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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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Soupape échappement Inconel F4R 30mm
Attention +1mm par rapport à l'origine
Head Diam: 30.00mm...
€52.42Price
Optimize the installation of your lubrication system with the genuine Renault oil jet installation tool. Designed for F4R engines in Renault Clio 2 & 3 RS and Megane 2 & 3 RS, this tool ensures a perfect fit and optimal precision, guaranteeing reliable and durable engine performance.
€137.94Price
The original Renault intake valve is an essential part to optimize airflow in the engine of your Renault Twingo 2 RS . It guarantees optimal engine performance and efficient combustion. We ship worldwide.
€17.83Price
En Stock
€81.02
€202.56
Regular price
-60% off
Price
En Stock
€81.02
€202.56
Regular price
-60% off
Price
Do not risk power loss and unstable idling on your Clio 2 RS . The Genuine Renault VVT Solenoid (Part Number 8200831629 ) is essential for the proper functioning of your 2.0L 16V F4R engine .
This genuine part guarantees the precise management of variable valve timing ,...
€81.02€202.56Regular price-60% offPrice
Support Alternateur et pompe de DA 7700273712
Produit destiné à la Clio 2 Cup Rally equipé de 1.6 16v
Ne convient pas au F4R
€164.00Price
Demi-cône de soupape admission EVO 2013 Twingo R2
Référence: 7711167705
€3.55Price
- 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
En Stock
€421.38
Price
En Stock
€421.38
Price
Ensure optimal engine cooling for your Renault Clio 3 RS or Twingo RS with this genuine Renault cooling fan motor + blade assembly (GMV) . A key component of thermal management, it's essential for preventing overheating and maintaining your sports car's performance. Don't compromise your engine's health with a failing cooling system.
€421.38Price
Is your engine struggling to reach its operating temperature? The genuine Renault water housing valve is the essential technical solution for Renault Megane 4 RS and Megane 4 GT TCE 205 owners. This authentic part corrects the frequent symptom of a vehicle that no longer warms up , protecting your engine from premature wear...
€576.16Price
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
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
Demi coussinet rouge inf ligne arbre Twingo 2 RS
Référence: 8200859991-8200859999-122239522R
€11.53Price
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
Demi coussinet noir ligne arbre Twingo R2
Référence: 8200859982-8200019804
€11.53Price
Demi coussinet rouge ligne arbre Twingo R2
Référence: 8200859985-8200859995
€11.53Price
En Stock
€138.95
Price
En Stock
€138.95
Price
Collection de 24 grains de réglage soupapes admission Twingo R2 195-205
Référence: 7711167707
€485.14Price
- Pack
Guide jauge huile interne Twingo 2 RS y compris R1 et R2
Élément venant de monter dans le carter cylindre
€39.78Price
- Pack
Radiateur d'eau latéral Wagner BMW M3 / M4 F80/F82/F83
Le moteur turbo S55B30 de 3,0 litres des modèles BMW M3/M4 est équipé d'un circuit de refroidissement par air à suralimentation indirecte....
€1,250.00Price
Epingle retenue butée de ressort de pompe à huile K4M
€1.22Price
Agrafe double tuyau d'eau vers radiateur intérieur Twingo 2
Référence: 7703079857
€2.83Price
- Pack
- Pack
Pompe à huile assemblée Twingo R2
Référence: 7711162823
€254.69Price
Patte fixation support durites d'eau Megane 3 RS et N4
€6.37Price
Tuyau entrée radiateur de chauffage Megane 3 RS et N4
Référence: 924000017R
€30.60Price
Ressort de clapet de pompe à huile Twingo R2
€3.00Price
Support inférieur radiateur Megane 3 RS et N4
Référence: 215450002R
€4.10Price
- Pack
Coude réduit 90° sortie de bocal de refroidissement Twingo R2
€27.98Price
Vis HRDL 5x16 fixation GMV sur radiateur Clio 2 RS et Gr N
€0.83Price
Décanteur huile Twingo 2 RS et Wind
Référence: 8200951079
€47.74Price