Joint de Culasse renforcé Cometic Megane 3 RS 1.9Joint de Culasse renforcé Cometic Megane 3 RS 1.9
                                                                                                                              Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.9 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 1.9Joint de Culasse renforcé Cometic Megane 3 RS 1.9
                                                                                                                                  Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.9 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
                                                                                                                                  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
                                                                                                                                                  €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
                                                                                                                                                          €66.48 Price
                                                                                                                                                          En Stock
                                                                                                                                                          €66.48 Price
                                                                                                                                                          Coussinets de Vilebrequin Trimetal ergotés ACLCoussinets de Vilebrequin Trimetal ergotés ACL
                                                                                                                                                              Coussinet de vilebrequin trimetal Coussinets pour F7P, F7R, F4R, F4R soit pour Clio 16S, Williams, clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS Présence d'ergots.
                                                                                                                                                              €66.48Price
                                                                                                                                                              Coussinets de Vilebrequin Trimetal ergotés ACLCoussinets de Vilebrequin Trimetal ergotés ACL
                                                                                                                                                                  Coussinet de vilebrequin trimetal Coussinets pour F7P, F7R, F4R, F4R soit pour Clio 16S, Williams, clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS Présence d'ergots.
                                                                                                                                                                  €66.48Price
                                                                                                                                                                  Collection de Ségments (X82.70)
                                                                                                                                                                      Ensure a perfect engine seal with this genuine Renault piston ring set . Specifically designed for the F4R and F4Rt engines found in the Clio 2 RS , Clio 3 RS , and Megane 3 RS , this kit is the crucial element for restoring...
                                                                                                                                                                      €37.55Price
                                                                                                                                                                      Collection de Ségments (X82.70)
                                                                                                                                                                          Ensure a perfect engine seal with this genuine Renault piston ring set . Specifically designed for the F4R and F4Rt engines found in the Clio 2 RS , Clio 3 RS , and Megane 3 RS , this kit is the crucial element for restoring...
                                                                                                                                                                          €37.55Price
                                                                                                                                                                          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
                                                                                                                                                                                  €80.84 €115.49 Regular price -30% off Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €80.84 €115.49 Regular price -30% off Price
                                                                                                                                                                                  Jeu de Bougies Origine Megane 3 RS et N4
                                                                                                                                                                                      Do not let poor combustion stifle the potential of your F4RT engine. This set of 4 genuine Renault spark plugs is specifically calibrated to meet the extreme thermal demands of the Renault Megane 3 RS (250, 265, and 275 hp). By choosing these manufacturer-certified plugs, you avoid misfires under full load and protect your cylinders from the risks of...
                                                                                                                                                                                      €80.84€115.49Regular price-30% offPrice
                                                                                                                                                                                      Jeu de Bougies Origine Megane 3 RS et N4
                                                                                                                                                                                          Do not let poor combustion stifle the potential of your F4RT engine. This set of 4 genuine Renault spark plugs is specifically calibrated to meet the extreme thermal demands of the Renault Megane 3 RS (250, 265, and 275 hp). By choosing these manufacturer-certified plugs, you avoid misfires under full load and protect your cylinders from the risks of...
                                                                                                                                                                                          €80.84€115.49Regular price-30% offPrice
                                                                                                                                                                                          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
                                                                                                                                                                                              Bague étanchéité arbre à cames Twingo R2Twingo RS (R1/R2) Exhaust Camshaft Oil Seal - Original
                                                                                                                                                                                                  The original Renault exhaust camshaft oil seal is an essential sealing part for your Renault Twingo RS, Twingo R1 , or Twingo R2 . It ensures a tight seal between the camshaft, cylinder head, and valve cover, preserving your engine's performance and reliability.
                                                                                                                                                                                                  €16.92Price
                                                                                                                                                                                                  Bague étanchéité arbre à cames Twingo R2Twingo RS (R1/R2) Exhaust Camshaft Oil Seal - Original
                                                                                                                                                                                                      The original Renault exhaust camshaft oil seal is an essential sealing part for your Renault Twingo RS, Twingo R1 , or Twingo R2 . It ensures a tight seal between the camshaft, cylinder head, and valve cover, preserving your engine's performance and reliability.
                                                                                                                                                                                                      €16.92Price
                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                      €50.86 Price
                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                      €50.86 Price
                                                                                                                                                                                                      Manchon pipe de remplissage réservoir Twingo 2 RS
                                                                                                                                                                                                          Manchon pipe de remplissage réservoir Twingo 2 RS
                                                                                                                                                                                                          €50.86Price
                                                                                                                                                                                                          Manchon pipe de remplissage réservoir Twingo 2 RS
                                                                                                                                                                                                              Manchon pipe de remplissage réservoir Twingo 2 RS
                                                                                                                                                                                                              €50.86Price