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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
€151.27
€252.12
Regular price
-40% off
Price
Sur commande ou en cours de réappro
€151.27
€252.12
Regular price
-40% off
Price
Preserve the performance of your Megane 2 RS or Clio 3 RS with this original Renault timing belt kit. Including the belt, idler pulley, and tensioner pulley, this kit is essential for thorough maintenance. Don't risk costly engine failure. Also discover on this page the complete timing belt kit with accessory belt , camshaft plugs , and the...
€151.27€252.12Regular price-40% offPrice
Cone Admission de marque BMC spécifique à la Mégane 3 RS
€126.35Price
Kit Comprenant une bombe de 75ml de nettoyant et une bombre de 75ml de graissant pour Filtre Pipercross
€20.71Price
Sur commande ou en cours de réappro
€39.71
€52.94
Regular price
-25% off
Price
Sur commande ou en cours de réappro
€39.71
€52.94
Regular price
-25% off
Price
Ensure flawless engine sealing with this genuine Renault oil pan gasket . Specifically designed for the high-performance engines of the Renault Clio 2 RS , Clio 3 RS , and Megane 2/3 RS , it prevents oil seepage and maintains the vital oil pressure required for your sports...
€39.71€52.94Regular price-25% offPrice
Sur commande ou en cours de réappro
€9.31
Price
Sur commande ou en cours de réappro
€9.31
Price
Genuine Renault Oil Pump Fixing Screw for Clio 2 RS, Clio 2 Gr N, Clio 2 X65 Cup, Clio 3 RS, Clio R3, Clio 3 X85 Cup, Megane 2 RS, Megane 3 RS, Megane N4. Ensure optimal oil pump retention with this essential part.
Also discover the compatible oil pump for complete installation.
€9.31Price
Sur commande ou en cours de réappro
€30.96
Price
Sur commande ou en cours de réappro
€30.96
Price
Ensure perfect sealing of your cooling system with this genuine Renault water housing gasket , specifically designed for plastic water housings on the Renault Twingo 2 RS . Prevent leaks and overheating with this original quality part.
€30.96Price
Ce kit est spécialement conçu pour la Renault Clio 4 RS Turbo. Il comprend le tuyau de silicone conçu sur mesure combiné avec un haut débit filtre de cône non huilée en coton permettant une excellente filtration. Tout le nécessaire est fourni dans le kit, y compris les colliers en acier inoxydable de qualité. Ce kit a été testé et permet un gain jusque 4 chevaux; ce gain peut être amplifier...
€207.73Price
The original Renault blue water temperature sensor is an essential part to ensure precise engine temperature control for your Renault Clio 2 RS , Clio 2 GR N , Clio 2 X65 CUP , Clio 3 RS , Clio 3 X85 CUP , Megane 2 RS , Megane 3 RS , and Megane N4 ....
€57.26Price
Capteur Température d'eau Twingo R1 et R2
Référence: 7711162900
€39.94Price
Demi bac à batterie pour batterie Braill 2618
€42.67Price
Collier serrage inox (durite) diametre 16-25mm
Vendu à l'unité
€1.00Price
- On sale!
Sur commande ou en cours de réappro
€29.50
Price
Sur commande ou en cours de réappro
€29.50
Price
Adaptateur sonde température d'eau 10x100 sur durite 28mm
€29.50Price
Démarreur échange standard Clio Gr N
Consigne de 25€ HT vous sera rendu à la récéption de l'ancienne matière
€226.32Price
Vis M6-16 de support d’arrêt de gaine Twingo R2
€0.91Price
Sur commande ou en cours de réappro
€122.90
€245.81
Regular price
-50% off
Price
Sur commande ou en cours de réappro
€122.90
€245.81
Regular price
-50% off
Price
Kit distribution origine Twingo 2 RS
€122.90€245.81Regular price-50% offPrice
Sur commande ou en cours de réappro
€38.30
Price
Sur commande ou en cours de réappro
€38.30
Price
Courroie d'accessoire Megane 3 RS et N4 pour montage avec poulie suppression Clim
Référence: 7711167284
€38.30Price
Sur commande ou en cours de réappro
€46.10
Price
Sur commande ou en cours de réappro
€46.10
Price
Rallonge SAV Alternateur Formule Renault FR 2.0 Tatuus
€46.10Price
Joint de boitier papillon Megane 2 RS
Véritable produit d'origine
€8.40Price
Sur commande ou en cours de réappro
€571.27
Price
Sur commande ou en cours de réappro
€571.27
Price
Raccord rapide Staubli Réservoir Souple Twingo R1 et R2
€571.27Price
Sur commande ou en cours de réappro
€72.00
Price
Sur commande ou en cours de réappro
€72.00
Price
Genuine Renault Coolant Reservoir (expansion tank) for Megane 3 RS. Ensure the proper functioning of your cooling system with this authentic part.
Also discover our compatible reservoir cap for a complete replacement.
€72.00Price
Épingle d’arrêt câble d'accélérateur Twingo R2
€3.42Price
Gicleur Piston 2-4 Clio 2 RS1 et RS2
Vendu à l'unité
€14.44Price
Ensemble console façade équipée Clio R3
7711160763
€1,123.80Price
- New
- Pack
- New
- Pack
Do not risk a fatal oil pressure drop or bottom-end engine damage during endurance racing or extreme driving conditions. The Motul 300V Le Mans 20W60 Oil Change Kit (6 Liters) with Engine Flush cleaner is specially engineered to provide maximum mechanical strength and...
€124.90€130.72Regular price-€5.82 offPrice
- New
- Pack
- New
- Pack
Do not risk oil starvation, rod bearing failure, or total oil pressure loss during intense track sessions under extreme heat. The Motul 300V Competition 15W50 Oil Change Kit (6 Liters) with Engine Flush cleaner is specially formulated to deliver an unbreakable lubricant film...
€124.90€130.72Regular price-€5.82 offPrice
- New
- Pack
- New
- Pack
Do not risk hot oil film breakdown or mechanical component seizure during track sessions or rallying. The Motul 300V Competition 10W40 Oil Change Kit (6 Liters) with Engine Flush cleaner is specially engineered to provide ultra-stable oil pressure and protect the bottom end...
€124.90€130.72Regular price-€5.82 offPrice
- New
- Pack
- New
- Pack
Do not risk oil film breakdown or oil pressure drop during extreme track sessions or racing. The Motul 300V Competition 5W50 Oil Change Kit (6 Liters) with Engine Flush cleaner is specially formulated to withstand extreme thermal stress and protect the rotating assembly of...
€124.90€130.72Regular price-€5.82 offPrice