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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
Durite Sortie radiateur de chauffage Twingo RS R1 et R2
Véritable produit d'origine
€38.53Price
Pompe à eau avec joint Clio 4 RS
Véritable produit d'origine
€282.25Price
Collier serrage inox (durite) diametre 20-32mm
Vendu à l'unité
€1.10Price
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
Conduite d'eau refroidissement Turbo pour Megane 2 RS
€345.64Price
Collier serrage inox (durite) diametre 25-40mm
Vendu à l'unité
€1.30Price
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
Secure your engine block seal and guarantee the total reliability of your cooling circuit with these factory-spec Water Pump Fixing Bolts for the Renault Clio 2 RS, X65 Cup, and Group N . Engineered specifically for the naturally aspirated 2.0L 16V F4R engine, this high-grade...
€2.82Price
Jeu de Bougies Renault Clio Williams
Véritable produit d'origine
€24.00€30.00Regular price-20% offPrice
Collier serrage inox (durite) diametre 32-50mm
Vendu à l'unité
€1.36Price
Tampon inférieur radiateur Clio 3 RS y compris R3 et X85 Cup
€7.19Price
Collier serrage inox (durite) diametre 50-70mm
Vendu à l'unité
€1.84Price
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
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
Tampon supérieur radiateur Clio 3 RS y compris R3 et X85 Cup
€7.96Price
Collier serrage inox (durite) diametre 60-80mm
Vendu à l'unité
€2.08Price
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
Kit colliers pour kit durites d'eau Forge Clio 2 RS
€31.01Price
Collier serrage inox (durite) diametre 8-12mm
Vendu à l'unité
€1.00Price
- New
Sur commande ou en cours de réappro
€14.20
Price
Sur commande ou en cours de réappro
€14.20
Price
Do not risk catastrophic engine failure due to a coolant leak. This genuine Renault water pump gasket (certified OEM part) is the only component calibrated to guarantee absolute sealing of your high-performance engine's thermal circuit.
Specifically engineered for the demanding engines of the Renault Megane 4 RS ,...
€14.20Price
Sur commande ou en cours de réappro
€309.00
Price
Sur commande ou en cours de réappro
€309.00
Price
Complete Silicone Coolant Hose Kit – Renault Mégane 2 RS
Complete silicone coolant hose kit designed for compatible Renault Mégane 2 RS models. The kit is intended to replace the corresponding hoses in the engine cooling system. Check the engine version and cooling system configuration before ordering.
€309.00Price
Capteur température d'eau Clio 4 RS
Capteur se positionnant sur le boitier de sortie d'eau de la culasse
€117.79Price
- New
- New
Don't risk damaging your sports car engine or suffering from increased fuel consumption. The genuine RENAULT front upstream oxygen lambda sensor for Clio 4 RS guarantees absolute air/fuel mixture accuracy, preserving optimal performance and the 1.6 Turbo engine of your vehicle.
Genuine RENAULT OEM part :...
€265.07Price
Sur commande ou en cours de réappro
€8.17
Price
Sur commande ou en cours de réappro
€8.17
Price
Buse de diffusion 0.5mm Clio 4 X98 Cup et R3T
Référence: 8201489621
€13.57Price
Porte filtre 200μ Clio 4 X98 R3T et Cup
Référence: 8201489625
€12.71Price
Sur commande ou en cours de réappro
€24.89
Price
Sur commande ou en cours de réappro
€24.89
Price
Tuyau entrée dégazage Clio 3 RS y compris R3 et X85 Cup
€24.89Price
Boost the reliability of your ignition system on your Renault Clio 2 RS 172 or 182 hp with this Magnecor reinforced ignition cable set . Designed for the most demanding environments, these cables ensure optimal high-voltage transmission to your spark plugs, eliminating power losses and misfires. Don't let a tired original wire set compromise your F4R engine's performance.
€180.04Price
Jeu de 4 Fils de Bougies Magnecor pour Renault 5 Turbo 1 et Turbo 2
Remplace avantageusement le faisceau d'allumage d'origine.
Cable haute résistance grâce à une épaisseur de silicone les entourant plus importante.
Idéal pour les véhicules mixant les utilisations route et piste.
3 gammes selon la couleur:
Gamme bleue: 8 mm
Gamme Rouge: 8.5 mm
€110.93Price
Capteur Température d'eau Twingo R1 et R2
Référence: 7711162900
€39.94Price
