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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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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
A key component for ignition and injection, this Genuine Renault Camshaft Position Sensor guarantees the accuracy of information transmitted to your sports car's ECU. Essential for the proper functioning of your Renault Clio 3 RS Phase 2, Clio 3 X85 Cup, and Renault Mégane 3 RS .
Choose Manufacturer...
€76.50Price
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
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
This replacement coil plug is designed to replace faulty original coil plugs on Renault Clio 3 RS, Megane 2 RS, Megane 3 RS, and Twingo 2 RS. It ensures a reliable connection and optimal performance of the ignition system.
€4.20Price
Sonde lambda Clio 2 RS et X65 Cup
Convient en Aval des Clio 172
et pour chacunes des sondes pour la 182
€81.59Price
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
Bougie origine Megane 4 GT 205
Vendue à l'unité
€21.91€31.30Regular price-30% offPrice
Pignon de vilebrequin claveté Twingo 2 RS y compris R1 et R2
€75.14Price
Sonde lambda (oxygene) Clio 3 RS
2 Modeles existent, la difference se situe au niveau des connecteurs des prises.
Nous contacter pour confirmer la compatibilité
€233.69Price
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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
Kit Admisssion Forge Motorsport Megane 4 RS
Produit developpé dans le but de
- Garder des temperatures d'admission interessantes et les plus basses possibles
- Ameliorer l'afflux d'air
- Ameliorer l'esthetique de la baie moteur
Apres de nombreux essais, les resultats obtenus sont
+ 15ch
Ce gain peut etre superieur en associant ce kit...
€361.00Price
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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
Upgrade conduit admission forge avec adaptateur Megane 4 RS.
Produit developpé pour supprimer la restriction d'origine de l'admission.
Bien qu'apportant deja un plus sur une voiture d'origine, ce produit a encore plus d'interet en cas de vehicule reprogrammé
€187.01Price
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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
Régulateur pression gaz carter Clio 3 RS
€61.60Price
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
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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
En Stock
€39.99
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En Stock
€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
Joint Collecteur Admission Clio 3 RS Joint permettant de faire l’étanchéité entre le moteur et le collecteur d'admission. Il est conseillé de le changer lors à chaque démontage
€12.50Price
Jeu de Bougies Renault (fabriqué par NGK) (Vendu par 4) pour Clio 16S
Produit d'origine Renault
€36.05Price
Tuyau de depression de diamètre 4mm. Sert généralement pour l'installation de Dump Valve. Prix au metre
€6.00Price
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
En Stock
€71.22
€79.33
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-€8.11 off
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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
En Stock
€50.21
€83.68
Regular price
-40% off
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En Stock
€50.21
€83.68
Regular price
-40% off
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Optimize your engine's combustion cycle with this genuine Renault ignition coil . Sold individually, it is the essential choice for Renault Megane 2 RS , Clio 3 RS , Megane 3 RS , and Twingo 2 RS owners looking to maintain optimal ignition performance.
Certified...
€50.21€83.68Regular price-40% offPrice
Bidon de 2L de ELF FE 5W30
Huile Préconisé par Renault pour l'entretien de la Megane RS DCI
€19.50Price
Durite d'admission d'air silicone Forge Motorsport qui se fixe en sortie de boite à air. Celle ce permet d'augmenter le débit d'air notamment grâce à un diamètre plus gros ainsi qu'une surface lisse interne. Se monte en lieu et place de celle d'origine Plusieurs couleurs disponibles
€159.77Price
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
Optimize the air intake of your Renault Twingo R2 (195/205hp) with this official RENAULT SPORT air filter housing diverter . Developed for competition, this part with reference 7711167591 is essential for maximizing airflow and ensuring maximum engine power across the entire operating range. An indispensable addition for engine performance .
€511.63Price
Genuine Renault Crankshaft Sprocket - Multi-RS Models
Ensure the performance and reliability of your engine with this genuine Renault crankshaft sprocket. Compatible with Clio 2 RS, Clio 3 RS, Megane 2/3 RS and competition models. Essential part for timing adjustment.
€74.21Price
Ensemble de joints nécessaire au bon remontage du moteur de Megane 3 RS
Véritable produit d'origine
€251.47Price
Kit de fils d'allumage MAGNECOR - Renault Clio 16S/Williams
€150.38Price
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
Don't accept any loss of performance for your Mégane 3 RS or Mégane N4 ! This strictly genuine Renault air/air intercooler is the cornerstone for maintaining your engine's power and reliability. Without it, your sports vehicle risks never reaching its full potential, especially in extreme conditions. Find complementary products at the bottom...
€493.96Price
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