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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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Joint cuivre de banjo d'alimentation de rampe Twingo R1 et R2
Référence: 7711050937
€3.04Price
The Renault complete piston (index C) is an original part, supplied with pin and pin clips, designed for your Renault Clio 3 RS and Renault Clio 3 X85 Cup . It ensures optimal engine performance and increased reliability.
€139.14Price
Tuyau 200-06 lg:300 connection rampe Tatuus
Réference: 7711155525
€55.68Price
Preserve your engine's integrity with this genuine Renault oil filter . Specifically engineered for the high-performance engines found in the Renault Clio 4 RS (1.6 Turbo), Renault Megane 4 RS , and Alpine A110 (1.8 Turbo), this filter guarantees optimal removal of impurities.
...
€11.34Price
Gicleur Piston 1-3 Clio 2 RS1 et RS2
Vendu à l'unité
€14.16Price
Joint de sonde de temperature d'eau Clio 2 RS y compris Gr N et X65 Cup
€2.47Price
Bouchon rampe à essence Twingo R1 et R2
Référence: 7711160200
€7.04Price
Galet tendeur accessoire Megane 3 RS
Véritable produit d'origine
€110.08Price
Genuine Renault Bulkhead Insulator for Clio 2 RS and Clio 2 Gr N. Reduce noise and protect your engine compartment with this high-quality insulator.
Don't forget the necessary clips and fasteners for optimal installation (available at the bottom of the page).
€202.12Price
Câblage additionnel commande Dash Megane N4
Référence: 7711167213
€431.94Price
Axe 8-13 pompe à huile et pompe à eau
Référence: 7703035053
€1.33Price
Camshaft Exhaust End Sealing Plug – Renault
The Renault camshaft sealing plug, reference 7700274026 , is an engine component designed to seal an opening in the cylinder head. It helps maintain...
€10.03Price
Vis de fixation galet enrouleur de distribution K4M
8200581340
€5.66Price
Adaptateur rallonge sonde pression d'huile Twingo R2
Référence: 7711157208
€45.46Price
Banjo alimentation rampe essence Twingo R1 et R2 et Clio R3
Référence: 7711160198
€57.72Price
Prise de bobine Clio 2
Vendue avec les cosses et les joints d'étanchéité
€35.34Price
Joint cuivre Ø14x20 ép:1mm Twingo R2
Référence: 7711050940
€3.98Price
Joint de boitier papillon Megane 3 RS
Véritable produit d'origine
€32.14Price
Kit suppression de direction assistée comprenant la poulie folle et son support.
€199.00Price
The original Renault fuel gauge/pump module is an essential part to ensure a reliable and precise fuel supply on your Renault Clio 3 RS , Renault Clio R3 , and Renault Clio 3 X85 Cup . It guarantees accurate fuel level measurement and constant pressure, indispensable for optimal performance. We ship worldwide.
€265.70Price
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
Vis Banjo alimentation rampe Twingo R1 et R2
Référence: 7711129199
€25.69Price
Gicleur Piston 1-3 Clio 2 RS y compris Gr N et X65 Cup
€33.55Price
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
€28.99
Price
Sur commande ou en cours de réappro
€28.99
Price
Do not risk a devastating thermal meltdown or valve breakage in your top end during track days or rally stages. This genuine MPI forged exhaust valve , sold individually and designed for a direct plug-and-play replacement, protects your Renault Clio Williams cylinder head from extreme combustion temperatures. Unlike factory-cast valves that oxidize and weaken...
€28.99Price
Do not risk a catastrophic engine failure on your F7R block during high-RPM driving. This genuine MPI forged intake valve , sold individually and designed for a direct drop-in replacement, is the essential safety component to protect the top end of your Renault Clio Williams . Unlike factory-cast valves that eventually fatigue under extreme thermal stress and...
€28.99Price
Do not risk a drastic loss of compression or excessive oil consumption during your next stage. This official Renault Sport piston ring set (designed for one piston) is the only genuine solution calibrated to maintain absolute sealing in your Clio R3 MAX engine. ...
€324.60Price
Do not risk a drop in compression or a major engine failure mid-stage. This official Renault Sport piston , supplied complete with its pin, is the only genuine component calibrated to restore the original performance of your Clio R3 MAX .
Specifically...
€678.06Price
Sur commande ou en cours de réappro
€10.70
Price
Sur commande ou en cours de réappro
€10.70
Price
Sur commande ou en cours de réappro
€4.93
Price
Sur commande ou en cours de réappro
€4.93
Price
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