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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
Sur commande ou en cours de réappro
€73.49
€91.02
Regular price
-€17.53 off
Price
Sur commande ou en cours de réappro
€73.49
€91.02
Regular price
-€17.53 off
Price
Kit courroie d'accessoire (courroie alternateur) Véritable Produit Renault
€73.49€91.02Regular price-€17.53 offPrice
Le MECACYL *.* HJE® a été mis au point comme hyper-lubrifiant complémentaire de têtes moteurs essence pour une protection rapide de soupapes ainsi hyper-lubrifiées, pour les véhicules anciens ou fonctionnant au sans plomb, ou les têtes moteurs de véhicules au gaz, et maintenant pour les bio carburants. Aucun des lubrifiants et additifs classiques ne peut surpasser MECACYL *.* HJE qui se...
€22.94Price
Joint de culasse Megane 3 RS et N4
Référence: 7711167279
€68.23Price
Vilebrequin allégé Clio R3 Maxi Evo Référence: 7711162505
€1,349.06Price
Original Renault Expansion Tank for Clio 3 RS - Optimal Cooling System Maintenance
Preserve the reliability of your Renault Clio 3 RS with this original Renault expansion tank. Ensures the correct coolant level for optimal engine operation. Also find related products at the bottom of this page.
€108.78Price
Kit Dump Valve Forge double piston
Ressort interchangeable non fourni
Circuit ouvert. Ce mode de fonctionnement est reconnaissable au PSSCHHIIIITTT qui se laisse entendre lors du changement de rapport.
La dump est fourni avec un kit de montage.
€165.54Price
Sur commande ou en cours de réappro
€143.58
Price
Sur commande ou en cours de réappro
€143.58
Price
Choose genuine reliability with this Renault accessory kit for your Clio 3 RS . Composed of the pulley and accessory belt , it ensures the proper function of all essential components (water pump, alternator, A/C). Don't risk a belt snapping, which could immobilize your sports car and cause serious engine damage.
€143.58Price
Kit de 8 Durites Silicones pour Clio 16S et Williams Noir mat afin de rester dans l'esprit d'origine de la voiture Parfait pour une restoration
€209.00Price
Sur commande ou en cours de réappro
€192.00
€240.00
Regular price
-20% off
Price
Sur commande ou en cours de réappro
€192.00
€240.00
Regular price
-20% off
Price
A worn or faulty camshaft timing dephaser pulley can affect the operation of the variable valve timing system and lead to unusual engine noises, irregular running or timing-related faults on your Renault Clio 2 RS . This Renault camshaft dephaser...
€192.00€240.00Regular price-20% offPrice
Sur commande ou en cours de réappro
€51.60
Price
Sur commande ou en cours de réappro
€51.60
Price
Do not risk foreign debris entering your engine's timing mechanism, premature wear on your belt due to structural rubbing, or a catastrophic timing belt snap during high-RPM track sessions. The premium timing belt cover casing for the Renault Twingo RS and Twingo R1 is the...
€51.60Price
Sur commande ou en cours de réappro
€250.96
Price
Sur commande ou en cours de réappro
€250.96
Price
Don't let engine overheating sideline your Renault Twingo 2 RS . This engine water radiator , specifically designed for models with air conditioning , is essential for maintaining the reliability of your K4M RS engine. This brand new product meets original equipment specifications for a...
€250.96Price
Sur commande ou en cours de réappro
€73.75
Price
Sur commande ou en cours de réappro
€73.75
Price
Réservoir (vase d'expansion) liquide de refroidissement Clio 16S et Williams
Véritable produit d'origine
€73.75Price
Sur commande ou en cours de réappro
€2.44
Price
Sur commande ou en cours de réappro
€2.44
Price
A crucial detail for your engine's integrity, this genuine Renault piston pin circlip is compatible with a wide range of sports models: Clio 2 RS, 3 RS, Megane 2 RS, 3 RS and their competition versions. Sold individually, this tiny but vital safety part must be replaced with every removal to prevent engine failure .
€2.44Price
Arbre à cames admission retouché Clio R3 Access
7711162394
€311.34Price
Sur commande ou en cours de réappro
€336.02
Price
Sur commande ou en cours de réappro
€336.02
Price
Arbre à cames échappement Clio 3 RS, X85 cup et R3 Access
€336.02Price
Sur commande ou en cours de réappro
€31.48
Price
Sur commande ou en cours de réappro
€31.48
Price
Durite d'eau entrée radiateur de chauffage Twingo RS R1 et R2
Véritable produit d'origine.
€31.48Price
Sur commande ou en cours de réappro
€165.71
Price
Sur commande ou en cours de réappro
€165.71
Price
Attention: This product is no longer available. Are you looking for the original variable valve timing solenoid for your Renault Clio 3 RS? Discover the Phase 2 solenoid and the compatible connector, available below for an alternative solution.
€165.71Price
Sur commande ou en cours de réappro
€3,315.60
Price
Sur commande ou en cours de réappro
€3,315.60
Price
Culasse nue modifiée Clio R3 Maxi Evo 2009 250cv
7711162554
€3,315.60Price
Sur commande ou en cours de réappro
€117.11
Price
Sur commande ou en cours de réappro
€117.11
Price
Capteur Température d'eau Clio 2 RS y compris X65 Cup et Gr N
Référence: 7711155372
€117.11Price
Sur commande ou en cours de réappro
€10.00
Price
Sur commande ou en cours de réappro
€10.00
Price
Raccord coté durite pour radiateur de Chauffage Clio 2 RS
€10.00Price
Sonde température d'eau Megane 2 RS
Véritable produit d'origine
€127.81Price
Durite sortie radiateur Clio 3 RS, Cup et R3
€110.32Price