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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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Bague étanchéité arbre à cames Twingo R2Twingo RS (R1/R2) Exhaust Camshaft Oil Seal - Original
      The original Renault exhaust camshaft oil seal is an essential sealing part for your Renault Twingo RS, Twingo R1 , or Twingo R2 . It ensures a tight seal between the camshaft, cylinder head, and valve cover, preserving your engine's performance and reliability.
      €16.92Price
      Bague étanchéité arbre à cames Twingo R2Twingo RS (R1/R2) Exhaust Camshaft Oil Seal - Original
          The original Renault exhaust camshaft oil seal is an essential sealing part for your Renault Twingo RS, Twingo R1 , or Twingo R2 . It ensures a tight seal between the camshaft, cylinder head, and valve cover, preserving your engine's performance and reliability.
          €16.92Price
          En Stock
          €81.65 Price
          En Stock
          €81.65 Price
          Bielle Twingo RS R1 et R2 160Bielle Twingo RS R1 et R2 160
              Connecting Rod for Twingo RS R1 and R2 160: Enhance the durability and performance of your engine with this robust connecting rod, designed for extreme conditions and easy installation.
              €81.65Price
              Bielle Twingo RS R1 et R2 160Bielle Twingo RS R1 et R2 160
                  Connecting Rod for Twingo RS R1 and R2 160: Enhance the durability and performance of your engine with this robust connecting rod, designed for extreme conditions and easy installation.
                  €81.65Price
                  Durite modine/radiateur Clio 2 Cup
                      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
                      Durite modine/radiateur Clio 2 Cup
                          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
                          En Stock
                          €83.39 Price
                          En Stock
                          €83.39 Price
                          Boitier sortie eau sans calorstat Twingo R1 R2
                              Boitier sortie eau sans calorstat Twingo R1 R2 Référence: 7711162845
                              €83.39Price
                              Boitier sortie eau sans calorstat Twingo R1 R2
                                  Boitier sortie eau sans calorstat Twingo R1 R2 Référence: 7711162845
                                  €83.39Price
                                  Genuine RENAULT Oil Drain Plug - All Clio/Mégane RS Models
                                      Protect your engine against critical leaks! Replace your genuine oil drain plug with this RENAULT reference, essential for all Clio RS , Mégane RS models and competition derivatives (Gr N, R3, X85 Cup). A quality screw guarantees the seal of the oil pan (sump), preventing a ...
                                      €4.72Price
                                      Genuine RENAULT Oil Drain Plug - All Clio/Mégane RS Models
                                          Protect your engine against critical leaks! Replace your genuine oil drain plug with this RENAULT reference, essential for all Clio RS , Mégane RS models and competition derivatives (Gr N, R3, X85 Cup). A quality screw guarantees the seal of the oil pan (sump), preventing a ...
                                          €4.72Price
                                          Durite Forge Induction Megane 2 RSDurite Forge Induction Megane 2 RS
                                              Durite Forge Silicone. Se monte en lieu et place Plusieurs Coloris Disponibles
                                              €140.75Price
                                              Durite Forge Induction Megane 2 RSDurite Forge Induction Megane 2 RS
                                                  Durite Forge Silicone. Se monte en lieu et place Plusieurs Coloris Disponibles
                                                  €140.75Price
                                                  Bague étanchéité électrovanne déphasage Twingo RS, R1 et R2Bague étanchéité électrovanne déphasage Twingo RS, R1 et R2
                                                      Bague étanchéité électrovanne de déphasage Twingo RS, R1 et R2
                                                      €17.09Price
                                                      Bague étanchéité électrovanne déphasage Twingo RS, R1 et R2Bague étanchéité électrovanne déphasage Twingo RS, R1 et R2
                                                          Bague étanchéité électrovanne de déphasage Twingo RS, R1 et R2
                                                          €17.09Price
                                                          En Stock
                                                          €689.93 Price
                                                          En Stock
                                                          €689.93 Price
                                                          Durite inférieure radiateur Clio 2 Rs et Cup
                                                              Durite inférieure radiateur Clio 2 Cup Référence: 7711155360
                                                              €689.93Price
                                                              Durite inférieure radiateur Clio 2 Rs et Cup
                                                                  Durite inférieure radiateur Clio 2 Cup Référence: 7711155360
                                                                  €689.93Price
                                                                  En Stock
                                                                  €174.00 Price
                                                                  En Stock
                                                                  €174.00 Price
                                                                  Joint de Culasse renforcé Cometic Megane 3 RS 1.7Joint de Culasse renforcé Cometic Megane 3 RS 1.7
                                                                      Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.7 mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                      €174.00Price
                                                                      Joint de Culasse renforcé Cometic Megane 3 RS 1.7Joint de Culasse renforcé Cometic Megane 3 RS 1.7
                                                                          Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.7 mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                          €174.00Price
                                                                          En Stock
                                                                          €17.45 Price
                                                                          En Stock
                                                                          €17.45 Price
                                                                          Support inférieur écope boitier filtre Twingo R2
                                                                              Support inférieur écope boitier filtre Twingo R2 Référence: 7711167597
                                                                              €17.45Price
                                                                              Support inférieur écope boitier filtre Twingo R2
                                                                                  Support inférieur écope boitier filtre Twingo R2 Référence: 7711167597
                                                                                  €17.45Price
                                                                                  Durite Admission Clio 2 RSSilicone Air Induction Hose for Renault Clio 2 RS
                                                                                      Stop letting a perished or cracked factory hose choke your Clio 2 RS engine. This reinforced silicone induction hose is a direct replacement for the OEM rubber part, which is notorious for collapsing under vacuum. Available in various colors for a subtle or race-inspired customization , it ensures...
                                                                                      €69.00Price
                                                                                      Durite Admission Clio 2 RSSilicone Air Induction Hose for Renault Clio 2 RS
                                                                                          Stop letting a perished or cracked factory hose choke your Clio 2 RS engine. This reinforced silicone induction hose is a direct replacement for the OEM rubber part, which is notorious for collapsing under vacuum. Available in various colors for a subtle or race-inspired customization , it ensures...
                                                                                          €69.00Price
                                                                                          Durites de Reniflard et Wasegate Megane 2 RS
                                                                                              Durites De reniflard Renforcées pour toutes Megane 2 RS. Produit de la marque Samco Sport Le kit est composé de 4 pièces.
                                                                                              €82.00Price
                                                                                              Durites de Reniflard et Wasegate Megane 2 RS
                                                                                                  Durites De reniflard Renforcées pour toutes Megane 2 RS. Produit de la marque Samco Sport Le kit est composé de 4 pièces.
                                                                                                  €82.00Price
                                                                                                  En Stock
                                                                                                  €174.00 Price
                                                                                                  En Stock
                                                                                                  €174.00 Price
                                                                                                  Joint de Culasse renforcé Cometic Megane 3 RS 1.9Joint de Culasse renforcé Cometic Megane 3 RS 1.9
                                                                                                      Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.9 mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                                      €174.00Price
                                                                                                      Joint de Culasse renforcé Cometic Megane 3 RS 1.9Joint de Culasse renforcé Cometic Megane 3 RS 1.9
                                                                                                          Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.9 mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                                          €174.00Price
                                                                                                          Pompe à eau Origine Renault Clio 3 RS - Megane 2 RS - Megane 3 RSGenuine OEM Water Pump - Renault Clio 3 RS / Megane 2/3 RS
                                                                                                              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
                                                                                                              Pompe à eau Origine Renault Clio 3 RS - Megane 2 RS - Megane 3 RSGenuine OEM Water Pump - Renault Clio 3 RS / Megane 2/3 RS
                                                                                                                  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
                                                                                                                  En Stock
                                                                                                                  €50.73 €72.47 Regular price -30% off Price
                                                                                                                  En Stock
                                                                                                                  €50.73 €72.47 Regular price -30% off Price
                                                                                                                  Calorstat Clio 2 RS - Megane 2 RSGenuine Renault Thermostat - Megane 2 RS, Clio 2 RS & Cup
                                                                                                                      Optimize your engine's thermal regulation with this genuine Renault thermostat . Specifically designed for the Renault Megane 2 RS and Clio 2 RS , this calorstat guarantees rapid warm-up and protection against overheating during intense driving conditions. Certified genuine Renault...
                                                                                                                      €50.73€72.47Regular price-30% offPrice
                                                                                                                      Calorstat Clio 2 RS - Megane 2 RSGenuine Renault Thermostat - Megane 2 RS, Clio 2 RS & Cup
                                                                                                                          Optimize your engine's thermal regulation with this genuine Renault thermostat . Specifically designed for the Renault Megane 2 RS and Clio 2 RS , this calorstat guarantees rapid warm-up and protection against overheating during intense driving conditions. Certified genuine Renault...
                                                                                                                          €50.73€72.47Regular price-30% offPrice
                                                                                                                          En Stock
                                                                                                                          €22.74 Price
                                                                                                                          En Stock
                                                                                                                          €22.74 Price
                                                                                                                          Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                                                                                                                              Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                                                                                                                              €22.74Price
                                                                                                                              Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                                                                                                                                  Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                                                                                                                                  €22.74Price
                                                                                                                                  Flasque palier ( X2.30 )2.3mm Crankshaft Thrust Washer - Renault Clio RS & Megane RS
                                                                                                                                      Ensure the longevity of your bottom end with this genuine Renault crankshaft thrust washer pair . Featuring a precise thickness of 2.3 mm , these thrust bearings are essential for controlling crankshaft end play on F7R and F4R engines. A certified OEM part for Clio Williams, Clio 2 RS, Clio 3 RS, and...
                                                                                                                                      €43.51Price
                                                                                                                                      Flasque palier ( X2.30 )2.3mm Crankshaft Thrust Washer - Renault Clio RS & Megane RS
                                                                                                                                          Ensure the longevity of your bottom end with this genuine Renault crankshaft thrust washer pair . Featuring a precise thickness of 2.3 mm , these thrust bearings are essential for controlling crankshaft end play on F7R and F4R engines. A certified OEM part for Clio Williams, Clio 2 RS, Clio 3 RS, and...
                                                                                                                                          €43.51Price
                                                                                                                                          En Stock
                                                                                                                                          €279.71 Price
                                                                                                                                          En Stock
                                                                                                                                          €279.71 Price
                                                                                                                                          Kit 11 Durites Silicone Super 5 GT TURBO Ph 2Kit 11 Durites Silicone Super 5 GT TURBO Ph 2
                                                                                                                                              Kit de 11 Durites Silicones pour Super 5 GT Turbo Phase 2 Noir mat afin de rester dans l'esprit d'origine de la voiture Parfait pour une restoration
                                                                                                                                              €279.71Price
                                                                                                                                              Kit 11 Durites Silicone Super 5 GT TURBO Ph 2Kit 11 Durites Silicone Super 5 GT TURBO Ph 2
                                                                                                                                                  Kit de 11 Durites Silicones pour Super 5 GT Turbo Phase 2 Noir mat afin de rester dans l'esprit d'origine de la voiture Parfait pour une restoration
                                                                                                                                                  €279.71Price
                                                                                                                                                  En Stock
                                                                                                                                                  €12.50 Price
                                                                                                                                                  En Stock
                                                                                                                                                  €12.50 Price
                                                                                                                                                  Joint Collecteur Admission Clio 3 RS
                                                                                                                                                      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
                                                                                                                                                      Joint Collecteur Admission Clio 3 RS
                                                                                                                                                          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
                                                                                                                                                          En Stock
                                                                                                                                                          €224.35 Price
                                                                                                                                                          En Stock
                                                                                                                                                          €224.35 Price
                                                                                                                                                          Kit Joint Refection moteur Origine Clio 2 RS
                                                                                                                                                              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
                                                                                                                                                              Kit Joint Refection moteur Origine Clio 2 RS
                                                                                                                                                                  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
                                                                                                                                                                  En Stock
                                                                                                                                                                  €10.57 €13.93 Regular price -€3.36 off Price
                                                                                                                                                                  En Stock
                                                                                                                                                                  €10.57 €13.93 Regular price -€3.36 off Price
                                                                                                                                                                  Joint Collecteur Admission Clio 2 RS
                                                                                                                                                                      Ensure vital engine sealing with this genuine Renault intake manifold gasket for the Clio 2 RS (172 and 182hp). This authentic component guarantees a perfect junction between the cylinder head and your manifold, preventing any parasitic air leaks that could degrade the performance of your F4R engine . Do not...
                                                                                                                                                                      €10.57€13.93Regular price-€3.36 offPrice
                                                                                                                                                                      Joint Collecteur Admission Clio 2 RS
                                                                                                                                                                          Ensure vital engine sealing with this genuine Renault intake manifold gasket for the Clio 2 RS (172 and 182hp). This authentic component guarantees a perfect junction between the cylinder head and your manifold, preventing any parasitic air leaks that could degrade the performance of your F4R engine . Do not...
                                                                                                                                                                          €10.57€13.93Regular price-€3.36 offPrice
                                                                                                                                                                          Dispo selon configuration
                                                                                                                                                                          €6.00 Price
                                                                                                                                                                          Dispo selon configuration
                                                                                                                                                                          €6.00 Price
                                                                                                                                                                          Tuyau de dépressionTuyau de dépression
                                                                                                                                                                              Tuyau de depression de diamètre 4mm. Sert généralement pour l'installation de Dump Valve. Prix au metre
                                                                                                                                                                              €6.00Price
                                                                                                                                                                              Tuyau de dépressionTuyau de dépression
                                                                                                                                                                                  Tuyau de depression de diamètre 4mm. Sert généralement pour l'installation de Dump Valve. Prix au metre
                                                                                                                                                                                  €6.00Price
                                                                                                                                                                                  Poulie accessoire filtrante (damper) Twingo RS, R1 et R2Poulie accessoire filtrante (damper) Twingo RS, R1 et R2
                                                                                                                                                                                      Poulie accessoire filtrante Twingo RS, R1 et R2 7711167301
                                                                                                                                                                                      €127.10Price
                                                                                                                                                                                      Poulie accessoire filtrante (damper) Twingo RS, R1 et R2Poulie accessoire filtrante (damper) Twingo RS, R1 et R2
                                                                                                                                                                                          Poulie accessoire filtrante Twingo RS, R1 et R2 7711167301
                                                                                                                                                                                          €127.10Price