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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
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
Tampon inférieur radiateur Clio 3 RS y compris R3 et X85 Cup
€7.19Price
Tuyau carburant entre coupling Goodridge et rampe Megane N4
Référence: 7711167090
€146.16Price
Don't let a seized cable compromise your responsiveness on the track. This official Renault Sport throttle cable is specifically designed for the Renault Clio 3 X85 Cup .
Genuine manufacturer part (Reference 7711160160).
High-resistance design for intensive competition ...
€52.69Price
Joint de tuyau d'entree d'eau.
Produit compatible pour Clio 2 RS, Twingo RS
€12.40Price
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
The original Renault fuel gauge/pump module is an essential part to ensure a reliable and precise fuel supply on your Renault Clio 3 RS , Renault Clio R3 , and Renault Clio 3 X85 Cup . It guarantees accurate fuel level measurement and constant pressure, indispensable for optimal performance. We ship worldwide.
€265.70Price
Tampon supérieur radiateur Clio 3 RS y compris R3 et X85 Cup
€7.96Price
Durite d'induction (admission) Forge Motorsport Megane 4 RS
Produit de qualité permettant de limiter les perturbations.
€118.31Price
Collier serrage inox (durite) diametre 20-32mm
Vendu à l'unité
€1.10Price
Dump Valve ouverte Forge Megane 4 RS
Permet de faire le bruit de decharge du turbo fortement apprécié.
€299.00Price
Cale admission porte injecteur Twingo 2 RS y compris R1 et R2 160cv
Référence: 8200329496
€194.51Price
Sur commande ou en cours de réappro
€407.03
Price
Sur commande ou en cours de réappro
€407.03
Price
Ensure an instantaneous start for your Renault Clio 4 RS (all phases) with this brand-new genuine Renault starter motor . Unlike remanufactured units, this 100% new product guarantees maximum reliability and increased longevity for your 1.6 Turbo engine. Don't risk an immobilizing breakdown—choose manufacturer...
€407.03Price
Sur commande ou en cours de réappro
€77.12
Price
Sur commande ou en cours de réappro
€77.12
Price
Do not let a minor electrical failure lead to a major breakdown. This genuine Renault power distribution box is a critical component of your Renault Megane 3 RS starting circuit. Integrating essential high-power fuses , specifically for the starter motor and alternator protection, it ensures secure energy management from your...
€77.12Price
Jauge pompe Clio 2 RS 1
Modele spécifique ayant le régulateur sur la pompe
€188.74Price
Sur commande ou en cours de réappro
€272.90
Price
Sur commande ou en cours de réappro
€272.90
Price
- 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
Do not sacrifice safety for performance. The Forge Motorsport Adaptive Cruise Control (ACC) bracket is the essential solution for Audi RS3 models equipped with the Forge FMINT4 intercooler.
Perfect Compatibility : Developed exclusively for the FMINT4 intercooler. ...
€41.93Price
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
Sur commande ou en cours de réappro
€24.00
Price
Sur commande ou en cours de réappro
€24.00
Price
Tuyau nitrile GOODRIDGE DASH 6 (le m)
Le...
€24.00Price
Sur commande ou en cours de réappro
€1,390.00
Price
Sur commande ou en cours de réappro
€1,390.00
Price
Kit échangeur Wagner Tuning Toyota Yaris GR avec tubulure
L'intercooler hautes performances WAGNERTUNING dispose d'un nouveau type de filet de compétition (tube fin) aux dimensions <br style="color:#06142e;font-family:'Open Sans', Helvetica, Arial,...
€1,390.00Price
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
Flexible à carburant Réservoir / Té Clio 3 Cup
Référence: 7711162421
€160.52Price
Sur commande ou en cours de réappro
€2,930.00
Price
Sur commande ou en cours de réappro
€2,930.00
Price
Preserve the full power output of your twin-turbocharged engine with the Wagner Intercooler Kit for Porsche 991 Turbo and Turbo S . This high-performance cooling system features a significantly larger core volume compared to stock to drastically lower intake air temperatures...
€2,930.00Price
Sur commande ou en cours de réappro
€8.17
Price
Sur commande ou en cours de réappro
€8.17
Price
Conduit air sortie vanne régulation Clio 4 RS
€43.46Price
Durite Silicone liaison conduit air turbo Megane 2 RS Durite visible sur le dessus du moteur.
Non compatible avec les tubulures Forge
€17.40Price