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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: Allumage
Joint cuivre de banjo d'alimentation de rampe Twingo R1 et R2
      Joint cuivre de banjo d'alimentation de rampe Twingo R1 et R2 Référence: 7711050937
      €3.04Price
      Joint cuivre de banjo d'alimentation de rampe Twingo R1 et R2
          Joint cuivre de banjo d'alimentation de rampe Twingo R1 et R2 Référence: 7711050937
          €3.04Price
          En Stock
          €211.24 Price
          En Stock
          €211.24 Price
          Cablage Volant ALS Megane N4
              Optimize the management of your anti-lag system with the Genuine Renault Sport Steering Wheel ALS Wiring Harness (Part Number 7711167187) . Specifically engineered for the rally-spec Megane N4 , this motorsport-grade electrical loom ensures a shielded,...
              €211.24Price
              Cablage Volant ALS Megane N4
                  Optimize the management of your anti-lag system with the Genuine Renault Sport Steering Wheel ALS Wiring Harness (Part Number 7711167187) . Specifically engineered for the rally-spec Megane N4 , this motorsport-grade electrical loom ensures a shielded,...
                  €211.24Price
                  En Stock
                  €15.49 Price
                  En Stock
                  €15.49 Price
                  bague étanchéité bobine crayon
                      The Renault ignition coil seal (gasket) is an original part designed to ensure perfect sealing and optimal performance of the ignition system on Renault Twingo 2 RS, Renault Clio 3 RS, Renault Clio R3, Renault Clio 3 X85 Cup, Renault Megane 2 RS, Renault Megane 3 RS, and Renault Megane N4 models.
                      €15.49Price
                      bague étanchéité bobine crayon
                          The Renault ignition coil seal (gasket) is an original part designed to ensure perfect sealing and optimal performance of the ignition system on Renault Twingo 2 RS, Renault Clio 3 RS, Renault Clio R3, Renault Clio 3 X85 Cup, Renault Megane 2 RS, Renault Megane 3 RS, and Renault Megane N4 models.
                          €15.49Price
                          En Stock
                          €402.96 Price
                          En Stock
                          €402.96 Price
                          Convergent boitier filtre assemblé Twingo R2 195cvConvergent boitier filtre assemblé Twingo R2 195cv
                              Convergent boitier filtre assemblé Twingo R2 195cv
                              €402.96Price
                              Convergent boitier filtre assemblé Twingo R2 195cvConvergent boitier filtre assemblé Twingo R2 195cv
                                  Convergent boitier filtre assemblé Twingo R2 195cv
                                  €402.96Price
                                  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
                                          Banjo alimentation rampe essence Twingo R1 et R2 et Clio R3
                                              Banjo alimentation rampe essence Twingo R1 et R2 et Clio R3 Référence: 7711160198
                                              €57.72Price
                                              Banjo alimentation rampe essence Twingo R1 et R2 et Clio R3
                                                  Banjo alimentation rampe essence Twingo R1 et R2 et Clio R3 Référence: 7711160198
                                                  €57.72Price
                                                  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
                                                          €546.20 Price
                                                          En Stock
                                                          €546.20 Price
                                                          Alternateur Clio 3 RS y compris X85 Cup et R3
                                                              Ensure reliable electrical power for your Renault Clio 3 RS , Renault Clio R3 , or Renault Clio 3 X85 Cup with this genuine RENAULT alternator . An essential component for the proper functioning of your sports vehicle. Find associated complementary products at the bottom of the page for optimal...
                                                              €546.20Price
                                                              Alternateur Clio 3 RS y compris X85 Cup et R3
                                                                  Ensure reliable electrical power for your Renault Clio 3 RS , Renault Clio R3 , or Renault Clio 3 X85 Cup with this genuine RENAULT alternator . An essential component for the proper functioning of your sports vehicle. Find associated complementary products at the bottom of the page for optimal...
                                                                  €546.20Price
                                                                  En Stock
                                                                  €25.69 Price
                                                                  En Stock
                                                                  €25.69 Price
                                                                  Vis Banjo alimentation rampe Twingo R1 et R2
                                                                      Vis Banjo alimentation rampe Twingo R1 et R2 Référence: 7711129199
                                                                      €25.69Price
                                                                      Vis Banjo alimentation rampe Twingo R1 et R2
                                                                          Vis Banjo alimentation rampe Twingo R1 et R2 Référence: 7711129199
                                                                          €25.69Price
                                                                          Interrupteur coup de poing Megane N4
                                                                              Take zero risks on the track or in competition with this genuine Renault Sport emergency kill switch . An essential component of the electrical system for the Renault Megane N4 and Renault Twingo R2 , this emergency cutoff switch immediately cuts off power in the event of an incident to prevent electrical...
                                                                              €20.30Price
                                                                              Interrupteur coup de poing Megane N4
                                                                                  Take zero risks on the track or in competition with this genuine Renault Sport emergency kill switch . An essential component of the electrical system for the Renault Megane N4 and Renault Twingo R2 , this emergency cutoff switch immediately cuts off power in the event of an incident to prevent electrical...
                                                                                  €20.30Price
                                                                                  Tuyau carburant entre coupling Goodridge et rampe Megane N4
                                                                                      Tuyau carburant entre coupling Goodridge et rampe Megane N4 Référence: 7711167090
                                                                                      €146.16Price
                                                                                      Tuyau carburant entre coupling Goodridge et rampe Megane N4
                                                                                          Tuyau carburant entre coupling Goodridge et rampe Megane N4 Référence: 7711167090
                                                                                          €146.16Price
                                                                                          En Stock
                                                                                          €69.56 Price
                                                                                          En Stock
                                                                                          €69.56 Price
                                                                                          Flexible à carburant Té / rampe Clio 3 Cup
                                                                                              Do not risk a fuel system failure mid-session. The Goodridge Tee to fuel rail hose is crucial for the reliability of your Clio 3 x85 Cup . Keeping a worn or inadequate hose directly exposes your engine to critical fuel starvation or severe leak risks. Permanently secure your injection system with this high-precision...
                                                                                              €69.56Price
                                                                                              Flexible à carburant Té / rampe Clio 3 Cup
                                                                                                  Do not risk a fuel system failure mid-session. The Goodridge Tee to fuel rail hose is crucial for the reliability of your Clio 3 x85 Cup . Keeping a worn or inadequate hose directly exposes your engine to critical fuel starvation or severe leak risks. Permanently secure your injection system with this high-precision...
                                                                                                  €69.56Price
                                                                                                  En Stock
                                                                                                  €12.78 Price
                                                                                                  En Stock
                                                                                                  €12.78 Price
                                                                                                  Tuyau essence vapeur canister Ø8 Megane N4Tuyau essence vapeur canister Ø8 Megane N4
                                                                                                      Tuyau essence vapeur canister Ø8 Megane N4 Référence: 7711167251
                                                                                                      €12.78Price
                                                                                                      Tuyau essence vapeur canister Ø8 Megane N4Tuyau essence vapeur canister Ø8 Megane N4
                                                                                                          Tuyau essence vapeur canister Ø8 Megane N4 Référence: 7711167251
                                                                                                          €12.78Price
                                                                                                          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
                                                                                                                  En Stock
                                                                                                                  €34.73 €53.42 Regular price -35% off Price
                                                                                                                  En Stock
                                                                                                                  €34.73 €53.42 Regular price -35% off Price
                                                                                                                  Bougie origine
                                                                                                                      The genuine RENAULT Spark Plug , sold individually and an original manufacturer part, is essential for maintaining optimal performance in your Renault Megane 4 RS or Alpine A110 . Ensure perfect ignition and efficient combustion by choosing RENAULT quality.
                                                                                                                      €34.73€53.42Regular price-35% offPrice
                                                                                                                      Bougie origine
                                                                                                                          The genuine RENAULT Spark Plug , sold individually and an original manufacturer part, is essential for maintaining optimal performance in your Renault Megane 4 RS or Alpine A110 . Ensure perfect ignition and efficient combustion by choosing RENAULT quality.
                                                                                                                          €34.73€53.42Regular price-35% offPrice
                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                          €407.03 Price
                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                          €407.03 Price
                                                                                                                          New Genuine Renault Starter Motor - Clio 4 RS (All Phases)
                                                                                                                              Ensure an instantaneous start for your Renault Clio 4 RS (all phases) with this brand-new genuine Renault starter motor . Unlike remanufactured units, this 100% new product guarantees maximum reliability and increased longevity for your 1.6 Turbo engine. Don't risk an immobilizing breakdown—choose manufacturer...
                                                                                                                              €407.03Price
                                                                                                                              New Genuine Renault Starter Motor - Clio 4 RS (All Phases)
                                                                                                                                  Ensure an instantaneous start for your Renault Clio 4 RS (all phases) with this brand-new genuine Renault starter motor . Unlike remanufactured units, this 100% new product guarantees maximum reliability and increased longevity for your 1.6 Turbo engine. Don't risk an immobilizing breakdown—choose manufacturer...
                                                                                                                                  €407.03Price
                                                                                                                                  Sur commande ou en cours de réappro
                                                                                                                                  €77.12 Price
                                                                                                                                  Sur commande ou en cours de réappro
                                                                                                                                  €77.12 Price
                                                                                                                                  Power Distribution Box & Starter Fuse Renault Megane 3 RSPower Distribution Box & Starter Fuse Renault Megane 3 RS
                                                                                                                                      Do not let a minor electrical failure lead to a major breakdown. This genuine Renault power distribution box is a critical component of your Renault Megane 3 RS starting circuit. Integrating essential high-power fuses , specifically for the starter motor and alternator protection, it ensures secure energy management from your...
                                                                                                                                      €77.12Price
                                                                                                                                      Power Distribution Box & Starter Fuse Renault Megane 3 RSPower Distribution Box & Starter Fuse Renault Megane 3 RS
                                                                                                                                          Do not let a minor electrical failure lead to a major breakdown. This genuine Renault power distribution box is a critical component of your Renault Megane 3 RS starting circuit. Integrating essential high-power fuses , specifically for the starter motor and alternator protection, it ensures secure energy management from your...
                                                                                                                                          €77.12Price
                                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                                          €188.74 Price
                                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                                          €188.74 Price
                                                                                                                                          Jauge pompe Clio 2 RS 1
                                                                                                                                              Jauge pompe Clio 2 RS 1 Modele spécifique ayant le régulateur sur la pompe
                                                                                                                                              €188.74Price
                                                                                                                                              Jauge pompe Clio 2 RS 1
                                                                                                                                                  Jauge pompe Clio 2 RS 1 Modele spécifique ayant le régulateur sur la pompe
                                                                                                                                                  €188.74Price
                                                                                                                                                  Sur commande ou en cours de réappro
                                                                                                                                                  €272.90 Price
                                                                                                                                                  Sur commande ou en cours de réappro
                                                                                                                                                  €272.90 Price
                                                                                                                                                  Sur commande ou en cours de réappro
                                                                                                                                                  €24.00 Price
                                                                                                                                                  Sur commande ou en cours de réappro
                                                                                                                                                  €24.00 Price
                                                                                                                                                      Tuyau nitrile GOODRIDGE DASH 6 (le m) Le...
                                                                                                                                                      €24.00Price
                                                                                                                                                          Tuyau nitrile GOODRIDGE DASH 6 (le m) Le...
                                                                                                                                                          €24.00Price
                                                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                                                          €265.07 Price
                                                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                                                          €265.07 Price
                                                                                                                                                          • New
                                                                                                                                                            Don't risk damaging your sports car engine or suffering from increased fuel consumption. The genuine RENAULT front upstream oxygen lambda sensor for Clio 4 RS guarantees absolute air/fuel mixture accuracy, preserving optimal performance and the 1.6 Turbo engine of your vehicle. Genuine RENAULT OEM part :...
                                                                                                                                                            €265.07Price
                                                                                                                                                            • New
                                                                                                                                                              Don't risk damaging your sports car engine or suffering from increased fuel consumption. The genuine RENAULT front upstream oxygen lambda sensor for Clio 4 RS guarantees absolute air/fuel mixture accuracy, preserving optimal performance and the 1.6 Turbo engine of your vehicle. Genuine RENAULT OEM part :...
                                                                                                                                                              €265.07Price
                                                                                                                                                              Sur commande ou en cours de réappro
                                                                                                                                                              €160.52 Price
                                                                                                                                                              Sur commande ou en cours de réappro
                                                                                                                                                              €160.52 Price
                                                                                                                                                              Flexible à carburant Réservoir / Té Clio 3 CupFlexible à carburant Réservoir / Té Clio 3 Cup
                                                                                                                                                                  Flexible à carburant Réservoir / Té Clio 3 Cup Référence: 7711162421
                                                                                                                                                                  €160.52Price
                                                                                                                                                                  Flexible à carburant Réservoir / Té Clio 3 CupFlexible à carburant Réservoir / Té Clio 3 Cup
                                                                                                                                                                      Flexible à carburant Réservoir / Té Clio 3 Cup Référence: 7711162421
                                                                                                                                                                      €160.52Price
                                                                                                                                                                      Sur commande ou en cours de réappro
                                                                                                                                                                      €14.00 Price
                                                                                                                                                                      Sur commande ou en cours de réappro
                                                                                                                                                                      €14.00 Price
                                                                                                                                                                      BAC A BATTERIE ETANCHE 45AH/55AH
                                                                                                                                                                          Bac à batterie solide et étanche en polypropylène, livré avec couvercle et sangles de fermeture. Dimensions : 34 cm longueur a la base 20 cm largeur a la base 25 cm de hauteur 42 cm de longueur au milieu 26 cm de largeur au milieu
                                                                                                                                                                          €14.00Price
                                                                                                                                                                          BAC A BATTERIE ETANCHE 45AH/55AH
                                                                                                                                                                              Bac à batterie solide et étanche en polypropylène, livré avec couvercle et sangles de fermeture. Dimensions : 34 cm longueur a la base 20 cm largeur a la base 25 cm de hauteur 42 cm de longueur au milieu 26 cm de largeur au milieu
                                                                                                                                                                              €14.00Price
                                                                                                                                                                              Jeu de 4 Fils de Bougies Magnecor R5 Turbo 1 & 2Jeu de 4 Fils de Bougies Magnecor R5 Turbo 1 & 2
                                                                                                                                                                                  Jeu de 4 Fils de Bougies Magnecor pour Renault 5 Turbo 1 et Turbo 2 Remplace avantageusement le faisceau d'allumage d'origine. Cable haute résistance grâce à une épaisseur de silicone les entourant plus importante. Idéal pour les véhicules mixant les utilisations route et piste. 3 gammes selon la couleur: Gamme bleue: 8 mm Gamme Rouge: 8.5 mm
                                                                                                                                                                                  €110.93Price
                                                                                                                                                                                  Jeu de 4 Fils de Bougies Magnecor R5 Turbo 1 & 2Jeu de 4 Fils de Bougies Magnecor R5 Turbo 1 & 2
                                                                                                                                                                                      Jeu de 4 Fils de Bougies Magnecor pour Renault 5 Turbo 1 et Turbo 2 Remplace avantageusement le faisceau d'allumage d'origine. Cable haute résistance grâce à une épaisseur de silicone les entourant plus importante. Idéal pour les véhicules mixant les utilisations route et piste. 3 gammes selon la couleur: Gamme bleue: 8 mm Gamme Rouge: 8.5 mm
                                                                                                                                                                                      €110.93Price