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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: Préparation intérieure
En Stock
€13.37 Price
En Stock
€13.37 Price
Joint Plenum Clio 2 RS
      Joint Plenum Clio 2 RS. Joint permettant de faire l’étanchéité entre le collecteur d'admission et le plenum Il est conseillé de le changer lors à chaque démontage et donc lors du retaillage de l'ensemble collecteur / plenum
      €13.37Price
      Joint Plenum Clio 2 RS
          Joint Plenum Clio 2 RS. Joint permettant de faire l’étanchéité entre le collecteur d'admission et le plenum Il est conseillé de le changer lors à chaque démontage et donc lors du retaillage de l'ensemble collecteur / plenum
          €13.37Price
          En Stock
          €22.74 Price
          En Stock
          €22.74 Price
          Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
              Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
              €22.74Price
              Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                  Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                  €22.74Price
                  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
                          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
                                  €122.00 Price
                                  En Stock
                                  €122.00 Price
                                  ARP Uprated Rod Bolts | Renault Clio & Megane RS
                                      Protect your bottom end assembly against high-RPM failure with this premium Uprated ARP Rod Bolts Kit for Renault Clio 16S, Williams, Clio 2 3 RS, and Megane 2 3 RS , commercialized under the international part number ARP-216-6301 . Forged from premium ARP...
                                      €122.00Price
                                      ARP Uprated Rod Bolts | Renault Clio & Megane RS
                                          Protect your bottom end assembly against high-RPM failure with this premium Uprated ARP Rod Bolts Kit for Renault Clio 16S, Williams, Clio 2 3 RS, and Megane 2 3 RS , commercialized under the international part number ARP-216-6301 . Forged from premium ARP...
                                          €122.00Price
                                          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
                                                  Joint de queue de soupape echappement Megane 3 RS et N4Joint de queue de soupape echappement Megane 3 RS et N4
                                                      Joint de queue de soupape echappement Megane 3 RS et N4 Vendu à l'unité Véritable produit d'origine
                                                      €7.80Price
                                                      Joint de queue de soupape echappement Megane 3 RS et N4Joint de queue de soupape echappement Megane 3 RS et N4
                                                          Joint de queue de soupape echappement Megane 3 RS et N4 Vendu à l'unité Véritable produit d'origine
                                                          €7.80Price
                                                          En Stock
                                                          €12.50 Price
                                                          En Stock
                                                          €12.50 Price
                                                          Joint Collecteur Admission Clio 3 RS
                                                              Joint Collecteur Admission Clio 3 RS Joint permettant de faire l’étanchéité entre le moteur et le collecteur d'admission. Il est conseillé de le changer lors à chaque démontage
                                                              €12.50Price
                                                              Joint Collecteur Admission Clio 3 RS
                                                                  Joint Collecteur Admission Clio 3 RS Joint permettant de faire l’étanchéité entre le moteur et le collecteur d'admission. Il est conseillé de le changer lors à chaque démontage
                                                                  €12.50Price
                                                                  Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                                                      Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                                                      €14.95Price
                                                                      Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                                                          Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                                                          €14.95Price
                                                                          Durite Admission Clio 2 RSSilicone Air Induction Hose for Renault Clio 2 RS
                                                                              Stop letting a perished or cracked factory hose choke your Clio 2 RS engine. This reinforced silicone induction hose is a direct replacement for the OEM rubber part, which is notorious for collapsing under vacuum. Available in various colors for a subtle or race-inspired customization , it ensures...
                                                                              €69.00Price
                                                                              Durite Admission Clio 2 RSSilicone Air Induction Hose for Renault Clio 2 RS
                                                                                  Stop letting a perished or cracked factory hose choke your Clio 2 RS engine. This reinforced silicone induction hose is a direct replacement for the OEM rubber part, which is notorious for collapsing under vacuum. Available in various colors for a subtle or race-inspired customization , it ensures...
                                                                                  €69.00Price
                                                                                  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
                                                                                          €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
                                                                                                  Poulie accessoire filtrante (damper) Twingo RS, R1 et R2Poulie accessoire filtrante (damper) Twingo RS, R1 et R2
                                                                                                      Poulie accessoire filtrante Twingo RS, R1 et R2 7711167301
                                                                                                      €127.10Price
                                                                                                      Poulie accessoire filtrante (damper) Twingo RS, R1 et R2Poulie accessoire filtrante (damper) Twingo RS, R1 et R2
                                                                                                          Poulie accessoire filtrante Twingo RS, R1 et R2 7711167301
                                                                                                          €127.10Price
                                                                                                          Vis de bielle origine
                                                                                                              Secure your performance engine's bottom end with this genuine RENAULT connecting rod bolt , sold individually. Engineered to withstand high RPMs, it is essential for the maintenance and personalization of Clio 2 RS , Clio 3 RS , Megane 2/3 RS , and Clio Williams ...
                                                                                                              €8.56Price
                                                                                                              Vis de bielle origine
                                                                                                                  Secure your performance engine's bottom end with this genuine RENAULT connecting rod bolt , sold individually. Engineered to withstand high RPMs, it is essential for the maintenance and personalization of Clio 2 RS , Clio 3 RS , Megane 2/3 RS , and Clio Williams ...
                                                                                                                  €8.56Price
                                                                                                                  En Stock
                                                                                                                  €50.73 €72.47 Regular price -30% off Price
                                                                                                                  En Stock
                                                                                                                  €50.73 €72.47 Regular price -30% off Price
                                                                                                                  Calorstat Clio 2 RS - Megane 2 RSGenuine Renault Thermostat - Megane 2 RS, Clio 2 RS & Cup
                                                                                                                      Optimize your engine's thermal regulation with this genuine Renault thermostat . Specifically designed for the Renault Megane 2 RS and Clio 2 RS , this calorstat guarantees rapid warm-up and protection against overheating during intense driving conditions. Certified genuine Renault...
                                                                                                                      €50.73€72.47Regular price-30% offPrice
                                                                                                                      Calorstat Clio 2 RS - Megane 2 RSGenuine Renault Thermostat - Megane 2 RS, Clio 2 RS & Cup
                                                                                                                          Optimize your engine's thermal regulation with this genuine Renault thermostat . Specifically designed for the Renault Megane 2 RS and Clio 2 RS , this calorstat guarantees rapid warm-up and protection against overheating during intense driving conditions. Certified genuine Renault...
                                                                                                                          €50.73€72.47Regular price-30% offPrice
                                                                                                                          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
                                                                                                                                  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
                                                                                                                                          Durite d'admission d'air Forge Motorsport Mégane 3 RSDurite d'admission d'air Forge Motorsport Mégane 3 RS
                                                                                                                                              Durite d'admission d'air silicone Forge Motorsport qui se fixe en sortie de boite à air. Celle ce permet d'augmenter le débit d'air notamment grâce à un diamètre plus gros ainsi qu'une surface lisse interne. Se monte en lieu et place de celle d'origine Plusieurs couleurs disponibles
                                                                                                                                              €159.77Price
                                                                                                                                              Durite d'admission d'air Forge Motorsport Mégane 3 RSDurite d'admission d'air Forge Motorsport Mégane 3 RS
                                                                                                                                                  Durite d'admission d'air silicone Forge Motorsport qui se fixe en sortie de boite à air. Celle ce permet d'augmenter le débit d'air notamment grâce à un diamètre plus gros ainsi qu'une surface lisse interne. Se monte en lieu et place de celle d'origine Plusieurs couleurs disponibles
                                                                                                                                                  €159.77Price
                                                                                                                                                  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
                                                                                                                                                          Flasque palier ( X2.30 )2.3mm Crankshaft Thrust Washer - Renault Clio RS & Megane RS
                                                                                                                                                              Ensure the longevity of your bottom end with this genuine Renault crankshaft thrust washer pair . Featuring a precise thickness of 2.3 mm , these thrust bearings are essential for controlling crankshaft end play on F7R and F4R engines. A certified OEM part for Clio Williams, Clio 2 RS, Clio 3 RS, and...
                                                                                                                                                              €43.51Price
                                                                                                                                                              Flasque palier ( X2.30 )2.3mm Crankshaft Thrust Washer - Renault Clio RS & Megane RS
                                                                                                                                                                  Ensure the longevity of your bottom end with this genuine Renault crankshaft thrust washer pair . Featuring a precise thickness of 2.3 mm , these thrust bearings are essential for controlling crankshaft end play on F7R and F4R engines. A certified OEM part for Clio Williams, Clio 2 RS, Clio 3 RS, and...
                                                                                                                                                                  €43.51Price
                                                                                                                                                                  Carter Huile Clio 3 RS - Megane 3 RS - Megane 2 RSOEM Renault Oil Pan - Clio 3 RS, Megane 2 RS, Megane 3 RS
                                                                                                                                                                      Don't gamble with your engine's lubrication. This genuine Renault OEM oil pan is the only component that guarantees a perfect seal and thermal resistance meeting the strict requirements of your Renault Clio 3 RS , Megane 2 RS , or Megane 3 RS . By choosing this certified part, you avoid micro-cracks and warping issues common in...
                                                                                                                                                                      €265.93Price
                                                                                                                                                                      Carter Huile Clio 3 RS - Megane 3 RS - Megane 2 RSOEM Renault Oil Pan - Clio 3 RS, Megane 2 RS, Megane 3 RS
                                                                                                                                                                          Don't gamble with your engine's lubrication. This genuine Renault OEM oil pan is the only component that guarantees a perfect seal and thermal resistance meeting the strict requirements of your Renault Clio 3 RS , Megane 2 RS , or Megane 3 RS . By choosing this certified part, you avoid micro-cracks and warping issues common in...
                                                                                                                                                                          €265.93Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €133.39 Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €133.39 Price
                                                                                                                                                                          Joint de Culasse Cometic Clio 16S /WilliamsJoint de Culasse Cometic Clio 16S /Williams
                                                                                                                                                                              Joint de culasse Cometic. Haute résistance. Alesage 83 mm , Epaisseur 0.76 Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. Nous contacter pour connaitre les épaisseurs possibles D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                                                                                                              €133.39Price
                                                                                                                                                                              Joint de Culasse Cometic Clio 16S /WilliamsJoint de Culasse Cometic Clio 16S /Williams
                                                                                                                                                                                  Joint de culasse Cometic. Haute résistance. Alesage 83 mm , Epaisseur 0.76 Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. Nous contacter pour connaitre les épaisseurs possibles D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                                                                                                                  €133.39Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €105.52 Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €105.52 Price
                                                                                                                                                                                  Pompe à eau K4M Twingo Rs R1 et R2
                                                                                                                                                                                      Pompe à eau K4M Twingo RS R1 et R2 Référence: 8200582675 Pompe à eau équipé de la poulie métallique, et non de la version en plastique moins fiable.
                                                                                                                                                                                      €105.52Price
                                                                                                                                                                                      Pompe à eau K4M Twingo Rs R1 et R2
                                                                                                                                                                                          Pompe à eau K4M Twingo RS R1 et R2 Référence: 8200582675 Pompe à eau équipé de la poulie métallique, et non de la version en plastique moins fiable.
                                                                                                                                                                                          €105.52Price
                                                                                                                                                                                          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
                                                                                                                                                                                                  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
                                                                                                                                                                                                          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
                                                                                                                                                                                                                  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