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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
Support connecteur Cablage Megane 3 RS et N4
Référence: 242300002R
€34.04Price
- New
- New
Genuine Renault exhaust gas temperature sensor designed for compatible vehicles including the Renault Megane 4 RS and Alpine A110 .
An ideal replacement for a worn or faulty sensor, helping maintain accurate exhaust temperature monitoring and proper engine...
€118.80Price
Joint d'échangeur (modine) d'huile Clio 3 RS
€14.36Price
Couvercle protection boitier éléctronique Megane 3 RS et N4
€25.51Price
The original Renault water/oil heat exchanger nipple is an essential part to ensure optimal circulation of cooling and oil fluids in your Renault Clio 3 RS . It guarantees a stable engine temperature and optimal performance. We ship worldwide.
€14.68Price
Don't risk restricting the power potential of your 1.8 TCe engine. This genuine Renault spark plug (part number 224015221R ) is the only component certified by the manufacturer to guarantee flawless combustion and prevent destructive high-RPM misfires on your Renault Megane 4 RS , Trophy, or 300. ...
€26.22Price
Don't risk an engine breakdown! This Genuine Renault Camshaft Position Sensor Seal is the essential component for your engine's sealing. Specifically designed for the sporty Renault Clio 3 RS (F4R), Clio 3 X85 Cup and Renault Megane 3 RS (F4RT) , it ensures flawless reliability and accurate engine data reading. ...
€2.95Price
En Stock
€1,258.87
Price
En Stock
€1,258.87
Price
The genuine Renault new bare cylinder head (reference 7701478763 ) is the solution for major engine problems in your Renault Twingo 2 RS or Twingo R1 . Specifically designed for the K4M engine , this new part is the only option for a reliable repair after overheating or a timing belt failure. Don't risk multiple breakdowns by choosing a used or repaired...
€1,258.87Price
Demi coussinet rouge inf ligne arbre Twingo 2 RS
Référence: 8200859991-8200859999-122239522R
€11.53Price
Avoid leaving an electrical fault to immobilise your Renault Mégane 3 RS . This genuine Renault UPC unit (Protection and Switching Unit) , reference 284B69854R , is designed to manage the protection and distribution of several electrical...
€649.37Price
Do you own a Renault Clio 3 RS or a Renault Megane 2 RS and worry about not having a clear and reliable view of your sports engine's oil level? Does the lack of precise information on your dashboard stress you out before every track session or dynamic drive? Don't let doubt linger any longer! This original RENAULT electronic oil level gauge ...
€98.82Price
Do not let invisible wear condemn your K4M engine block. This genuine Renault connecting rod bearing shell ( Yellow mark) is the critical component required to maintain oil pressure and the integrity of your rotating assembly. Specifically designed for the Renault Twingo 2 RS , as well as the Twingo R1 and Twingo R2...
€6.13Price
Cablage bac à batterie Megane N4
Référence: 7711167169
€449.09Price
En Stock
€53.98
€63.50
Regular price
-15% off
Price
En Stock
€53.98
€63.50
Regular price
-15% off
Price
- On sale!
- On sale!
Preserve the raw output, responsiveness, and longevity of your modern turbocharged engine with Castrol EDGE 5L 0w40 RN17RSA motor oil . Explicitly formulated under factory reference 7711943670 to meet the strict engineering approval demands of Renault Sport...
€53.98€63.50Regular price-15% offPrice
Demi coussinet noir ligne arbre Twingo R2
Référence: 8200859982-8200019804
€11.53Price
En Stock
€138.95
Price
En Stock
€138.95
Price
Demi coussinet rouge ligne arbre Twingo R2
Référence: 8200859985-8200859995
€11.53Price
Collection de 24 grains de réglage soupapes admission Twingo R2 195-205
Référence: 7711167707
€485.14Price
- Pack
Jeu de câbles de puissance Twingo R2
Référence: 7711162774
€169.28Price
Guide jauge huile interne Twingo 2 RS y compris R1 et R2
Élément venant de monter dans le carter cylindre
€39.78Price
- Pack
Engine Oil Jet – Renault Megane 3 RS
Engine oil jet designed for compatible Renault Megane 3 RS applications. This component directs engine oil to specific areas of the engine to support lubrication and help manage operating temperatures. Check compatibility with your engine before ordering.
€14.65Price
Epingle retenue butée de ressort de pompe à huile K4M
€1.22Price
Relais cablage
Référence: 8200337666 remplace les ref : 8200587121 et 8200786806 et <span...
€35.54Price
- Pack
- Pack
Pompe à huile assemblée Twingo R2
Référence: 7711162823
€254.69Price
Tuyau dégazage passe cloison / Staubli 2 Twingo R2
€149.06Price
Ressort de clapet de pompe à huile Twingo R2
€3.00Price
Tuyau remplissage passe cloison / Staubli 1 Twingo R2
€148.57Price
Clip maintien
Permet de fixer l'isolant tablier sur Clio 2 RS
Référence: 7703081227
€1.99Price
Tuyau entrée reservoir / passe cloison Twingo R2
€115.33Price
- Pack
Décanteur huile Twingo 2 RS et Wind
Référence: 8200951079
€47.74Price
Cablage liaison répartiteur sortie coupe circuit Megane N4
€25.66Price
Support bague étanchéité Twingo 2 RS et Wind
Référence: 7700105179
€27.42Price
Câble liaison batterie entrée coupe circuit Megane N4
€25.58Price
- Pack
Poussoir contre came rouleau Twingo 2 RS et Wind
Référence: 8200320561
€32.92Price