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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
  • Categories: Kit Allègement
En Stock
€265.70 Price
En Stock
€265.70 Price
Fuel Gauge/Pump Module Clio 3 RS/R3/Cup - Original
      The original Renault fuel gauge/pump module is an essential part to ensure a reliable and precise fuel supply on your Renault Clio 3 RS , Renault Clio R3 , and Renault Clio 3 X85 Cup . It guarantees accurate fuel level measurement and constant pressure, indispensable for optimal performance. We ship worldwide.
      €265.70Price
      Fuel Gauge/Pump Module Clio 3 RS/R3/Cup - Original
          The original Renault fuel gauge/pump module is an essential part to ensure a reliable and precise fuel supply on your Renault Clio 3 RS , Renault Clio R3 , and Renault Clio 3 X85 Cup . It guarantees accurate fuel level measurement and constant pressure, indispensable for optimal performance. We ship worldwide.
          €265.70Price
          Joint cuivre de bouchon de rampe Twingo R1 et R2 et Clio R3
              Joint cuivre de bouchon de rampe Twingo R1 et R2 et Clio R3 Référence: 7903062105
              €4.16Price
              Joint cuivre de bouchon de rampe Twingo R1 et R2 et Clio R3
                  Joint cuivre de bouchon de rampe Twingo R1 et R2 et Clio R3 Référence: 7903062105
                  €4.16Price
                  Cale admission porte injecteur Twingo 2 RS y compris R1 et R2 160cv
                      Cale admission porte injecteur Twingo 2 RS y compris R1 et R2 160cv Référence: 8200329496
                      €194.51Price
                      Cale admission porte injecteur Twingo 2 RS y compris R1 et R2 160cv
                          Cale admission porte injecteur Twingo 2 RS y compris R1 et R2 160cv Référence: 8200329496
                          €194.51Price
                          En Stock
                          €35.68 Price
                          En Stock
                          €35.68 Price
                          Butée basse pédale d'accélérateur Twingo R2Butée basse pédale d'accélérateur Twingo R2
                              Butée basse pédale d'accélérateur Twingo R2 Référence: 7711157182
                              €35.68Price
                              Butée basse pédale d'accélérateur Twingo R2Butée basse pédale d'accélérateur Twingo R2
                                  Butée basse pédale d'accélérateur Twingo R2 Référence: 7711157182
                                  €35.68Price
                                  En Stock
                                  €24.00 €30.00 Regular price -20% off Price
                                  En Stock
                                  €24.00 €30.00 Regular price -20% off Price
                                  Jeu de Bougies Renault Clio Williams
                                      Jeu de Bougies Renault Clio Williams Véritable produit d'origine
                                      €24.00€30.00Regular price-20% offPrice
                                      Jeu de Bougies Renault Clio Williams
                                          Jeu de Bougies Renault Clio Williams Véritable produit d'origine
                                          €24.00€30.00Regular price-20% offPrice
                                          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
                                                                                          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
                                                                                                  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
                                                                                                          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
                                                                                                                  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
                                                                                                                                  €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
                                                                                                                                          €13.37 Price
                                                                                                                                          En Stock
                                                                                                                                          €13.37 Price
                                                                                                                                          Joint Plenum Clio 2 RS
                                                                                                                                              Joint Plenum Clio 2 RS. Joint permettant de faire l’étanchéité entre le collecteur d'admission et le plenum Il est conseillé de le changer lors à chaque démontage et donc lors du retaillage de l'ensemble collecteur / plenum
                                                                                                                                              €13.37Price
                                                                                                                                              Joint Plenum Clio 2 RS
                                                                                                                                                  Joint Plenum Clio 2 RS. Joint permettant de faire l’étanchéité entre le collecteur d'admission et le plenum Il est conseillé de le changer lors à chaque démontage et donc lors du retaillage de l'ensemble collecteur / plenum
                                                                                                                                                  €13.37Price
                                                                                                                                                  NGK Iridium Spark Plug - Renault Clio 4 RS (Trophy & Sport) (1 unit)NGK Iridium Spark Plug - Renault Clio 4 RS (Trophy & Sport) (1 unit)
                                                                                                                                                      Optimize the ignition of your 1.6 Turbo engine with the NGK Iridium spark plug for Clio 4 RS . Specifically designed for high-performance engines, it offers superior ignitability and exceptional thermal resistance. Sold individually, this premium spark...
                                                                                                                                                      €26.77Price
                                                                                                                                                      NGK Iridium Spark Plug - Renault Clio 4 RS (Trophy & Sport) (1 unit)NGK Iridium Spark Plug - Renault Clio 4 RS (Trophy & Sport) (1 unit)
                                                                                                                                                          Optimize the ignition of your 1.6 Turbo engine with the NGK Iridium spark plug for Clio 4 RS . Specifically designed for high-performance engines, it offers superior ignitability and exceptional thermal resistance. Sold individually, this premium spark...
                                                                                                                                                          €26.77Price
                                                                                                                                                          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
                                                                                                                                                                  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