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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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Dump Valve ouverte Forge Megane 4 RS
Permet de faire le bruit de decharge du turbo fortement apprécié.
€299.00Price
Collier serrage inox (durite) diametre 50-70mm
Vendu à l'unité
€1.84Price
Tampon inférieur radiateur Clio 3 RS y compris R3 et X85 Cup
€7.19Price
Conduit air HP entrée boitier Clio 4 RS
Permet de remplacer le produit qui s'ouvre de temps en temps sous la pression du Turbo
Produit d'origine
€220.69Price
Do not risk major engine failure on your sports car. This genuine RENAULT expansion tank is the only certified part capable of maintaining the exact pressure of your cooling circuit. Specially designed for the Renault Clio 2 RS (all phases, including Jean Ragnotti, Clio RS1, RS2, 172, and 182), this coolant reservoir replaces your porous, yellowed, or...
€116.83Price
Optimize your F4RT engine's sealing with this genuine RENAULT turbocharger to manifold gasket . Specifically designed for the Renault Megane 2 RS and Megane 3 RS , it is the essential component to maintain nominal boost pressure. Do not risk an exhaust leak that would degrade your performance and the...
€27.47Price
Collier serrage inox (durite) diametre 60-80mm
Vendu à l'unité
€2.08Price
Tampon supérieur radiateur Clio 3 RS y compris R3 et X85 Cup
€7.96Price
Kit colliers pour kit durites d'eau Forge Clio 2 RS
€31.01Price
Optimize the ignition of your 1.6 Turbo engine with the NGK Iridium spark plug for Clio 4 RS . Specifically designed for high-performance engines, it offers superior ignitability and exceptional thermal resistance.
Sold individually, this premium spark...
€26.77Price
En Stock
€127.86
Price
En Stock
€127.86
Price
Stop losing your turbo boost! The GFB DV+ Dump Valve (Diverter Valve) is the essential upgrade for the reliability and responsiveness of your Renault Sport 1.6T and 1.8T engine (Clio 4 RS, Megane 4 GT, Megane 4 RS, Alpine A110). Retain the factory electronics...
€127.86Price
Collier serrage inox (durite) diametre 8-12mm
Vendu à l'unité
€1.00Price
Filtre à air origine Clio 2 RS
Véritable produit d'origine
Ne convient pas à la boite a air cylindrique des clio RS1
€25.61Price
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
Collecteur admission Clio 2 X65 Cup et Gr N
Prévu pour papillon mécanique
€486.55Price
Durite d'eau sortie de radiateur Twingo RS R1 et R2
Véritable produit d'origine
€82.45Price
Tuyau entrée d'eau Twingo RS y compris R1 et R2
€43.48Price
Durite coudée suralimentation (arrivée turbo) Megane 3 RS
€45.90Price
Durite d'induction (admission) Forge Motorsport Megane 4 RS
Produit de qualité permettant de limiter les perturbations.
€118.31Price
Collier serrage inox (durite) diametre 12-20mm
Vendu à l'unité
€1.00Price
Joint de tuyau d'entree d'eau.
Produit compatible pour Clio 2 RS, Twingo RS
€12.40Price
Conduite d'eau refroidissement Turbo pour Megane 2 RS
€345.64Price
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
Capteur pression de suralimentation Megane 3 RS
Véritable produit d'origine
€130.37Price
Durite Sortie radiateur de chauffage Twingo RS R1 et R2
Véritable produit d'origine
€38.53Price
Optimize your engine's cooling with this high-performance water radiator designed for demanding powerplants. Whether you own a standard Clio 3 RS or a competition version like the Clio R3 or Twingo R2 , this component is...
€243.60Price
The Renault ignition coil seal (gasket) is an original part designed to ensure perfect sealing and optimal performance of the ignition system on Renault Twingo 2 RS, Renault Clio 3 RS, Renault Clio R3, Renault Clio 3 X85 Cup, Renault Megane 2 RS, Renault Megane 3 RS, and Renault Megane N4 models.
€15.49Price
Capteur pression suralimentation Megane 2 RS
€140.16Price
Collier serrage inox (durite) diametre 20-32mm
Vendu à l'unité
€1.10Price
Pompe à eau avec joint Clio 4 RS
Véritable produit d'origine
€282.25Price
Ensure absolute air tightness within your forced induction system with the Genuine Renault Turbo Outlet Air Duct Gasket . Specifically calibrated to withstand the high pressures of turbocharged engines, this official O-ring eliminates boost leaks between the turbocharger and...
€15.34Price
Collier serrage inox (durite) diametre 25-40mm
Vendu à l'unité
€1.30Price
Ensure optimal thermal regulation for your Renault Megane 3 RS with this genuine Renault thermostat . With an opening temperature of 83°C , it is the key part to ensure your engine runs at the ideal temperature, preventing both overheating and undercooling. Don't compromise the health of your F4R engine.
€82.24Price
Lot de 2 bouchons silicone pour suppression résonateur Clio 4 RS
Uniquement compatible avec la cold side AIRTEC
Si vous disposez encore de la durite d'origine, consultez nos autres bouchons
€58.32Price
Capteur température d'air Twingo RS, R1 et R2
Référence: 7711162828
€40.84Price
Collier serrage inox (durite) diametre 30-45mm
Vendu à l'unité
€1.37Price
The genuine RENAULT Spark Plug , sold individually and an original manufacturer part, is essential for maintaining optimal performance in your Renault Megane 4 RS or Alpine A110 . Ensure perfect ignition and efficient combustion by choosing RENAULT quality.
€34.73€53.42Regular price-35% offPrice