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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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Active filters
Joint de queue de soupape echappement Megane 3 RS et N4
Vendu à l'unité
Véritable produit d'origine
€7.80Price
Jeu de Bougies Renault (fabriqué par NGK) (Vendu par 4) pour Clio 16S
Produit d'origine Renault
€36.05Price
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
Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
€14.95Price
Durite Forge Silicone. Se monte en lieu et place Plusieurs Coloris Disponibles
€140.75Price
Plaque obturatrice de Dump Valve d'origine pour Megane RS
€43.96Price
Joint de queue de soupape
Attention pour Megane 3 RS les joints sont différents entre admission et échappement
Vendu à l'unité
€5.63Price
Dump Valve ouverte Forge Megane 4 RS
Permet de faire le bruit de decharge du turbo fortement apprécié.
€299.00Price
Optimize the performance of your Renault Twingo R2 EVO 195hp with this genuine RENAULT SPORT assembled cylinder head (ref. 7711167644). Supplied with valves, retainers, valve springs, rocker arms, and pushrods, this cylinder head is ready to be installed (camshafts not included). Guaranteed performance and reliability.
€8,104.62Price
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
Collier serrage inox (durite) diametre 20-32mm
Vendu à l'unité
€1.10Price
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
Tuyau Flexible sonde pression Twingo R2
Référence: 7711160963
€98.71Price
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 25-40mm
Vendu à l'unité
€1.30Price
Vis de fixation galet enrouleur de distribution K4M
8200581340
€5.66Price
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
Gicleur Piston 1-3 Clio 2 RS y compris Gr N et X65 Cup
€33.55Price
This new oil pressure sensor , from the Renault Sport competition catalog , is a vital safety part for the rally engines of the Renault Clio R3 and Twingo R2 . It is essential for monitoring lubrication and thereby preventing catastrophic engine failures caused by a lack or drop in oil pressure.
€195.78Price
AAC Echappement loi 278TR2E1 Twingo R2
Référence: 7711167673
€1,326.07Price
Collier serrage inox (durite) diametre 30-45mm
Vendu à l'unité
€1.37Price
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 suppression de direction assistée comprenant la poulie folle et son support.
€199.00Price
Gicleur Piston 2-4 Clio 2 RS y compris Gr N et x65 Cup
€33.55Price
Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
€37.90Price
Conduite d'eau refroidissement Turbo pour Megane 2 RS
€345.64Price
Capteur pression de suralimentation Megane 3 RS
Véritable produit d'origine
€130.37Price
Collier serrage inox (durite) diametre 32-50mm
Vendu à l'unité
€1.36Price
Don't let a heavy and power-consuming air conditioning compressor hold back the performance of your Renault Twingo 2 RS . This genuine Renault accessory bracket is the official solution for a reliable AC delete . Specifically designed for the K4M RS engine , it allows for significant weight reduction and improved engine...
€217.02Price
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
Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
€41.95Price
Capteur pression suralimentation Megane 2 RS
€140.16Price
Collier serrage inox (durite) diametre 50-70mm
Vendu à l'unité
€1.84Price
Linguet rouleau Clio 2 RS et Clio 3 RS y compris R3 et X85 Cup et Twingo RSVéritable produit d'origine
€90.76Price
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
Piston équipé indice B (X=82.70) Clio 3 RS et X85 Cup
Piston d'origine
€133.56Price
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
Collier serrage inox (durite) diametre 60-80mm
Vendu à l'unité
€2.08Price
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
Joint de Culasse Clio 3 RS y compris Clio R3 et X85 Cup
Véritable produit d'origine
€89.65Price