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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
Banjo alimentation rampe essence Twingo R1 et R2 et Clio R3
Référence: 7711160198
€57.72Price
Cale admission porte injecteur Twingo 2 RS y compris R1 et R2 160cv
Référence: 8200329496
€194.51Price
Butée basse pédale d'accélérateur Twingo R2
Référence: 7711157182
€35.68Price
Don't let a seized cable compromise your responsiveness on the track. This official Renault Sport throttle cable is specifically designed for the Renault Clio 3 X85 Cup .
Genuine manufacturer part (Reference 7711160160).
High-resistance design for intensive competition ...
€52.69Price
Joint de boitier papillon Megane 3 RS
Véritable produit d'origine
€32.14Price
Vis Banjo alimentation rampe Twingo R1 et R2
Référence: 7711129199
€25.69Price
The original Renault fuel gauge/pump module is an essential part to ensure reliable and precise fuel supply on your Renault Megane 2 RS . Please note, there are two different assemblies for this vehicle. Contact us with your vehicle's VIN for accurate guidance.
€396.19Price
Don’t let your engine breathe hot air and lose precious horsepower. This genuine Renault Sport air filter screen (reference 7711155407 ) is the core component of the induction system for the Renault Clio 2 X65 Cup . Designed to isolate the cold air flow, it ensures optimal oxygen density for consistent performance under racing conditions.
€91.08Price
Admission ITG MAXOGEN pour CLIO 4 RS
N'hesitez pas à la completer avec un BOA afin de la gaver en air frais
€329.00Price
Tuyau carburant entre coupling Goodridge et rampe Megane N4
Référence: 7711167090
€146.16Price
Sur commande ou en cours de réappro
€407.03
Price
Sur commande ou en cours de réappro
€407.03
Price
Ensure an instantaneous start for your Renault Clio 4 RS (all phases) with this brand-new genuine Renault starter motor . Unlike remanufactured units, this 100% new product guarantees maximum reliability and increased longevity for your 1.6 Turbo engine. Don't risk an immobilizing breakdown—choose manufacturer...
€407.03Price
Sur commande ou en cours de réappro
€77.12
Price
Sur commande ou en cours de réappro
€77.12
Price
Do not let a minor electrical failure lead to a major breakdown. This genuine Renault power distribution box is a critical component of your Renault Megane 3 RS starting circuit. Integrating essential high-power fuses , specifically for the starter motor and alternator protection, it ensures secure energy management from your...
€77.12Price
Jauge pompe Clio 2 RS 1
Modele spécifique ayant le régulateur sur la pompe
€188.74Price
Sur commande ou en cours de réappro
€272.90
Price
Sur commande ou en cours de réappro
€272.90
Price
Sur commande ou en cours de réappro
€24.00
Price
Sur commande ou en cours de réappro
€24.00
Price
Tuyau nitrile GOODRIDGE DASH 6 (le m)
Le...
€24.00Price
Flexible à carburant Réservoir / Té Clio 3 Cup
Référence: 7711162421
€160.52Price
Sur commande ou en cours de réappro
€89.75
Price
Sur commande ou en cours de réappro
€89.75
Price
Don't let a degraded component restrict your sports car's performance. This genuine Renault upstream air filter duct is the essential manufacturer part required to restore optimal intake airflow to your Renault Megane 4 RS .
Subjected to thermal variations under the hood and high-RPM vibrations, a porous or cracked intake...
€89.75Price
Do not compromise the lubrication of your VR38DETT engine. This genuine Nissan oil filter is the only component certified by the manufacturer to ensure constant oil pressure and optimal filtration of impurities. Essential for every engine oil change , it preserves the longevity of your Nissan GTR R35 , whether for daily...
€24.71Price
Admission Dynamique spécifiquement conçu pour la Mégane II RS
Elle se monte en lieu et place
Elle se place horizontalement et permet donc de place le boa fournir de sorte qu'elle soit gavée en air frais
€290.96Price
Filtre de Remplacement Green pour Gt Turbo Se monte en lieu et place. La pose d'un filtre GREEN en remplacement de votre filtre d'origine en papier permet l'augmentation de la quantité d'air admise par votre moteur. Celui-ci respire mieux, consomme moins et gagne en puissance (environ 2CV selon les modèles) et surtout en couple à bas régime. Les filtres GREEN sont lavables et réutilisables...
€52.00Price
Filtre de Remplacement BMC pour Clio 3 RS
Vient se placer en lieu de place du filtre à air d'origine.
€68.38Price
Sur commande ou en cours de réappro
€55.00
Price
Sur commande ou en cours de réappro
€55.00
Price
Don't let a restrictive factory paper filter choke your turbo engine's breath. The washable cotton Green Filter sport air filter for Renault Megane 2 RS and Megane 3 RS frees up intake airflow to your 2.0 Turbo TCe engine while delivering flawless filtration...
€55.00Price
Filtres reniflard en coton. Inclus: 3 adaptateurs plastiques Dimension: h=65mm; diamètre=65mm Diamètre maxi: 25mm
€12.38Price
Boite a Air BMC CDA Clio 2 RS Diametre Entrée 70mm Diametre Principal 150 mm Longueur 160 mm
€195.72Price
Pompe à essence gros Debit Clio 2 RS Pression max: 8 bars Débit: 287L/H
€95.00Price
Filtre de remplacement Pipercross Pour Renault Clio 3 RS Il Remplace avantageusement votre filtre de serie. Les filtres Pipercross sont nettoyables et donc réutilisables.
€52.00Price
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
€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
€2.20
Price
Sur commande ou en cours de réappro
€2.20
Price
The original Renault accelerator cable clip is an essential fastening part to ensure precise and reliable accelerator operation on your Renault Clio 2 RS , Clio 2 X65 Cup , or Clio 2 Gr N . Ensure a secure connection and optimal accelerator response with this original quality clip. We ship worldwide.
€2.20Price
Sur commande ou en cours de réappro
€67.00
Price
Sur commande ou en cours de réappro
€67.00
Price
Don't let your engine suffocate with a restrictive factory paper filter. The ITG WB-451 replacement air filter is the essential upgrade to unlock the full potential of your Renault Clio 2 RS (RS2 and RS3 172/182hp). Featuring unique Tri-Foam technology , it provides superior filtration without sacrificing...
€67.00Price
Filtre de Remplacement BMC pour Clio 4 RS Vient se placer en lieu de place du filtre à air d'origine.
€67.32Price
Sur commande ou en cours de réappro
€52.00
Price
Sur commande ou en cours de réappro
€52.00
Price
Filtre de remplacement Pipercross Pour Renault Clio 2 RS2, RS3/RS2004
Il Remplace avantageusement votre filtre de serie.
Les filtres Pipercross sont nettoyables et donc réutilisables.
€52.00Price
Filtre de Remplacement de marque ITG.
Livraison sous 10 jours si dispo.
€36.00Price