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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
Bouchon rampe à essence Twingo R1 et R2
Référence: 7711160200
€7.04Price
Joint de boitier papillon Megane 3 RS
Véritable produit d'origine
€32.14Price
Adaptateur rallonge sonde pression d'huile Twingo R2
Référence: 7711157208
€45.46Price
Cale admission porte injecteur Twingo 2 RS y compris R1 et R2 160cv
Référence: 8200329496
€194.51Price
Prevent oil weeping and critical oil pressure drops within your engine block with the Genuine Factory Resin Glue Red Liquid Gasket Compound . Specially formulated under official manufacturer part numbers 7711237640 , 7701421162 , and...
€33.22Price
ELF Tranself NFX SAE 75W Gearbox Oil – 1 Litre
The ELF Tranself NFX SAE 75W gearbox oil is a synthetic transmission lubricant designed for manual gearboxes requiring...
€18.79Price
Kit joints spy et ecrous poulies arbre à cames Megane 2 RS
Véritable produit d'origine
€49.33Price
Galet tendeur accessoire Megane 3 RS
Véritable produit d'origine
€110.08Price
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
Butée basse pédale d'accélérateur Twingo R2
Référence: 7711157182
€35.68Price
Do not compromise the lubrication of your VR38DETT engine. This genuine Nissan oil filter is the only component certified by the manufacturer to ensure constant oil pressure and optimal filtration of impurities. Essential for every engine oil change , it preserves the longevity of your Nissan GTR R35 , whether for daily...
€24.71Price
Sur commande ou en cours de réappro
€8.24
€20.59
Regular price
-60% off
Price
Sur commande ou en cours de réappro
€8.24
€20.59
Regular price
-60% off
Price
Do not risk a costly engine failure during your next track day. This 16mm diameter core plug is an essential engine safety component for all Renault Sport F4R blocks. Whether for the timing side or the left of the oil filter , this engine block expansion plug ensures a perfect seal and prevents coolant leaks under high...
€8.24€20.59Regular price-60% offPrice
Sur commande ou en cours de réappro
€74.52
Price
Sur commande ou en cours de réappro
€74.52
Price
Do not risk the destruction of your F4R engine ! This Additional Timing Belt Protection Plate is essential for the Renault Clio 3 RS , Mégane 2 RS , and Mégane 3 RS . It offers crucial mechanical safety , protecting the timing belt from...
€74.52Price
Sur commande ou en cours de réappro
€79.00
Price
Sur commande ou en cours de réappro
€79.00
Price
Do not take the risk of a devastating engine failure ! This Additional Timing Belt Protection Plate is the essential element to secure the timing belt of your Renault Clio 2 RS (F4R engine). It provides vital protection against stone chips and debris, including...
€79.00Price
Sur commande ou en cours de réappro
€35.10
Price
Sur commande ou en cours de réappro
€35.10
Price
Preserve the performance of your Renault Clio 2 RS , Renault Clio 3 RS , or Renault Twingo 2 RS with this genuine RENAULT engine oil filler cap . An essential part to maintain the tightness and cleanliness of your engine. Find complementary products for the maintenance of your sports car at the bottom of the page.
€35.10Price
Sur commande ou en cours de réappro
€21.08
Price
Sur commande ou en cours de réappro
€21.08
Price
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
€9.30
Price
Sur commande ou en cours de réappro
€9.30
Price
Bouchon vidange moteur Megane 4 RS - Clio 4 RS -Alpine A110
€9.30Price
Sur commande ou en cours de réappro
€272.90
Price
Sur commande ou en cours de réappro
€272.90
Price
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
€44.21
Price
Sur commande ou en cours de réappro
€44.21
Price
Do not risk irreversible engine failure due to poor lubrication, inaccurate oil level readings, or plastic fragments breaking off inside your oil pan. The genuine metal oil dipstick for the Renault Megane 2 RS and Clio 3 RS is the definitive solution to replace the fragile...
€44.21Price
Tonnelet 60L Motul 300V 15W50
MEILLEURE FIABILITÉ
<a class="acc-header active" href="https://www.motul.com/fr/fr/landings/new-300v#"...
€905.99Price
- 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
€12.60
Price
Sur commande ou en cours de réappro
€12.60
Price
Joint de pompe à eau Clio 3 RS - Megane 2 RS - Megane 3 RS
€12.60Price
Flexible à carburant Réservoir / Té Clio 3 Cup
Référence: 7711162421
€160.52Price
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
€3.73
Price
Sur commande ou en cours de réappro
€3.73
Price
Vis de fixation cache moteur Clio 2 RS (coté bobine)
€3.73Price
Sur commande ou en cours de réappro
€151.46
€252.43
Regular price
-40% off
Price
Sur commande ou en cours de réappro
€151.46
€252.43
Regular price
-40% off
Price
Poulie damper Clio 2 RS Véritable produit d'origine
€151.46€252.43Regular price-40% offPrice