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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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  • Categories: Circuit d'eau
  • Categories: Préparation intérieure
  • Categories: Refroidissement
  • Categories: Support moteur
En Stock
€126.80 €181.14 Regular price -30% off Price
En Stock
€126.80 €181.14 Regular price -30% off Price
GMV (Ventilateur) type chauffo Twingo RS et R1
      GMV (Ventilateur) type chauffo Twingo RS et R1 Référence: 7711162740 - 8200066098 Egalement compatible avec d'autres motorisations
      €126.80€181.14Regular price-30% offPrice
      GMV (Ventilateur) type chauffo Twingo RS et R1
          GMV (Ventilateur) type chauffo Twingo RS et R1 Référence: 7711162740 - 8200066098 Egalement compatible avec d'autres motorisations
          €126.80€181.14Regular price-30% offPrice
          En Stock
          €343.21 Price
          En Stock
          €343.21 Price
          Modine (échangeur eau huile) Clio 16S et Williams
              Modine (echangeur eau huile) Clio 16S et Williams
              €343.21Price
              Modine (échangeur eau huile) Clio 16S et Williams
                  Modine (echangeur eau huile) Clio 16S et Williams
                  €343.21Price
                  En Stock
                  €178.20 Price
                  En Stock
                  €178.20 Price
                  Plaque reniflard Clio 2 RS 172
                      Plaque de reniflard taillé massé venant en lieu et place de la plaque d'origine Ajout un raccord Dash permettant de venir connecter directement un recuperateur de vapeur d'huile. Cette piece est un serieux atout pour les véhicules ayant modifié le collecteur d'admission d'origine. Produit a completer avec un joint Loctite 5980.
                      €178.20Price
                      Plaque reniflard Clio 2 RS 172
                          Plaque de reniflard taillé massé venant en lieu et place de la plaque d'origine Ajout un raccord Dash permettant de venir connecter directement un recuperateur de vapeur d'huile. Cette piece est un serieux atout pour les véhicules ayant modifié le collecteur d'admission d'origine. Produit a completer avec un joint Loctite 5980.
                          €178.20Price
                          En Stock
                          €11.53 Price
                          En Stock
                          €11.53 Price
                          Demi coussinet rainurés jaune vilebrequin K4M 854Demi coussinet rainurés jaune vilebrequin K4M 854
                              Demi coussinet rainurés jaune vilebrequin K4M 854
                              €11.53Price
                              Demi coussinet rainurés jaune vilebrequin K4M 854Demi coussinet rainurés jaune vilebrequin K4M 854
                                  Demi coussinet rainurés jaune vilebrequin K4M 854
                                  €11.53Price
                                  En Stock
                                  €202.54 Price
                                  En Stock
                                  €202.54 Price
                                  Ecope supérieure de radiateur Clio R3 "MAXI"
                                      Ecope supérieure de radiateur Clio R3 "MAXI" Ref: 7711160688
                                      €202.54Price
                                      Ecope supérieure de radiateur Clio R3 "MAXI"
                                          Ecope supérieure de radiateur Clio R3 "MAXI" Ref: 7711160688
                                          €202.54Price
                                          Electrovanne décalage arbre à cames (dephasage) Clio 3 RS phase 2 et Cup X85 et Megane 3 RS
                                              Camshaft Phasing Solenoid Valve : genuine RENAULT part essential for the proper function and engine performance of your Renault Clio 3 RS Phase 2 and Renault Megane 3 RS . A faulty component leads to power loss and unstable idling. Ensures optimal...
                                              €202.56Price
                                              Electrovanne décalage arbre à cames (dephasage) Clio 3 RS phase 2 et Cup X85 et Megane 3 RS
                                                  Camshaft Phasing Solenoid Valve : genuine RENAULT part essential for the proper function and engine performance of your Renault Clio 3 RS Phase 2 and Renault Megane 3 RS . A faulty component leads to power loss and unstable idling. Ensures optimal...
                                                  €202.56Price
                                                  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
                                                          €211.80 Price
                                                          En Stock
                                                          €211.80 Price
                                                          Pompe à huileRenault Sport Oil Pump - Clio 2/3 RS & Megane 2/3 RS
                                                              Secure your engine block's lubrication with this high-performance oil pump for Renault 2.0L engines. Essential for maintaining constant oil pressure, it is compatible with Clio 2 RS , Clio 3 RS , as well as X65 Cup ,...
                                                              €211.80Price
                                                              Pompe à huileRenault Sport Oil Pump - Clio 2/3 RS & Megane 2/3 RS
                                                                  Secure your engine block's lubrication with this high-performance oil pump for Renault 2.0L engines. Essential for maintaining constant oil pressure, it is compatible with Clio 2 RS , Clio 3 RS , as well as X65 Cup ,...
                                                                  €211.80Price
                                                                  Collection de 48 grains de réglage soupapes Twingo R2 195-205
                                                                      Collection de 48 grains de réglage soupapes Twingo R2 195-205 7711167645
                                                                      €831.29Price
                                                                      Collection de 48 grains de réglage soupapes Twingo R2 195-205
                                                                          Collection de 48 grains de réglage soupapes Twingo R2 195-205 7711167645
                                                                          €831.29Price
                                                                          En Stock
                                                                          €221.33 Price
                                                                          En Stock
                                                                          €221.33 Price
                                                                          Radiator Outlet Water Hose Renault Megane 3 RSRadiator Outlet Water Hose Renault Megane 3 RS
                                                                              Genuine Renault Radiator Outlet Water Hose for Renault Megane 3 RS. Essential part for optimal engine cooling. Renault quality and reliability.
                                                                              €221.33Price
                                                                              Radiator Outlet Water Hose Renault Megane 3 RSRadiator Outlet Water Hose Renault Megane 3 RS
                                                                                  Genuine Renault Radiator Outlet Water Hose for Renault Megane 3 RS. Essential part for optimal engine cooling. Renault quality and reliability.
                                                                                  €221.33Price
                                                                                  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
                                                                                          €3.16 Price
                                                                                          En Stock
                                                                                          €3.16 Price
                                                                                          Clip maintien support linguet Twingo R2 195/205
                                                                                              Clip maintien support linguet Twingo R2 195/205 Référence: 7711167614
                                                                                              €3.16Price
                                                                                              Clip maintien support linguet Twingo R2 195/205
                                                                                                  Clip maintien support linguet Twingo R2 195/205 Référence: 7711167614
                                                                                                  €3.16Price
                                                                                                  En Stock
                                                                                                  €70.25 Price
                                                                                                  En Stock
                                                                                                  €70.25 Price
                                                                                                  Blue Crankshaft Half-Bearing Set
                                                                                                      Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                                                                                                      €70.25Price
                                                                                                      Blue Crankshaft Half-Bearing Set
                                                                                                          Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                                                                                                          €70.25Price
                                                                                                          Kit Complet Durites D'eau Clio 3 RSKit Complet Durites D'eau Clio 3 RS
                                                                                                              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
                                                                                                              Kit Complet Durites D'eau Clio 3 RSKit Complet Durites D'eau Clio 3 RS
                                                                                                                  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
                                                                                                                  En Stock
                                                                                                                  €66.48 Price
                                                                                                                  En Stock
                                                                                                                  €66.48 Price
                                                                                                                  Coussinets de Vilebrequin Trimetal ergotés ACLCoussinets de Vilebrequin Trimetal ergotés ACL
                                                                                                                      Coussinet de vilebrequin trimetal Coussinets pour F7P, F7R, F4R, F4R soit pour Clio 16S, Williams, clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS Présence d'ergots.
                                                                                                                      €66.48Price
                                                                                                                      Coussinets de Vilebrequin Trimetal ergotés ACLCoussinets de Vilebrequin Trimetal ergotés ACL
                                                                                                                          Coussinet de vilebrequin trimetal Coussinets pour F7P, F7R, F4R, F4R soit pour Clio 16S, Williams, clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS Présence d'ergots.
                                                                                                                          €66.48Price
                                                                                                                          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
                                                                                                                                  €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
                                                                                                                                          €1,326.07 Price
                                                                                                                                          En Stock
                                                                                                                                          €1,326.07 Price
                                                                                                                                          AAC Admission loi 286TR2A2 Twingo R2 205
                                                                                                                                              AAC Admission loi 286TR2A2 Twingo R2 205 Référence: 7711167674
                                                                                                                                              €1,326.07Price
                                                                                                                                              AAC Admission loi 286TR2A2 Twingo R2 205
                                                                                                                                                  AAC Admission loi 286TR2A2 Twingo R2 205 Référence: 7711167674
                                                                                                                                                  €1,326.07Price
                                                                                                                                                  Joint spy Vilebrequin côté distribution R21 turboRenault Crankshaft Oil Seal, Timing Side - Formula Renault / Renault 21 2L Turbo
                                                                                                                                                      Renault Crankshaft Oil Seal, Timing Side - Formula Renault / R21 2L Turbo Ensure your engine's sealing with this original Renault crankshaft oil seal. Designed for Formula Renault and Renault 21 2L Turbo, it prevents oil leaks and guarantees your engine's longevity. Original Renault Part Crankshaft oil seal, timing side ...
                                                                                                                                                      €20.87Price
                                                                                                                                                      Joint spy Vilebrequin côté distribution R21 turboRenault Crankshaft Oil Seal, Timing Side - Formula Renault / Renault 21 2L Turbo
                                                                                                                                                          Renault Crankshaft Oil Seal, Timing Side - Formula Renault / R21 2L Turbo Ensure your engine's sealing with this original Renault crankshaft oil seal. Designed for Formula Renault and Renault 21 2L Turbo, it prevents oil leaks and guarantees your engine's longevity. Original Renault Part Crankshaft oil seal, timing side ...
                                                                                                                                                          €20.87Price
                                                                                                                                                          Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                                                                                                                                              Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                                                                                                                                              €14.95Price
                                                                                                                                                              Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                                                                                                                                                  Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                                                                                                                                                  €14.95Price
                                                                                                                                                                  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
                                                                                                                                                                          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
                                                                                                                                                                                  Vis Fixation Volant Moteur
                                                                                                                                                                                      Secure the transmission of power from your crankshaft to your clutch assembly with this heavy-duty Flywheel Fixing Bolt for the Renault Clio 16S, Williams, Clio 2 RS, and Clio 3 RS . This high-tensile specialist hardware is critical to enduring harsh rev matches and the...
                                                                                                                                                                                      €5.64Price
                                                                                                                                                                                      Vis Fixation Volant Moteur
                                                                                                                                                                                          Secure the transmission of power from your crankshaft to your clutch assembly with this heavy-duty Flywheel Fixing Bolt for the Renault Clio 16S, Williams, Clio 2 RS, and Clio 3 RS . This high-tensile specialist hardware is critical to enduring harsh rev matches and the...
                                                                                                                                                                                          €5.64Price
                                                                                                                                                                                          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
                                                                                                                                                                                                  €198.25 Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €198.25 Price
                                                                                                                                                                                                  Kit Joint Refection moteur Origine Clio 3 RS
                                                                                                                                                                                                      Ensemble de joints nécéssaire au bon remontage du moteur de Clio 3 RS Véritable produit d'origine
                                                                                                                                                                                                      €198.25Price
                                                                                                                                                                                                      Kit Joint Refection moteur Origine Clio 3 RS
                                                                                                                                                                                                          Ensemble de joints nécéssaire au bon remontage du moteur de Clio 3 RS Véritable produit d'origine
                                                                                                                                                                                                          €198.25Price
                                                                                                                                                                                                          Bouchon Vase Expansion 1.4 BarGenuine Renault Expansion Tank Cap 1.4 Bar - Super 5 GT Turbo / Clio 16S / Williams / R21 Turbo
                                                                                                                                                                                                              Safeguard your cooling system with this genuine Renault expansion tank cap rated at 1.4 Bar . Specifically engineered for legendary performance models such as the Renault Super 5 GT Turbo , Clio Williams , and R21 2L Turbo , it ensures optimal pressure regulation to prevent engine overheating. A vital precision...
                                                                                                                                                                                                              €28.78Price
                                                                                                                                                                                                              Bouchon Vase Expansion 1.4 BarGenuine Renault Expansion Tank Cap 1.4 Bar - Super 5 GT Turbo / Clio 16S / Williams / R21 Turbo
                                                                                                                                                                                                                  Safeguard your cooling system with this genuine Renault expansion tank cap rated at 1.4 Bar . Specifically engineered for legendary performance models such as the Renault Super 5 GT Turbo , Clio Williams , and R21 2L Turbo , it ensures optimal pressure regulation to prevent engine overheating. A vital precision...
                                                                                                                                                                                                                  €28.78Price