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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: Circuit d'eau
  • Categories: Entretien
Oil Filter - Renault Clio 4 RS, Megane 4 RS, Alpine A110Oil Filter - Renault Clio 4 RS, Megane 4 RS, Alpine A110
      Preserve your engine's integrity with this genuine Renault oil filter . Specifically engineered for the high-performance engines found in the Renault Clio 4 RS (1.6 Turbo), Renault Megane 4 RS , and Alpine A110 (1.8 Turbo), this filter guarantees optimal removal of impurities. ...
      €11.34Price
      Oil Filter - Renault Clio 4 RS, Megane 4 RS, Alpine A110Oil Filter - Renault Clio 4 RS, Megane 4 RS, Alpine A110
          Preserve your engine's integrity with this genuine Renault oil filter . Specifically engineered for the high-performance engines found in the Renault Clio 4 RS (1.6 Turbo), Renault Megane 4 RS , and Alpine A110 (1.8 Turbo), this filter guarantees optimal removal of impurities. ...
          €11.34Price
          En Stock
          €1.00 Price
          En Stock
          €1.00 Price
          Collier serrage inox (durite) diametre 8-12mm
              Collier serrage inox (durite) diametre 8-12mm Vendu à l'unité
              €1.00Price
              Collier serrage inox (durite) diametre 8-12mm
                  Collier serrage inox (durite) diametre 8-12mm Vendu à l'unité
                  €1.00Price
                  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
                          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
                                          €27.31 Price
                                          En Stock
                                          €27.31 Price
                                          Joint Spy Vilebrequin Twingo RS y compris R1 et  R2
                                              Joint Spy Vilebrequin Twingo RS y compris R1 et R2 Référence: 770086072
                                              €27.31Price
                                              Joint Spy Vilebrequin Twingo RS y compris R1 et  R2
                                                  Joint Spy Vilebrequin Twingo RS y compris R1 et R2 Référence: 770086072
                                                  €27.31Price
                                                  Tampon inférieur radiateur Clio 3 RS y compris R3 et X85 CupTampon inférieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                      Tampon inférieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                      €7.19Price
                                                      Tampon inférieur radiateur Clio 3 RS y compris R3 et X85 CupTampon inférieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                          Tampon inférieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                          €7.19Price
                                                          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
                                                                  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
                                                                          En Stock
                                                                          €4.37 Price
                                                                          En Stock
                                                                          €4.37 Price
                                                                          Bouchon de vidange carter d'huile moteur
                                                                              Bouchon de vidange carter d'huile moteur Produit compatible pour Clio 2 RS, Clio 3 RS, Megane 2 RS et Megane 3 RS
                                                                              €4.37Price
                                                                              Bouchon de vidange carter d'huile moteur
                                                                                  Bouchon de vidange carter d'huile moteur Produit compatible pour Clio 2 RS, Clio 3 RS, Megane 2 RS et Megane 3 RS
                                                                                  €4.37Price
                                                                                  Tampon supérieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                                                      Tampon supérieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                                                      €7.96Price
                                                                                      Tampon supérieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                                                          Tampon supérieur radiateur Clio 3 RS y compris R3 et X85 Cup
                                                                                          €7.96Price
                                                                                          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
                                                                                                  €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
                                                                                                          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
                                                                                                                  €82.45 Price
                                                                                                                  En Stock
                                                                                                                  €82.45 Price
                                                                                                                  Durite d'eau sortie de radiateur Twingo RS R1 et R2
                                                                                                                      Durite d'eau sortie de radiateur Twingo RS R1 et R2 Véritable produit d'origine
                                                                                                                      €82.45Price
                                                                                                                      Durite d'eau sortie de radiateur Twingo RS R1 et R2
                                                                                                                          Durite d'eau sortie de radiateur Twingo RS R1 et R2 Véritable produit d'origine
                                                                                                                          €82.45Price
                                                                                                                          En Stock
                                                                                                                          €1.00 Price
                                                                                                                          En Stock
                                                                                                                          €1.00 Price
                                                                                                                          Collier serrage inox (durite) diametre 12-20mm
                                                                                                                              Collier serrage inox (durite) diametre 12-20mm Vendu à l'unité
                                                                                                                              €1.00Price
                                                                                                                              Collier serrage inox (durite) diametre 12-20mm
                                                                                                                                  Collier serrage inox (durite) diametre 12-20mm Vendu à l'unité
                                                                                                                                  €1.00Price
                                                                                                                                  Renault Clio 2 RS Mechanical Throttle Potentiometer (Original Equivalent)Renault Clio 2 RS Mechanical Throttle Potentiometer (Original Equivalent)
                                                                                                                                      Mechanical throttle potentiometer, identical to the original, compatible with Renault Clio 2 RS, Clio 2 Rally, Clio 2 Gr N, and Clio 2 X65 Cup. Optimal performance and precision for your vehicle.
                                                                                                                                      €67.50Price
                                                                                                                                      Renault Clio 2 RS Mechanical Throttle Potentiometer (Original Equivalent)Renault Clio 2 RS Mechanical Throttle Potentiometer (Original Equivalent)
                                                                                                                                          Mechanical throttle potentiometer, identical to the original, compatible with Renault Clio 2 RS, Clio 2 Rally, Clio 2 Gr N, and Clio 2 X65 Cup. Optimal performance and precision for your vehicle.
                                                                                                                                          €67.50Price
                                                                                                                                          En Stock
                                                                                                                                          €18.79 Price
                                                                                                                                          En Stock
                                                                                                                                          €18.79 Price
                                                                                                                                          ELF Tranself NFX SAE 75W Gearbox Oil – 1L
                                                                                                                                              ELF Tranself NFX SAE 75W Gearbox Oil – 1 Litre The ELF Tranself NFX SAE 75W gearbox oil is a synthetic transmission lubricant designed for manual gearboxes requiring...
                                                                                                                                              €18.79Price
                                                                                                                                              ELF Tranself NFX SAE 75W Gearbox Oil – 1L
                                                                                                                                                  ELF Tranself NFX SAE 75W Gearbox Oil – 1 Litre The ELF Tranself NFX SAE 75W gearbox oil is a synthetic transmission lubricant designed for manual gearboxes requiring...
                                                                                                                                                  €18.79Price
                                                                                                                                                  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
                                                                                                                                                          Vis de pompe à eau Clio 2 RS y compris X65Cup et Gr N
                                                                                                                                                              Secure your engine block seal and guarantee the total reliability of your cooling circuit with these factory-spec Water Pump Fixing Bolts for the Renault Clio 2 RS, X65 Cup, and Group N . Engineered specifically for the naturally aspirated 2.0L 16V F4R engine, this high-grade...
                                                                                                                                                              €2.82Price
                                                                                                                                                              Vis de pompe à eau Clio 2 RS y compris X65Cup et Gr N
                                                                                                                                                                  Secure your engine block seal and guarantee the total reliability of your cooling circuit with these factory-spec Water Pump Fixing Bolts for the Renault Clio 2 RS, X65 Cup, and Group N . Engineered specifically for the naturally aspirated 2.0L 16V F4R engine, this high-grade...
                                                                                                                                                                  €2.82Price
                                                                                                                                                                  Joint de sonde de temperature d'eau Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                                                      Joint de sonde de temperature d'eau Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                                                      €2.47Price
                                                                                                                                                                      Joint de sonde de temperature d'eau Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                                                          Joint de sonde de temperature d'eau Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                                                          €2.47Price
                                                                                                                                                                          Durite Sortie radiateur de chauffage Twingo RS R1 et R2
                                                                                                                                                                              Durite Sortie radiateur de chauffage Twingo RS R1 et R2 Véritable produit d'origine
                                                                                                                                                                              €38.53Price
                                                                                                                                                                              Durite Sortie radiateur de chauffage Twingo RS R1 et R2
                                                                                                                                                                                  Durite Sortie radiateur de chauffage Twingo RS R1 et R2 Véritable produit d'origine
                                                                                                                                                                                  €38.53Price
                                                                                                                                                                                  Joint décanteur Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                                                                      The Renault Oil Separator Seal is an original part designed to ensure the oil separator's sealing. Compatible with the Renault Clio 2 RS , Clio 2 Gr N , Clio 2 X65 Cup , and their rally/circuit versions, it is essential for proper engine function. Important: Verify your oil separator's shape, as two mounting...
                                                                                                                                                                                      €35.80Price
                                                                                                                                                                                      Joint décanteur Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                                                                          The Renault Oil Separator Seal is an original part designed to ensure the oil separator's sealing. Compatible with the Renault Clio 2 RS , Clio 2 Gr N , Clio 2 X65 Cup , and their rally/circuit versions, it is essential for proper engine function. Important: Verify your oil separator's shape, as two mounting...
                                                                                                                                                                                          €35.80Price
                                                                                                                                                                                          En Stock
                                                                                                                                                                                          €202.12 Price
                                                                                                                                                                                          En Stock
                                                                                                                                                                                          €202.12 Price
                                                                                                                                                                                          Isolant Tablier Clio 2 RS
                                                                                                                                                                                              Genuine Renault Bulkhead Insulator for Clio 2 RS and Clio 2 Gr N. Reduce noise and protect your engine compartment with this high-quality insulator. Don't forget the necessary clips and fasteners for optimal installation (available at the bottom of the page).
                                                                                                                                                                                              €202.12Price
                                                                                                                                                                                              Isolant Tablier Clio 2 RS
                                                                                                                                                                                                  Genuine Renault Bulkhead Insulator for Clio 2 RS and Clio 2 Gr N. Reduce noise and protect your engine compartment with this high-quality insulator. Don't forget the necessary clips and fasteners for optimal installation (available at the bottom of the page).
                                                                                                                                                                                                  €202.12Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €1.10 Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €1.10 Price
                                                                                                                                                                                                  Collier serrage inox (durite) diametre 20-32mm
                                                                                                                                                                                                      Collier serrage inox (durite) diametre 20-32mm Vendu à l'unité
                                                                                                                                                                                                      €1.10Price
                                                                                                                                                                                                      Collier serrage inox (durite) diametre 20-32mm
                                                                                                                                                                                                          Collier serrage inox (durite) diametre 20-32mm Vendu à l'unité
                                                                                                                                                                                                          €1.10Price
                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                          €486.55 Price
                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                          €486.55 Price
                                                                                                                                                                                                          Collecteur admission Clio 2 X65 Cup et Gr N
                                                                                                                                                                                                              Collecteur admission Clio 2 X65 Cup et Gr N Prévu pour papillon mécanique
                                                                                                                                                                                                              €486.55Price
                                                                                                                                                                                                              Collecteur admission Clio 2 X65 Cup et Gr N
                                                                                                                                                                                                                  Collecteur admission Clio 2 X65 Cup et Gr N Prévu pour papillon mécanique
                                                                                                                                                                                                                  €486.55Price
                                                                                                                                                                                                                  Tuyau carburant entre réservoir et coupling Goodridge Megane N4
                                                                                                                                                                                                                      Tuyau carburant entre réservoir et coupling Goodridge Megane N4 Référence: 7711167089
                                                                                                                                                                                                                      €173.57Price
                                                                                                                                                                                                                      Tuyau carburant entre réservoir et coupling Goodridge Megane N4
                                                                                                                                                                                                                          Tuyau carburant entre réservoir et coupling Goodridge Megane N4 Référence: 7711167089
                                                                                                                                                                                                                          €173.57Price
                                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                                          €14.89 Price
                                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                                          €14.89 Price
                                                                                                                                                                                                                          Bouchon étanchéité aac admission
                                                                                                                                                                                                                              Renault Camshaft Intake Sealing Plug – Reference 7700106271 The Renault camshaft sealing plug, reference 7700106271 , is an engine component designed to seal an opening in the cylinder head...
                                                                                                                                                                                                                              €14.89Price
                                                                                                                                                                                                                              Bouchon étanchéité aac admission
                                                                                                                                                                                                                                  Renault Camshaft Intake Sealing Plug – Reference 7700106271 The Renault camshaft sealing plug, reference 7700106271 , is an engine component designed to seal an opening in the cylinder head...
                                                                                                                                                                                                                                  €14.89Price