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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
Câblage additionnel commande Dash Megane N4
Référence: 7711167213
€431.94Price
Banjo alimentation rampe essence Twingo R1 et R2 et Clio R3
Référence: 7711160198
€57.72Price
Tuyau carburant entre réservoir et coupling Goodridge Megane N4
Référence: 7711167089
€173.57Price
Capteur température d'air Twingo RS, R1 et R2
Référence: 7711162828
€40.84Price
Collier serrage inox (durite) diametre 60-80mm
Vendu à l'unité
€2.08Price
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
Plot Caoutchouc cache supérieur moteur
Véritable produit d'origine pour Megane 2 RS et Megane 3 RS
€9.89Price
Prise de bobine Clio 2
Vendue avec les cosses et les joints d'étanchéité
€35.34Price
Vis Banjo alimentation rampe Twingo R1 et R2
Référence: 7711129199
€25.69Price
Joint de sonde de temperature d'eau Clio 2 RS y compris Gr N et X65 Cup
€2.47Price
Optimize the management of your anti-lag system with the Genuine Renault Sport Steering Wheel ALS Wiring Harness (Part Number 7711167187) . Specifically engineered for the rally-spec Megane N4 , this motorsport-grade electrical loom ensures a shielded,...
€211.24Price
Do not risk a fuel system failure mid-session. The Goodridge Tee to fuel rail hose is crucial for the reliability of your Clio 3 x85 Cup . Keeping a worn or inadequate hose directly exposes your engine to critical fuel starvation or severe leak risks. Permanently secure your injection system with this high-precision...
€69.56Price
Collier serrage inox (durite) diametre 8-12mm
Vendu à l'unité
€1.00Price
Bouchon de vidange carter d'huile moteur
Produit compatible pour Clio 2 RS, Clio 3 RS, Megane 2 RS et Megane 3 RS
€4.37Price
Capteur pédale accélérateur Clio 3 RS
Attention 2 types de connecteurs existent, merci de controler la compatibilité avec votre véhicule
Véritable produit d'origine
€119.28Price
Tuyau carburant entre coupling Goodridge et rampe Megane N4
Référence: 7711167090
€146.16Price
Raccord union double égal Ø8 Megane N4
Référence : 7711167252
€6.41Price
Joint Plenum Clio 2 RS. Joint permettant de faire l’étanchéité entre le collecteur d'admission et le plenum Il est conseillé de le changer lors à chaque démontage et donc lors du retaillage de l'ensemble collecteur / plenum
€13.37Price
Convergent boitier filtre assemblé Twingo R2 195cv
€402.96Price
Kit accessoire Clio 4 RS
Véritable produit d'origine
€132.37€161.42Regular price-18% offPrice
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
€210.52
Price
Sur commande ou en cours de réappro
€210.52
Price
Do not risk driving blind on the track, losing vital telemetry logs, or missing out on analyzing your timed lap performances. The genuine Simple Data Acquisition Harness from Renault Sport (Official References: 7711160897 and 7711160709) allows you to cleanly connect your...
€210.52Price
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
