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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
Safeguard your cooling system with this genuine Renault expansion tank cap rated at 1.4 Bar . Specifically engineered for legendary performance models such as the Renault Super 5 GT Turbo , Clio Williams , and R21 2L Turbo , it ensures optimal pressure regulation to prevent engine overheating. A vital precision...
€28.78Price
The Renault Sport water hose (ref. 7711154249 ) is an essential part to ensure optimal coolant circulation between the water/oil heat exchanger and the radiator of your Renault Clio 2 X65 Cup . It guarantees a stable engine temperature and optimal performance.
€77.62Price
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Ensure the longevity and performance of your Renault Megane 3 RS with our complete oil change kit . It includes 6 liters of ELF SRX 5W40 oil (the oil recommended by the manufacturer during vehicle development), a genuine Renault oil filter , and the drain plug gasket . Essential for optimal...
€63.30€74.47Regular price-15% offPrice
Kit de fils d'allumage MAGNECOR - Renault Clio 16S/Williams
€150.38Price
The Mégane 3 RS oil filter provides optimal protection and performance for your engine, ensuring efficient filtration of impurities and long-lasting durability , even in the most demanding conditions.
€8.52€11.03Regular price-€2.51 offPrice
Poulie de déphasage
Veritable Produit Renault vendu dans sa boite
€197.06Price
Huile moteur Total Quartz Racing 10w60
Produit préconisé par Renault sport pour la Mégane N4
Référence: 7711166390
Vendu en bidon de 1L
€15.42Price
Motul 300V Competition Engine Oil 10W40 2L - Performance and Protection for Classic and Modern Sports Cars
Don't let the age of your sports car impact its performance. engine oil is specially formulated to offer optimal protection and increased performance, suitable for demanding classic and modern engines. 2-liter can.
<p...
€39.99Price
Jeu de Bougies Renault (fabriqué par NGK) (Vendu par 4) pour Clio 16S
Produit d'origine Renault
€36.05Price
- Pack
- Pack
Kit Vidange Elf Evolution SXR comprenant 3 bidons de 2 Litres d'huile Elf Evolution SXR 5w40 (préconisation Constructeur), 1 filtre à huile Renault et 1 joint de vidange
€67.23€74.70Regular price-10% offPrice
Bidon de 2L de ELF FE 5W30
Huile Préconisé par Renault pour l'entretien de la Megane RS DCI
€19.50Price
Kit joints spy et vis arbres à cames
€77.92€111.31Regular price-30% offPrice
Optimize your engine's health with Motul Engine Flush (300mL). This high-performance pre-oil change treatment is essential for removing deposits, sludge, and combustion residues before introducing fresh oil.
Specially formulated for performance...
€10.75Price
Safeguard the mechanical reliability and thermal efficiency of your high-performance engine with the Genuine Renault Sport Water Pump for F4R and F4Rt engines . This authentic factory replacement component is essential to ensure optimum coolant circulation under intense road...
€117.43Price
Gearbox Drain Plug Washer – 16 mm
The Renault drain plug washer, reference 7703062062 , is a sealing component designed to help prevent oil leaks at a compatible drain...
€1.32Price
Renault Sport and Alpine Engine Drain Plug Seal
The engine drain plug seal , reference 1102601M02 , is a sealing component used at the engine oil drain...
€2.92Price
Control your engine's temperature with this genuine Renault thermostat with an opening temperature of 75°C . Specifically designed for the Clio 3 RS , it also mounts without modification on the Clio 2 RS , allowing the cooling circuit to open more quickly. This part is essential for limiting temperature spikes and preventing the risk of engine overheating ...
€78.18Price
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€71.22
€79.33
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En Stock
€71.22
€79.33
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-€8.11 off
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Set of 4 Original Renault Spark Plugs - Clio 2 RS / Gr N / X65 Cup
Optimize the performance of your Renault Clio 2 RS with this set of 4 original Renault spark plugs. Essential for perfect ignition and optimal combustion. Compatibility: Clio 2 RS, Clio 2 Gr N, Clio 2 X65 Cup.
Original Renault Part
Set of 4 spark plugs ...
€71.22€79.33Regular price-€8.11 offPrice
Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
€20.80Price
Fixation supérieure droite radiateur Twingo R2
€15.55Price
En Stock
€39.99
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€39.99
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Motul 300V Competition Engine Oil 5W40 2L - Ultimate Performance for Racing
Don't let your competition vehicle's performance be compromised. engine oil is the ultimate choice for maximum protection and unmatched track performance. Specifically developed formula for extreme racing demands. 2-liter can.
Also discover our...
€39.99Price
Denso Iridium Spark Plugs for Mégane RS - Maximum Performance and Reliability
Boost your Mégane RS's performance with Denso Iridium spark plugs, designed to deliver a stronger spark and more efficient combustion. With their iridium electrode, these spark plugs ensure better engine responsiveness, optimized fuel consumption, and increased longevity compared to standard plugs. ...
€88.16Price
Durites De reniflard Renforcées pour toutes Megane 2 RS. Produit de la marque Samco Sport Le kit est composé de 4 pièces.
€82.00Price
Entretoise galet distribution culasse Clio Gr N 8200607654
€12.06Price
Coussinets bielle ( X=48 )
Le prix est pour 8
Produit remplacé, vous trouverez le produit de remplacement ci dessous ⬇️
€99.36Price
Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
€224.35Price
Renault Mégane 3 RS Clutch Kit (Genuine)
Replace your worn clutch with this genuine Renault kit, designed specifically for the Mégane 3 RS (all versions). Ensures optimal transmission and durable performance. Essential for maintaining your sports vehicle's performance.
€277.74€396.77Regular price-30% offPrice
Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
€95.21Price
The original Renault flywheel side oil seal is an essential part to ensure engine sealing for your Renault Clio 2 RS, Gr N, X65 Cup, Clio 3 RS, R3, X85 Cup, Mégane 2 RS, and Mégane 3 RS . Prevent oil leaks and maintain your vehicle's performance with this authentic replacement part.
€30.64Price
Support réservoir de refroidissement Twingo R2
€34.36Price
Joint de décanteur Clio 2 RS et Clio 3 RS Joint se trouvant entre le décanteur et le plenum
€8.57Price
Protect your high-performance engine's internal components with the Mecacyl CR 100 ml engine hyper-lubricant. This unique surface treatment mixes directly with your fresh oil to drastically reduce internal friction, lower operating temperatures, and optimize engine...
€28.50Price
Radiateur eau sans clim Twingo RS et R1 Référence: 7711162739
€223.27Price
The 16mm bimaterial gasket provides a reliable and durable sealing solution, suitable for various industrial, automotive, and domestic applications . Made from robust materials, it ensures a precise fit, easy installation, and optimal performance even under demanding conditions such as high temperatures and pressures.
€3.00Price
Durite inférieure radiateur Clio 2 Cup
Référence: 7711155360
€689.93Price
En Stock
€80.84
€115.49
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-30% off
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€80.84
€115.49
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Do not let poor combustion stifle the potential of your F4RT engine. This set of 4 genuine Renault spark plugs is specifically calibrated to meet the extreme thermal demands of the Renault Megane 3 RS (250, 265, and 275 hp). By choosing these manufacturer-certified plugs, you avoid misfires under full load and protect your cylinders from the risks of...
€80.84€115.49Regular price-30% offPrice
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€158.84
€252.12
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-37% off
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En Stock
€158.84
€252.12
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Ensure your engine's longevity with this genuine RENAULT timing belt kit , engineered for the high-performance demands of the Renault Clio 2 RS , as well as Group N and X65 Cup racing versions. This complete pack guarantees maintenance that meets Renault Sport standards.
...
€158.84€252.12Regular price-37% offPrice
Capteur PMH Clio 2 RS
Selon votre modèle actuel de PMH, il est peut être nécessaire de prendre l'adaptateur proposé en bas de page en supplément.
€57.84Price
Jeu de 6 durites Silicone Forge. Ce kit remplace avantageusement les durites d'origines de la voiture car beaucoup plus résistantes. Apporte également un look visuel racing à votre moteur.
€317.09Price
Pompe à eau K4M Twingo RS R1 et R2
Référence: 8200582675
Pompe à eau équipé de la poulie métallique, et non de la version en plastique moins fiable.
€105.52Price
Huile moteur HTX 3823 0W20 4L Référence: 7711167580
€90.50€120.66Regular price-25% offPrice
Protect your engine block against catastrophic mechanical failure during structural timing belt overhauls with this professional RENAULT Camshaft Timing Tool . Specifically engineered to slot into the rear alignment grooves of Renault Sport twin-cam engines (covering F4R,...
€96.37Price