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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
€174.97
Price
Sur commande ou en cours de réappro
€174.97
Price
Original RENAULT Water/Oil Cooler for Clio 2 X65 Cup & Clio 3 RS
Do not risk engine overheating and loss of performance . This original RENAULT water/oil heat exchanger is the vital component for maintaining optimal <span...
€174.97Price
Relais de courant
Nous contacter pour s'assurer de la compatibilité avec votre véhicule.
€38.09Price
Sur commande ou en cours de réappro
€289.00
Price
Sur commande ou en cours de réappro
€289.00
Price
Do not take the risk of breakdown anymore! The reinforced silicone water hose kit for Renault Mégane 3 RS is the essential upgrade for your engine's reliability . Advantageously replacing the original rubber hoses, which are often prone to cracking or swelling under heavy use, these hoses are designed to...
€289.00Price
Sur commande ou en cours de réappro
€51.07
Price
Sur commande ou en cours de réappro
€51.07
Price
The original Renault black water temperature sensor is an essential part to ensure precise engine temperature control for your Renault Clio 3 RS , Renault Clio 3 X85 Cup , Renault Megane 3 RS , and Renault Megane N4 . It guarantees reliable information to optimize performance and prevent overheating. We ship...
€51.07Price
Sur commande ou en cours de réappro
€107.33
Price
Sur commande ou en cours de réappro
€107.33
Price
Tuyau entrée sortie radiateur de chauffage Megane 2 RS
€107.33Price
Relais resistance 35/15A
Référence: 8200337665 remplace les ref : 8200900374 et 8200351489
€35.54Price
- Pack
- Pack
The mechanical throttle body gasket is a crucial performance part for optimizing the engine operation of your Renault Clio R3 or Renault Clio 3 X85 Cup . Ensure flawless sealing and maintain the power of your competition vehicle with this high-quality replacement gasket.
€7.93Price
- Pack
- Pack
The mechanical throttle body gasket is a quality part essential for optimizing the engine performance of your Renault Twingo R2 . Ensure perfect sealing and maintain the performance of your rally vehicle with this reliable replacement gasket.
€7.93Price
- Pack
- Pack
The mechanical throttle body gasket is a quality part essential for optimizing the operation of your Renault Clio 2 RS Phase 1, Clio Gr N , or Clio 2 X65 Cup . Ensure perfect sealing and maintain your engine's performance with this reliable replacement gasket.
€7.93Price
Ensemble fixation hélice GMV Clio 2 RS et Gr N
€8.28Price
Bague antidemarrage Clio 2 RS y compris Gr N
€214.78Price
Sur commande ou en cours de réappro
€73.00
Price
Sur commande ou en cours de réappro
€73.00
Price
Conduit d'air (durite) jonction boite à air / papillon Twingo 2 RS
€73.00Price
Sur commande ou en cours de réappro
€303.66
Price
Sur commande ou en cours de réappro
€303.66
Price
Maintain optimal intake pressure for your Mégane 3 RS ! Get this Genuine RENAULT Intake Hose , connecting the intercooler to the Sound Pipe . This crucial part includes the already fitted boost sensor (MAP sensor) , guaranteeing accurate pressure readings for your sports car's engine...
€303.66Price
Genuine Renault Fuel Supply Hose for Clio 2 RS. Ensure optimal and reliable fuel supply with this high-quality fuel line.
€71.32Price
Support fusible (borne + batterie) Twingo 2 RS
€21.80Price
Régulateur de pression d'essence de marque Sytec. Regulateur de 2 à 6 bars. Un manomètre peut y etre placé. Nous pouvons également vous fournir un support afin de le fixer corectement au véhicule. Plusieurs couleurs disponibles. Argent, Bleu, Rouge et Violet
€198.65Price
Conduit d'air Clio 2 RS Phase 2 / Phase 3
Conduit permettant l'amenée d'air frais sur le coté de la boite à air d'origine
€62.35Price
Gestion Sybelle Challenger 5 comprenant
- Le calculateur Challenger 5
- Le faisceau semi fini Challenger 5
- Le module d'allumage 2 voies
- La sonde de température d'air
- La sonde de température d'eau
- Le cordon FTDI
€880.00Price
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 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
Alternateur 120A Clio Gr N Ragnotti
Référence: 7711129654
€294.12Price
Durite d'admission également appelée durite d'induction de Clio 4 RS. 2 Couleurs possibles: Rouge et Bleue
Uniquement compatible avec la version Euro 5 de la Clio 4 RS (à verifier sur la carte grise)
Non Compatible avec La trophy (voir nos autres produits)
€90.00Price
Kit de 9 Durites Silicones pour Super 5 GT Turbo Phase 1
Noir mat afin de rester dans l'esprit d'origine de la voiture
Parfait pour une restoration
€210.00Price
Sur commande ou en cours de réappro
€354.30
Price
Sur commande ou en cours de réappro
€354.30
Price
Boîtier électronique F4R 732 Clio Gr N
7711129434
€354.30Price
Répartiteur admission 160cv Twingo R2
Référence: 7711162688
€245.69Price
Sur commande ou en cours de réappro
€461.26
Price
Sur commande ou en cours de réappro
€461.26
Price
Ecope Adm dynamique boitier filtre assemblée Twingo R2
Référence: 7711167592
€461.26Price
Support Batterie en Aluminium pour BAtterie lithium 30 Amp
€34.99Price
Genuine Renault Fuel Vapor Separator Hose for Megane 2 RS
This hose, commonly prone to breakage at the clip near the throttle body, ensures optimal evacuation of fuel vapors. Replace your defective part with a genuine piece to guarantee the reliability and performance of your engine.
€96.05Price
Sur commande ou en cours de réappro
€474.36
Price
Sur commande ou en cours de réappro
€474.36
Price
Calculateur Clio Gr N Ragnotti 7711129630 / 8200324543
€474.36Price
Coiffe de Carbu Alu de grande qualité réalisé par l'accessoiriste Forge (très connu pour ses réalisations d’échangeur...)
€154.99Price