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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: Alimentation
  • Categories: Kit Allègement
  • Categories: Préparation intérieure
  • Categories: Suralimentation (Turbo)
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
          En Stock
          €59.00 €69.41 Regular price -15% off Price
          En Stock
          €59.00 €69.41 Regular price -15% off Price
          Fuel Injector Genuine Renault Clio 2 RS / Gr.N / CupFuel Injector Genuine Renault Clio 2 RS / Gr.N / Cup
              Protect your engine's health with this genuine Renault injector specifically designed for the Clio 2 RS . This authentic part features the ITG M60 marking, guaranteeing optimal fuel atomization for high-performance 2.0 16v engines. Brand new and original Renault ...
              €59.00€69.41Regular price-15% offPrice
              Fuel Injector Genuine Renault Clio 2 RS / Gr.N / CupFuel Injector Genuine Renault Clio 2 RS / Gr.N / Cup
                  Protect your engine's health with this genuine Renault injector specifically designed for the Clio 2 RS . This authentic part features the ITG M60 marking, guaranteeing optimal fuel atomization for high-performance 2.0 16v engines. Brand new and original Renault ...
                  €59.00€69.41Regular price-15% offPrice
                  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
                                  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
                                          En Stock
                                          €178.04 Price
                                          En Stock
                                          €178.04 Price
                                          Pompe à Essence Clio 2 RS et X65 Cup
                                              Fuel Gauge/Pump Module Renault Clio 2 RS (Original) Original Renault fuel gauge/pump module for Clio 2 RS Phase 2/3 (without regulator on rail) and Clio 2 X65 Cup. Ensures reliable fuel supply. Discover the compatible fixing ring and gasket at the bottom of the page.
                                              €178.04Price
                                              Pompe à Essence Clio 2 RS et X65 Cup
                                                  Fuel Gauge/Pump Module Renault Clio 2 RS (Original) Original Renault fuel gauge/pump module for Clio 2 RS Phase 2/3 (without regulator on rail) and Clio 2 X65 Cup. Ensures reliable fuel supply. Discover the compatible fixing ring and gasket at the bottom of the page.
                                                  €178.04Price
                                                  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
                                                          Fuel Pump Locking Ring and Seal Kit - Renault Sport Range
                                                              Ensure a leak-free fuel system with this genuine Renault fuel pump locking ring and seal kit . Essential for any intervention on the fuel sender unit, this kit prevents leaks and persistent fuel odors inside your sports vehicle's cabin. Includes the locking nut (ring) and the...
                                                              €55.88Price
                                                              Fuel Pump Locking Ring and Seal Kit - Renault Sport Range
                                                                  Ensure a leak-free fuel system with this genuine Renault fuel pump locking ring and seal kit . Essential for any intervention on the fuel sender unit, this kit prevents leaks and persistent fuel odors inside your sports vehicle's cabin. Includes the locking nut (ring) and the...
                                                                  €55.88Price
                                                                  Raccord Pompe à essence Clio GrN
                                                                      Renault Clio 2 Group N Fuel Pump Connector , a component intended for the fuel supply system of vehicles configured for Group N applications. Vehicle brand: Renault Model: Clio 2 Application: Group N Part type: Fuel pump connector ...
                                                                      €50.45Price
                                                                      Raccord Pompe à essence Clio GrN
                                                                          Renault Clio 2 Group N Fuel Pump Connector , a component intended for the fuel supply system of vehicles configured for Group N applications. Vehicle brand: Renault Model: Clio 2 Application: Group N Part type: Fuel pump connector ...
                                                                          €50.45Price
                                                                          En Stock
                                                                          €720.00 Price
                                                                          En Stock
                                                                          €720.00 Price
                                                                          Echangeur Airtec Megane 3 RSEchangeur Airtec Megane 3 RS
                                                                              Échangeur Airtec spécifique à la Mégane 3 RS. Échangeur de 60 mm se montant en lieu et place sans modifications et équipé d'une tôle permettant de diriger un plus gros flux d'air vers l’échangeur. Disponible en gris
                                                                              €720.00Price
                                                                              Echangeur Airtec Megane 3 RSEchangeur Airtec Megane 3 RS
                                                                                  Échangeur Airtec spécifique à la Mégane 3 RS. Échangeur de 60 mm se montant en lieu et place sans modifications et équipé d'une tôle permettant de diriger un plus gros flux d'air vers l’échangeur. Disponible en gris
                                                                                  €720.00Price
                                                                                  En Stock
                                                                                  €81.58 Price
                                                                                  En Stock
                                                                                  €81.58 Price
                                                                                  Flexible de carburant Té vers rampe Twingo R1 - Clio R3 Max
                                                                                      Do not let a preventable engine failure ruin your race weekend. This high-pressure fuel hose , an authentic Renault Sport component (references 7711160195 / 7711162420 ), is the critical link between the T-connector and the fuel injector rail . Specifically engineered for Twingo R1,...
                                                                                      €81.58Price
                                                                                      Flexible de carburant Té vers rampe Twingo R1 - Clio R3 Max
                                                                                          Do not let a preventable engine failure ruin your race weekend. This high-pressure fuel hose , an authentic Renault Sport component (references 7711160195 / 7711162420 ), is the critical link between the T-connector and the fuel injector rail . Specifically engineered for Twingo R1,...
                                                                                          €81.58Price
                                                                                          Linguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RSLinguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RS
                                                                                              Linguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RSVéritable produit d'origine
                                                                                              €90.76Price
                                                                                              Linguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RSLinguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RS
                                                                                                  Linguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RSVéritable produit d'origine
                                                                                                  €90.76Price
                                                                                                  En Stock
                                                                                                  €130.37 Price
                                                                                                  En Stock
                                                                                                  €130.37 Price
                                                                                                  Capteur pression de suralimentation Megane 3 RS
                                                                                                      Capteur pression de suralimentation Megane 3 RS Véritable produit d'origine
                                                                                                      €130.37Price
                                                                                                      Capteur pression de suralimentation Megane 3 RS
                                                                                                          Capteur pression de suralimentation Megane 3 RS Véritable produit d'origine
                                                                                                          €130.37Price
                                                                                                          Tuyau carburant entre réservoir et coupling Goodridge Megane N4
                                                                                                              Tuyau carburant entre réservoir et coupling Goodridge Megane N4 Référence: 7711167089
                                                                                                              €173.57Price
                                                                                                              Tuyau carburant entre réservoir et coupling Goodridge Megane N4
                                                                                                                  Tuyau carburant entre réservoir et coupling Goodridge Megane N4 Référence: 7711167089
                                                                                                                  €173.57Price
                                                                                                                  En Stock
                                                                                                                  €5.66 Price
                                                                                                                  En Stock
                                                                                                                  €5.66 Price
                                                                                                                  Vis de fixation galet enrouleur de distribution K4MVis de fixation galet enrouleur de distribution K4M
                                                                                                                      Vis de fixation galet enrouleur de distribution K4M 8200581340
                                                                                                                      €5.66Price
                                                                                                                      Vis de fixation galet enrouleur de distribution K4MVis de fixation galet enrouleur de distribution K4M
                                                                                                                          Vis de fixation galet enrouleur de distribution K4M 8200581340
                                                                                                                          €5.66Price
                                                                                                                          En Stock
                                                                                                                          €1.30 Price
                                                                                                                          En Stock
                                                                                                                          €1.30 Price
                                                                                                                          Collier serrage inox (durite) diametre 25-40mm
                                                                                                                              Collier serrage inox (durite) diametre 25-40mm Vendu à l'unité
                                                                                                                              €1.30Price
                                                                                                                              Collier serrage inox (durite) diametre 25-40mm
                                                                                                                                  Collier serrage inox (durite) diametre 25-40mm Vendu à l'unité
                                                                                                                                  €1.30Price
                                                                                                                                  Durite coudée suralimentation (arrivée turbo) Megane 3 RS
                                                                                                                                      Durite coudée suralimentation (arrivée turbo) Megane 3 RS
                                                                                                                                      €45.90Price
                                                                                                                                      Durite coudée suralimentation (arrivée turbo) Megane 3 RS
                                                                                                                                          Durite coudée suralimentation (arrivée turbo) Megane 3 RS
                                                                                                                                          €45.90Price
                                                                                                                                          RENAULT SPORT Assembled Cylinder Head - Renault Twingo R2 EVO 195hpRENAULT SPORT Assembled Cylinder Head - Renault Twingo R2 EVO 195hp
                                                                                                                                              Optimize the performance of your Renault Twingo R2 EVO 195hp with this genuine RENAULT SPORT assembled cylinder head (ref. 7711167644). Supplied with valves, retainers, valve springs, rocker arms, and pushrods, this cylinder head is ready to be installed (camshafts not included). Guaranteed performance and reliability.
                                                                                                                                              €8,104.62Price
                                                                                                                                              RENAULT SPORT Assembled Cylinder Head - Renault Twingo R2 EVO 195hpRENAULT SPORT Assembled Cylinder Head - Renault Twingo R2 EVO 195hp
                                                                                                                                                  Optimize the performance of your Renault Twingo R2 EVO 195hp with this genuine RENAULT SPORT assembled cylinder head (ref. 7711167644). Supplied with valves, retainers, valve springs, rocker arms, and pushrods, this cylinder head is ready to be installed (camshafts not included). Guaranteed performance and reliability.
                                                                                                                                                  €8,104.62Price
                                                                                                                                                  En Stock
                                                                                                                                                  €1.37 Price
                                                                                                                                                  En Stock
                                                                                                                                                  €1.37 Price
                                                                                                                                                  Collier serrage inox (durite) diametre 30-45mm
                                                                                                                                                      Collier serrage inox (durite) diametre 30-45mm Vendu à l'unité
                                                                                                                                                      €1.37Price
                                                                                                                                                      Collier serrage inox (durite) diametre 30-45mm
                                                                                                                                                          Collier serrage inox (durite) diametre 30-45mm Vendu à l'unité
                                                                                                                                                          €1.37Price
                                                                                                                                                          En Stock
                                                                                                                                                          €396.19 Price
                                                                                                                                                          En Stock
                                                                                                                                                          €396.19 Price
                                                                                                                                                          Module jauge pompe Megane 2 RSMegane 2 RS Fuel Gauge/Pump Module - Original
                                                                                                                                                              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
                                                                                                                                                              Module jauge pompe Megane 2 RSMegane 2 RS Fuel Gauge/Pump Module - Original
                                                                                                                                                                  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
                                                                                                                                                                  En Stock
                                                                                                                                                                  €55.68 Price
                                                                                                                                                                  En Stock
                                                                                                                                                                  €55.68 Price
                                                                                                                                                                  Tuyau 200-06 lg:300 connection rampe Tatuus
                                                                                                                                                                      Tuyau 200-06 lg:300 connection rampe Tatuus Réference: 7711155525
                                                                                                                                                                      €55.68Price
                                                                                                                                                                      Tuyau 200-06 lg:300 connection rampe Tatuus
                                                                                                                                                                          Tuyau 200-06 lg:300 connection rampe Tatuus Réference: 7711155525
                                                                                                                                                                          €55.68Price
                                                                                                                                                                          Sonde pression Twingo R2New Genuine Renault Sport Oil Pressure Sensor - Clio R3 & Twingo R2
                                                                                                                                                                              This new oil pressure sensor , from the Renault Sport competition catalog , is a vital safety part for the rally engines of the Renault Clio R3 and Twingo R2 . It is essential for monitoring lubrication and thereby preventing catastrophic engine failures caused by a lack or drop in oil pressure.
                                                                                                                                                                              €195.78Price
                                                                                                                                                                              Sonde pression Twingo R2New Genuine Renault Sport Oil Pressure Sensor - Clio R3 & Twingo R2
                                                                                                                                                                                  This new oil pressure sensor , from the Renault Sport competition catalog , is a vital safety part for the rally engines of the Renault Clio R3 and Twingo R2 . It is essential for monitoring lubrication and thereby preventing catastrophic engine failures caused by a lack or drop in oil pressure.
                                                                                                                                                                                  €195.78Price
                                                                                                                                                                                  Joint de Culasse Clio 3 RS y compris Clio R3 et X85 Cup
                                                                                                                                                                                      Joint de Culasse Clio 3 RS y compris Clio R3 et X85 Cup Véritable produit d'origine
                                                                                                                                                                                      €89.65Price
                                                                                                                                                                                      Joint de Culasse Clio 3 RS y compris Clio R3 et X85 Cup
                                                                                                                                                                                          Joint de Culasse Clio 3 RS y compris Clio R3 et X85 Cup Véritable produit d'origine
                                                                                                                                                                                          €89.65Price