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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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Optimize the Performance and Reliability of Your Renault RS or Twingo RS with the Genuine Renault Valve Collet
Manufactured by Renault, this valve collet is specifically designed to meet the precise requirements of Renault RS and Twingo RS engines. It delivers OEM-quality, durability, and performance, making it the ideal choice for drivers seeking reliability and...
€5.53Price
The official Renault Sport set of 7 flywheel bolts (ref. 7711150582 ) is a high-performance fastening kit, essential for competition vehicles such as Renault Twingo R1 , R2 , Clio 2 X65 Cup , Clio R3 , Clio 3 X85 Cup , and Megane N4 . Designed for secure and...
€31.26Price
- Pack
- Pack
Chaîne de pompe à huile Twingo R2 Référence: 8200397125
€15.90Price
Canalisation alimentation carburant Megane 3 RS
€233.51Price
Pompe à essence Sytec Clio 3 RS (Compatible E85)
Montage...
€114.89Price
Ensure optimal fuel supply for your Renault Clio 4 RS with this genuine RENAULT fuel pump gauge module . Essential for reliable engine operation and accurate fuel level indication. Discover the compatible ring and seal kit for secure mounting at the bottom of the page.
€317.52Price
Demi-coussinet sup. ergoté / rainuré Clio R3 MAX (prix unitaire)
La photo représente 5 coussinets mais le prix est unitaire
€79.93Price
Forged Intake Valve – 28337-70856
The forged intake valve 28337-70856 is an engine component designed to control the entry of air, or the air-fuel mixture, into the combustion chamber. It...
€31.04Price
Ensure the perfect sealing and protection of your engine block with this genuine Renault core plug (freeze plug) with a 20.5mm diameter . This authentic part is essential during any engine rebuild to prevent coolant leaks.
Manufacturer reference: 7703075147 .
Precise 20.5mm...
€2.82Price
Soupape échappement Inconel F4R 30mm
Attention +1mm par rapport à l'origine
Head Diam: 30.00mm...
€52.42Price
Pompe à essence Sytec Clio 4 RS (Compatible E85)
Débit max: 390 L/H
Débit: 315 L/H à 3 Bar et 240 L:H à 5 Bar
Pression MAX: 10.5 Bar
€112.82Price
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
Support connecteur Cablage Twingo R2
Référence: 7711162734
€28.07Price
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
Cale admission porte injecteur Twingo R2 195/205
Référence: 7711167613
€693.23Price
En Stock
€81.02
€202.56
Regular price
-60% off
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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
Planche étiquette POWER BOX Twingo R2
Référence: 7711162629
€18.50Price
- 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
Support connecteur Cablage Megane 3 RS et N4
Référence: 242300002R
€34.04Price
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
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
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
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
Cablage bac à batterie Megane N4
Référence: 7711167169
€449.09Price
Demi coussinet noir ligne arbre Twingo R2
Référence: 8200859982-8200019804
€11.53Price
En Stock
€138.95
Price
En Stock
€138.95
Price
