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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
Gicleur Piston 2-4 Clio 2 RS y compris Gr N et x65 Cup
€33.55Price
Axe 8-13 pompe à huile et pompe à eau
Référence: 7703035053
€1.33Price
Don’t let your engine breathe hot air and lose precious horsepower. This genuine Renault Sport air filter screen (reference 7711155407 ) is the core component of the induction system for the Renault Clio 2 X65 Cup . Designed to isolate the cold air flow, it ensures optimal oxygen density for consistent performance under racing conditions.
€91.08Price
Joint cuivre Ø14x20 ép:1mm Twingo R2
Référence: 7711050940
€3.98Price
Durite d'induction (admission) Forge Motorsport Megane 4 RS
Produit de qualité permettant de limiter les perturbations.
€118.31Price
Jeu de segments pour piston origine Megane 3 RS
1 Jeu comprend le necessaire pour 1 piston
€116.83Price
Joint de queue de soupape
Attention pour Megane 3 RS les joints sont différents entre admission et échappement
Vendu à l'unité
€5.63Price
Joint de Culasse Clio 3 RS y compris Clio R3 et X85 Cup
Véritable produit d'origine
€89.65Price
Tuyau Flexible sonde pression Twingo R2
Référence: 7711160963
€98.71Price
This new oil pressure sensor , from the Renault Sport competition catalog , is a vital safety part for the rally engines of the Renault Clio R3 and Twingo R2 . It is essential for monitoring lubrication and thereby preventing catastrophic engine failures caused by a lack or drop in oil pressure.
€195.78Price
Vis de fixation galet enrouleur de distribution K4M
8200581340
€5.66Price
Admission ITG MAXOGEN pour CLIO 4 RS
N'hesitez pas à la completer avec un BOA afin de la gaver en air frais
€329.00Price
Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
€37.90Price
Vis de bielles ARP pour bielles PEC Wossner
€113.17Price
Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
€41.95Price
Filtre à air Origine Megane 3 RS
Véritable produit d'origine
€26.83Price
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
Piston équipé indice B (X=82.70) Clio 3 RS et X85 Cup
Piston d'origine
€133.56Price
Don't let a restrictive stock paper filter choke your hot hatch's turbo boost. The washable cotton Green Filter replacement air filter for Renault Megane 4 RS frees up intake airflow to your 1.8 Turbo TCe engine while delivering flawless filtration...
€67.08Price
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
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
€132.58
Price
Sur commande ou en cours de réappro
€132.58
Price
Sur commande ou en cours de réappro
€53.36
Price
Sur commande ou en cours de réappro
€53.36
Price
Don't compromise on the performance and reliability of your Renault Megane 3 RS ! Our Inconel exhaust valve , designed as a direct replacement for the original, is crucial for preserving your engine's integrity under extreme stress. An essential investment for the durability and power of your sports vehicle.
€53.36Price
Sur commande ou en cours de réappro
€3.49
Price
Sur commande ou en cours de réappro
€3.49
Price
Bouchon obturateur cylindre coté embrayage Clio 2 RS
€3.49Price
Sur commande ou en cours de réappro
€79.54
Price
Sur commande ou en cours de réappro
€79.54
Price
Couvercle boitier sortie d'eau (calorstat) Clio 2 RS
€79.54Price
Sur commande ou en cours de réappro
€89.75
Price
Sur commande ou en cours de réappro
€89.75
Price
Don't let a degraded component restrict your sports car's performance. This genuine Renault upstream air filter duct is the essential manufacturer part required to restore optimal intake airflow to your Renault Megane 4 RS .
Subjected to thermal variations under the hood and high-RPM vibrations, a porous or cracked intake...
€89.75Price
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
Filtre de remplacement Pipercross Pour Renault Twingo 2 RS
Il Remplace avantageusement votre filtre de serie.
Les filtres Pipercross sont nettoyables et donc réutilisables.
€52.00Price