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Collier serrage inox (durite) diametre 32-50mm
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€1.36Price
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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
Tampon supérieur radiateur Clio 3 RS y compris R3 et X85 Cup
€7.96Price
Vis de fixation galet enrouleur de distribution K4M
8200581340
€5.66Price
Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
€41.95Price
Collier serrage inox (durite) diametre 50-70mm
Vendu à l'unité
€1.84Price
Linguet rouleau Clio 2 RS et Clio 3 RS y compris R3 et X85 Cup et Twingo RSVéritable produit d'origine
€90.76Price
Do not risk major engine failure on your sports car. This genuine RENAULT expansion tank is the only certified part capable of maintaining the exact pressure of your cooling circuit. Specially designed for the Renault Clio 2 RS (all phases, including Jean Ragnotti, Clio RS1, RS2, 172, and 182), this coolant reservoir replaces your porous, yellowed, or...
€116.83Price
Gicleur Piston 1-3 Clio 2 RS y compris Gr N et X65 Cup
€33.55Price
Conduite d'eau refroidissement Turbo pour Megane 2 RS
€345.64Price
Piston équipé indice B (X=82.70) Clio 3 RS et X85 Cup
Piston d'origine
€133.56Price
Collier serrage inox (durite) diametre 60-80mm
Vendu à l'unité
€2.08Price
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
Secure your engine block seal and guarantee the total reliability of your cooling circuit with these factory-spec Water Pump Fixing Bolts for the Renault Clio 2 RS, X65 Cup, and Group N . Engineered specifically for the naturally aspirated 2.0L 16V F4R engine, this high-grade...
€2.82Price
Kit colliers pour kit durites d'eau Forge Clio 2 RS
€31.01Price
Gicleur Piston 2-4 Clio 2 RS y compris Gr N et x65 Cup
€33.55Price
Durite d'eau sortie de radiateur Twingo RS R1 et R2
Véritable produit d'origine
€82.45Price
Original RENAULT Piston Ring Set for Twingo 2 RS (for 1 piston)
Do not compromise the compression and power of your Twingo 2 RS engine. This original RENAULT piston...
€68.32Price
Collier serrage inox (durite) diametre 8-12mm
Vendu à l'unité
€1.00Price
Optimize the performance of your Renault Twingo R2 EVO 195hp with this genuine RENAULT SPORT assembled cylinder head (ref. 7711167644). Supplied with valves, retainers, valve springs, rocker arms, and pushrods, this cylinder head is ready to be installed (camshafts not included). Guaranteed performance and reliability.
€8,104.62Price
Tuyau entrée d'eau Twingo RS y compris R1 et R2
€43.48Price
Ensure optimal thermal regulation for your Renault Megane 3 RS with this genuine Renault thermostat . With an opening temperature of 83°C , it is the key part to ensure your engine runs at the ideal temperature, preventing both overheating and undercooling. Don't compromise the health of your F4R engine.
€82.24Price
- New
- New
Genuine Renault mounting bolt sold individually, specifically designed to secure the timing side engine mount to the chassis. Essential to ensure perfect alignment of the engine block and prevent severe vibrations or hardware failure on your Renault Clio 2 RS or Clio 2 Group N race car.
€10.72Price
Sur commande ou en cours de réappro
€14.51
Price
Sur commande ou en cours de réappro
€14.51
Price
Sur commande ou en cours de réappro
€42.50
Price
Sur commande ou en cours de réappro
€42.50
Price
Sur commande ou en cours de réappro
€248.35
Price
Sur commande ou en cours de réappro
€248.35
Price
Protect your engine's integrity with this genuine RENAULT timing-side engine mount (hydro-elastic damper). Specifically engineered for the Renault Clio 4 RS , this essential component ensures optimal vibration dampening and rigorous stability for your 1.6 Turbo block. Don't let a sagging mount compromise your...
€248.35Price
Sur commande ou en cours de réappro
€21.31
Price
Sur commande ou en cours de réappro
€21.31
Price
Silent Bloc Renforcement anti cabrage inférieur Powerflex Twingo 2 RS
Uniquement compatible avec l'anti cabrage d'origine en version Acier
Le silent bloc renforce l'origine mais ne le remplace pas. Si le silent bloc d'origine est mort, la mise en place du renfort ne le sauvera pas.
Si vous disposez de l'anti cabrage d'origine en Aluminium, veuillez consulter nos autres...
€21.31Price
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
€73.14
Price
Sur commande ou en cours de réappro
€73.14
Price
Biellette Superieure Anti Cabrage Sup Megane 2 RS DCI
Biellette Anti couple
€73.14Price
Sur commande ou en cours de réappro
€132.58
Price
Sur commande ou en cours de réappro
€132.58
Price
Sur commande ou en cours de réappro
€63.72
Price
Sur commande ou en cours de réappro
€63.72
Price
Stop letting excessive engine movement ruin your gear changes. The Powerflex Black Series Rear Central Anti-Squat Bush (reference PFF60-211K-BLK ) is the definitive solution to lock down your powertrain. Designed specifically for the Clio 2 RS, Clio 3 RS, and Twingo 2 RS , this reinforced mount eliminates...
€63.72Price
Sur commande ou en cours de réappro
€55.14
Price
Sur commande ou en cours de réappro
€55.14
Price
Don't risk sloppy gear shifts or damaged engine mounts under hard acceleration. The Powerflex Black Series rear lower engine mount insert kit (Reference: PFF60206K-BLK) locks down drivetrain movement on your Renault Clio 16S, Clio Williams, or Clio 2...
€55.14Price