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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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Câble liaison batterie entrée coupe circuit Megane N4
€25.58Price
The original Renault engine fan resistor is an essential regulation part to ensure optimal engine cooling on your Renault Clio 3 RS , Renault Twingo 2 RS , or Renault Twingo R1 . Maintain a stable engine temperature and prevent overheating with this original quality resistor. We ship worldwide.
€85.20Price
Capteur température d'eau pour boitier d'eau plastique
€40.15Price
Huile Motul Eighties 10w40 (bidon de 2L) Huile moteur semi-synthétique multigrade spécialement conçue pour les véhicules classiques, Modern Classic et Youngtimer des années 1970, 1980 et 1990 équipés de moteurs 4 Temps, Essence ou Diesel, atmosphériques, compressés ou turbocompressés, à injection ou carburateur, de ces décennies.
€19.99Price
Ensure a perfect seal for your engine's ventilation system with this genuine Renault oil decanter gasket . Essential for your Renault Clio 2 RS (excluding Phase 1), Clio 3 RS, Megane 2 RS, or Megane 3 RS , it prevents oil leaks, excessive consumption, and circuit clogging. Don't let a faulty gasket compromise the cleanliness and performance of your sports engine.
€39.17Price
Patte fixation support durites d'eau Megane 3 RS et N4
€6.37Price
Patte supérieure gauche fixation radiateur Twingo RS
€14.10Price
Genuine Renault Water Pump Inlet Hose for Renault Clio 3 RS, Megane 2 RS, and Megane 3 RS. Essential part for optimal engine cooling. Renault quality and reliability.
€81.02Price
Kit joint torique pour régulateur de pression de rampe
€13.08Price
This Adapted Accessory Belt is a critical component for converting to an Air Conditioning Delete Kit on your Renault Mégane 4 RS . Its dimension is precisely defined to compensate for the removal of the AC compressor.
This superior quality belt is essential for...
€29.34Price
Ensure perfect electrical conductivity with this genuine Renault positive battery terminal . Specifically designed for the Renault Megane 3 RS and Megane N4 , this battery clamp guarantees reliable starting and a stable power supply for your onboard electronic equipment, even under intensive use.
...
€10.58Price
This Specific Accessory Belt is an essential component when installing an Air Conditioning Delete Kit on your Alpine A110 . Its length is adjusted to bypass the air conditioning compressor that has been removed.
A high-quality part, it guarantees the correct...
€25.25Price
The Optimiz Access Specific Accessory Belt is the essential part required to finalize the installation of the A/C Delete Kit on your Renault Clio 4 RS . Due to the change in the path and distance between the pulleys following the removal of the air conditioning compressor, the original belt can...
€29.34Price
Don't risk a costly breakdown! This cooling hose for heater radiator inlet , an original Renault part , is specifically designed for your Renault Megane 3 RS .
It replaces the hose located at the engine...
€56.16Price
Pignon de vilebrequin claveté Twingo 2 RS y compris R1 et R2
€75.14Price
Bouchon de répartiteur d'admission Clio 3 RS
€32.09Price
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- Pack
Kit Vidange Motul 300V comprenant 3 bidons de 2 Litres d'huile Motul 300V 5w40, 1 filtre à huile de marque Purflux et 1 joint bi matière de 16mm
€122.26€131.47Regular price-7% offPrice
Câble alimentation protection batterie Megane 3 RS et N4
€96.72Price
Modine (echangeur eau huile) Clio 16S et Williams
€343.21Price
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- Pack
Kit Vidange Motul 300V comprenant 3 bidons de 2 Litres d'huile Motul 300V 15w50, 1 filtre à huile de marque Purflux et 1 joint bi matière de 16mm
€127.52€131.47Regular price-3% offPrice
Ecope supérieure de radiateur Clio R3 "MAXI"
Ref: 7711160688
€202.54Price
Fuel injection rail Renault Clio 2 RS Phase 2 & 3
Give your Renault Clio 2 RS Phase 2 or 3 an optimum fuel supply with the genuine Renault injection rail!
Designed for sports driving enthusiasts, this rail guarantees a constant and precise fuel flow, even at high engine speeds, for optimum performance and an unrivalled driving experience.
...
€32.92Price
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- Pack
Kit Vidange Motul 300V comprenant 3 bidons de 2 Litres d'huile Motul 300V 10w40, 1 filtre à huile de marque Purflux et 1 joint bi matière de 16mm
€127.52€131.47Regular price-3% offPrice
Vis de fixation poulie folle clim Clio 3 RS - Megane 2 RS - Megane 3 RS.
Vendue à l'unité - 3 Vis sont nécessaires
€2.34Price
- Pack
- Pack
Kit Vidange Motul 300V comprenant 3 bidons de 2 Litres d'huile Motul 300V 5w40, 1 filtre à huile de marque Renault et 1 joint bi matière de 16mm
€121.94€134.00Regular price-9% offPrice
Don't let your Renault Megane 3 RS lose its vigor! This original RENAULT injector is essential for maintaining your engine's optimal performance. Avoid excessive fuel consumption and a drop in power by choosing the quality and reliability of a part specifically designed for your sports vehicle. You can find associated complementary products (notably the...
€84.00Price
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
Kit complet de durites d'eau pour Clio 3 RS.
Convient à toutes les Clio 3 RS
Ce kit vient en lieu et place des durites d'origine et les remplacent avantageusement.
€445.18Price
Véritable outil d'origine pour le blocage des poulies d'arbres à cames nécessaire pour le remplacement de la distribution pour les moteurs F4R de Clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS. Kit Spécifique au F4R Renault Sport
€139.02Price
Secure the sensors of your Megane 2 RS with the FORGE MOTORSPORT FMRCLMP kit. Composed of 2 reinforcements, it ensures optimal support for the depression hose and pressure sensor. Avoid performance losses and reliability issues.
€36.80Price
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
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
Injecteur DEKA VII Twingo RS et R1 Injecteur pour moteur K4M
Référence: 8200859183
€87.35Price