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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: Allumage
  • Categories: Préparation intérieure
  • Categories: Refroidissement
  • Categories: Suralimentation (Turbo)
En Stock
€133.39 Price
En Stock
€133.39 Price
Joint de Culasse Cometic Clio 16S /WilliamsJoint de Culasse Cometic Clio 16S /Williams
      Joint de culasse Cometic. Haute résistance. Alesage 83 mm , Epaisseur 0.76 Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. Nous contacter pour connaitre les épaisseurs possibles D'autres alesages et épaisseur disponibles, nous contacter.
      €133.39Price
      Joint de Culasse Cometic Clio 16S /WilliamsJoint de Culasse Cometic Clio 16S /Williams
          Joint de culasse Cometic. Haute résistance. Alesage 83 mm , Epaisseur 0.76 Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. Nous contacter pour connaitre les épaisseurs possibles D'autres alesages et épaisseur disponibles, nous contacter.
          €133.39Price
          Reinforced silicone intercooler boost hose kit Forge Motorsport FMKTRC for Renault Clio 4 RS. black
              Prevent boost pressure leaks and protect your intake system with the premium Forge Motorsport Silicon Turbo Hose Kit FMKTRC for Clio 4 RS . Manufactured from high-tensile, multi-layer reinforced silicone, this kit directly replaces factory rubber lines that are prone to...
              €230.39Price
              Reinforced silicone intercooler boost hose kit Forge Motorsport FMKTRC for Renault Clio 4 RS. black
                  Prevent boost pressure leaks and protect your intake system with the premium Forge Motorsport Silicon Turbo Hose Kit FMKTRC for Clio 4 RS . Manufactured from high-tensile, multi-layer reinforced silicone, this kit directly replaces factory rubber lines that are prone to...
                  €230.39Price
                  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
                          Dispo selon configuration
                          €169.00 €209.02 Regular price -€40.02 off Price
                          Dispo selon configuration
                          €169.00 €209.02 Regular price -€40.02 off Price
                          COLD SIDE Clio 4 RS (conduit d'air renforcé)Uprated Cold Side Boost Pipe Kit - Renault Clio 4 RS
                            • Pack
                            Protect your turbocharging system against pressure drops with the high-performance Cold Side Kit for the Renault Clio 4 RS (Uprated Air Guide Pipe) . This reinforced intake hose replaces the fragile factory plastic pipe that is prone to cracking, optimizing cold airflow...
                            €169.00€209.02Regular price-€40.02 offPrice
                            COLD SIDE Clio 4 RS (conduit d'air renforcé)Uprated Cold Side Boost Pipe Kit - Renault Clio 4 RS
                              • Pack
                              Protect your turbocharging system against pressure drops with the high-performance Cold Side Kit for the Renault Clio 4 RS (Uprated Air Guide Pipe) . This reinforced intake hose replaces the fragile factory plastic pipe that is prone to cracking, optimizing cold airflow...
                              €169.00€209.02Regular price-€40.02 offPrice
                              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
                                      Durite Forge Admission Megane 2 RSForge Silicone Intake Hose Megane 2 RS
                                          Forge Motorsport Silicone Intake Hose for Renault Megane 2 RS Optimize the airflow to your Renault Megane 2 RS engine with this high-quality silicone intake hose from Forge Motorsport (ref: FMRMBHS). Available in several colors. Connects to the throttle body. Discover associated products at the bottom of the page.
                                          €44.99Price
                                          Durite Forge Admission Megane 2 RSForge Silicone Intake Hose Megane 2 RS
                                              Forge Motorsport Silicone Intake Hose for Renault Megane 2 RS Optimize the airflow to your Renault Megane 2 RS engine with this high-quality silicone intake hose from Forge Motorsport (ref: FMRMBHS). Available in several colors. Connects to the throttle body. Discover associated products at the bottom of the page.
                                              €44.99Price
                                              Fixations Forge Capteur Sur RadiateurFORGE MOTORSPORT FMRCLMP Sensor Securing Kit - Megane 2 RS
                                                  Secure the sensors of your Megane 2 RS with the FORGE MOTORSPORT FMRCLMP kit. Composed of 2 reinforcements, it ensures optimal support for the depression hose and pressure sensor. Avoid performance losses and reliability issues.
                                                  €36.80Price
                                                  Fixations Forge Capteur Sur RadiateurFORGE MOTORSPORT FMRCLMP Sensor Securing Kit - Megane 2 RS
                                                      Secure the sensors of your Megane 2 RS with the FORGE MOTORSPORT FMRCLMP kit. Composed of 2 reinforcements, it ensures optimal support for the depression hose and pressure sensor. Avoid performance losses and reliability issues.
                                                      €36.80Price
                                                      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
                                                              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
                                                                      En Stock
                                                                      €133.31 Price
                                                                      En Stock
                                                                      €133.31 Price
                                                                      Joint de Culasse renforcé CometicJoint de Culasse renforcé Cometic
                                                                          Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 0.75mm 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.
                                                                          €133.31Price
                                                                          Joint de Culasse renforcé CometicJoint de Culasse renforcé Cometic
                                                                              Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 0.75mm 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.
                                                                              €133.31Price
                                                                              En Stock
                                                                              €47.34 Price
                                                                              En Stock
                                                                              €47.34 Price
                                                                              Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2
                                                                                  Genuine Renault Exhaust Valve - Twingo 2 RS, Twingo R1, Twingo R2 160hp Authentic Renault exhaust valve, ensuring optimal sealing and performance. Specific replacement part for Renault Twingo 2 RS, Twingo R1, and Twingo R2 160hp models. Contributes to proper engine operation and efficient exhaust gas...
                                                                                  €47.34Price
                                                                                  Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2
                                                                                      Genuine Renault Exhaust Valve - Twingo 2 RS, Twingo R1, Twingo R2 160hp Authentic Renault exhaust valve, ensuring optimal sealing and performance. Specific replacement part for Renault Twingo 2 RS, Twingo R1, and Twingo R2 160hp models. Contributes to proper engine operation and efficient exhaust gas...
                                                                                      €47.34Price
                                                                                      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
                                                                                              €50.21 €83.68 Regular price -40% off Price
                                                                                              En Stock
                                                                                              €50.21 €83.68 Regular price -40% off Price
                                                                                              Bobine D'allumage
                                                                                                  Optimize your engine's combustion cycle with this genuine Renault ignition coil . Sold individually, it is the essential choice for Renault Megane 2 RS , Clio 3 RS , Megane 3 RS , and Twingo 2 RS owners looking to maintain optimal ignition performance. Certified...
                                                                                                  €50.21€83.68Regular price-40% offPrice
                                                                                                  Bobine D'allumage
                                                                                                      Optimize your engine's combustion cycle with this genuine Renault ignition coil . Sold individually, it is the essential choice for Renault Megane 2 RS , Clio 3 RS , Megane 3 RS , and Twingo 2 RS owners looking to maintain optimal ignition performance. Certified...
                                                                                                      €50.21€83.68Regular price-40% offPrice
                                                                                                      En Stock
                                                                                                      €150.77 Price
                                                                                                      En Stock
                                                                                                      €150.77 Price
                                                                                                      Bride de turbo Megane N4
                                                                                                          Official Renault Megane N4 Rally Turbo Flange (Ref: 7711167131) : Original part, guaranteeing performance and reliability for your Renault Megane 3 RS prepared for competition. Don't let an unsuitable flange compromise your turbo's potential. Discover related products, including the O-ring, at the bottom of this page.
                                                                                                          €150.77Price
                                                                                                          Bride de turbo Megane N4
                                                                                                              Official Renault Megane N4 Rally Turbo Flange (Ref: 7711167131) : Original part, guaranteeing performance and reliability for your Renault Megane 3 RS prepared for competition. Don't let an unsuitable flange compromise your turbo's potential. Discover related products, including the O-ring, at the bottom of this page.
                                                                                                              €150.77Price
                                                                                                              Vis de bielle origine
                                                                                                                  Secure your performance engine's bottom end with this genuine RENAULT connecting rod bolt , sold individually. Engineered to withstand high RPMs, it is essential for the maintenance and personalization of Clio 2 RS , Clio 3 RS , Megane 2/3 RS , and Clio Williams ...
                                                                                                                  €8.56Price
                                                                                                                  Vis de bielle origine
                                                                                                                      Secure your performance engine's bottom end with this genuine RENAULT connecting rod bolt , sold individually. Engineered to withstand high RPMs, it is essential for the maintenance and personalization of Clio 2 RS , Clio 3 RS , Megane 2/3 RS , and Clio Williams ...
                                                                                                                      €8.56Price
                                                                                                                      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
                                                                                                                              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
                                                                                                                                      Durite Silicone liaison conduit air turbo Megane 2 RS pour tubulure FORGEDurite Silicone liaison conduit air turbo Megane 2 RS pour tubulure FORGE
                                                                                                                                          Durite Silicone liaison conduit air turbo Megane 2 RS Durite visible sur le dessus du moteur
                                                                                                                                          €14.22Price
                                                                                                                                          Durite Silicone liaison conduit air turbo Megane 2 RS pour tubulure FORGEDurite Silicone liaison conduit air turbo Megane 2 RS pour tubulure FORGE
                                                                                                                                              Durite Silicone liaison conduit air turbo Megane 2 RS Durite visible sur le dessus du moteur
                                                                                                                                              €14.22Price
                                                                                                                                              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
                                                                                                                                                      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
                                                                                                                                                              Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65
                                                                                                                                                                  Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65 Référence : 7711065381
                                                                                                                                                                  €0.23Price
                                                                                                                                                                  Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65
                                                                                                                                                                      Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65 Référence : 7711065381
                                                                                                                                                                      €0.23Price
                                                                                                                                                                      En Stock
                                                                                                                                                                      €36.01 Price
                                                                                                                                                                      En Stock
                                                                                                                                                                      €36.01 Price
                                                                                                                                                                      Kit ressorts Dump Valve Forge
                                                                                                                                                                          Kit comprenant plusieurs ressorts pour ajuster vos Dump Valve Ne convient pas pour les références de dump suivantes : FMDVFSIT, FMDVFSITVR et FMDVK04D Kit permettant l'optimisation de votre Dump afin de l'ajuster à vos autres modifications (préparation). Il est composé de 4 ressorts de remplacement. Couleurs des ressorts et pressions correspondantes: Vert 0,3 à 1,03 Bar Jaune 1.03 à 1,53 Bar...
                                                                                                                                                                          €36.01Price
                                                                                                                                                                          Kit ressorts Dump Valve Forge
                                                                                                                                                                              Kit comprenant plusieurs ressorts pour ajuster vos Dump Valve Ne convient pas pour les références de dump suivantes : FMDVFSIT, FMDVFSITVR et FMDVK04D Kit permettant l'optimisation de votre Dump afin de l'ajuster à vos autres modifications (préparation). Il est composé de 4 ressorts de remplacement. Couleurs des ressorts et pressions correspondantes: Vert 0,3 à 1,03 Bar Jaune 1.03 à 1,53 Bar...
                                                                                                                                                                              €36.01Price