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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: Entretien
  • Categories: Support moteur
En Stock
€71.22 €79.33 Regular price -€8.11 off Price
En Stock
€71.22 €79.33 Regular price -€8.11 off Price
Jeu de 4 Bougies Clio 2 RS y compris Gr N et X65 Cup
      Set of 4 Original Renault Spark Plugs - Clio 2 RS / Gr N / X65 Cup Optimize the performance of your Renault Clio 2 RS with this set of 4 original Renault spark plugs. Essential for perfect ignition and optimal combustion. Compatibility: Clio 2 RS, Clio 2 Gr N, Clio 2 X65 Cup. Original Renault Part Set of 4 spark plugs ...
      €71.22€79.33Regular price-€8.11 offPrice
      Jeu de 4 Bougies Clio 2 RS y compris Gr N et X65 Cup
          Set of 4 Original Renault Spark Plugs - Clio 2 RS / Gr N / X65 Cup Optimize the performance of your Renault Clio 2 RS with this set of 4 original Renault spark plugs. Essential for perfect ignition and optimal combustion. Compatibility: Clio 2 RS, Clio 2 Gr N, Clio 2 X65 Cup. Original Renault Part Set of 4 spark plugs ...
          €71.22€79.33Regular price-€8.11 offPrice
          Kit Joint Spy Arbres à Cames + Vis de Poulie Clio 2 RS
              Kit Joint Spy Arbres à Cames + Vis de Poulie Kit indispensable pour proceder au changement de la distribution sur Clio 2 RS
              €54.58Price
              Kit Joint Spy Arbres à Cames + Vis de Poulie Clio 2 RS
                  Kit Joint Spy Arbres à Cames + Vis de Poulie Kit indispensable pour proceder au changement de la distribution sur Clio 2 RS
                  €54.58Price
                  En Stock
                  €129.34 Price
                  En Stock
                  €129.34 Price
                  Carter de protection Courroie de distribution Clio RS
                      Pièce empêchant le passage de la courroie d'accessoires dans la distribution Compatible avec Clio 2 RS, Clio 3 RS La mise en place sur Clio 2 nécessite une legere découpe du carter en plastique  Fourni sans les vis, veuillez consulter les produits associés en bas de page
                      €129.34Price
                      Carter de protection Courroie de distribution Clio RS
                          Pièce empêchant le passage de la courroie d'accessoires dans la distribution Compatible avec Clio 2 RS, Clio 3 RS La mise en place sur Clio 2 nécessite une legere découpe du carter en plastique  Fourni sans les vis, veuillez consulter les produits associés en bas de page
                          €129.34Price
                          En Stock
                          €54.41 Price
                          En Stock
                          €54.41 Price
                          Cache bouchons arbres à cames moteur F4R
                              Cache bouchons arbres à cames moteur F4R Kit de 2 plaques de fermeture moteur 7711155481
                              €54.41Price
                              Cache bouchons arbres à cames moteur F4R
                                  Cache bouchons arbres à cames moteur F4R Kit de 2 plaques de fermeture moteur 7711155481
                                  €54.41Price
                                  En Stock
                                  €197.06 Price
                                  En Stock
                                  €197.06 Price
                                  Poulie de dephasage Clio 3 RS - Megane 3 RSPoulie de dephasage Clio 3 RS - Megane 3 RS
                                      Poulie de déphasage Veritable Produit Renault vendu dans sa boite
                                      €197.06Price
                                      Poulie de dephasage Clio 3 RS - Megane 3 RSPoulie de dephasage Clio 3 RS - Megane 3 RS
                                          Poulie de déphasage Veritable Produit Renault vendu dans sa boite
                                          €197.06Price
                                          Renault Camshaft Dephaser Seal – Clio 2/3 RS & Mégane 3 RSRenault Camshaft Dephaser Seal – Clio 2/3 RS & Mégane 3 RS
                                              An aged or damaged seal around the camshaft timing solenoid can lead to oil leaks and additional engine maintenance. The Renault camshaft dephaser solenoid oil seal (reference 7700106385) is designed to provide sealing at the solenoid mounting point on compatible variable...
                                              €16.84Price
                                              Renault Camshaft Dephaser Seal – Clio 2/3 RS & Mégane 3 RSRenault Camshaft Dephaser Seal – Clio 2/3 RS & Mégane 3 RS
                                                  An aged or damaged seal around the camshaft timing solenoid can lead to oil leaks and additional engine maintenance. The Renault camshaft dephaser solenoid oil seal (reference 7700106385) is designed to provide sealing at the solenoid mounting point on compatible variable...
                                                  €16.84Price
                                                  En Stock
                                                  €43.02 Price
                                                  En Stock
                                                  €43.02 Price
                                                  Joint Spy Vilebrequin coté distribution
                                                      The original Renault crankshaft oil seal, timing side is an essential part to ensure crankshaft sealing in the engines of your Renault Clio 2 RS , Clio 2 GR N , Clio 2 X65 Cup , Clio 3 RS , Clio R3 , Clio 3 X85 Cup , Mégane 2 RS , Mégane 3 RS , and...
                                                      €43.02Price
                                                      Joint Spy Vilebrequin coté distribution
                                                          The original Renault crankshaft oil seal, timing side is an essential part to ensure crankshaft sealing in the engines of your Renault Clio 2 RS , Clio 2 GR N , Clio 2 X65 Cup , Clio 3 RS , Clio R3 , Clio 3 X85 Cup , Mégane 2 RS , Mégane 3 RS , and...
                                                          €43.02Price
                                                          DeatschWerks 265L/H Fuel Pump (E85) for Renault Megane 2 RS
                                                              Secure your engine build with the DeatschWerks DW65c fuel pump , delivering a high-performance flow rate of 265L/H . Specifically engineered for the Renault Megane 2 RS , this pump offers the major advantage of being 100% E85 compatible (ethanol), making it the perfect choice for flex-fuel conversions. Its compact design allows...
                                                              €224.09Price
                                                              DeatschWerks 265L/H Fuel Pump (E85) for Renault Megane 2 RS
                                                                  Secure your engine build with the DeatschWerks DW65c fuel pump , delivering a high-performance flow rate of 265L/H . Specifically engineered for the Renault Megane 2 RS , this pump offers the major advantage of being 100% E85 compatible (ethanol), making it the perfect choice for flex-fuel conversions. Its compact design allows...
                                                                  €224.09Price
                                                                  En Stock
                                                                  €12.00 Price
                                                                  En Stock
                                                                  €12.00 Price
                                                                  Bidon de 2 L ELF 700 ST 10w40Bidon de 2 L ELF 700 ST 10w40
                                                                      Bidon de 2L de ELF 700 ST 10W40 Huile Préconisé par Renault l'entretien de la gamme RS comprenant Clio 16S et Williams, Twingo RS, Clio RS, Megane RS..
                                                                      €12.00Price
                                                                      Bidon de 2 L ELF 700 ST 10w40Bidon de 2 L ELF 700 ST 10w40
                                                                          Bidon de 2L de ELF 700 ST 10W40 Huile Préconisé par Renault l'entretien de la gamme RS comprenant Clio 16S et Williams, Twingo RS, Clio RS, Megane RS..
                                                                          €12.00Price
                                                                          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
                                                                                  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
                                                                                          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
                                                                                                  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
                                                                                                          Valve pression carter PCV Clio 4 RSGenuine Renault PCV Valve - Clio 4 RS / Mégane 4 RS & GT 205
                                                                                                              Don't let a poorly managed crankcase pressure impact the health of your engine! Get the genuine Renault PCV Valve (Crankcase Pressure Valve) , an essential part for the Renault Clio 4 RS , Mégane 4 RS , or Mégane 4 GT 205 . A faulty valve leads to oil leaks and loss of...
                                                                                                              €66.43Price
                                                                                                              Valve pression carter PCV Clio 4 RSGenuine Renault PCV Valve - Clio 4 RS / Mégane 4 RS & GT 205
                                                                                                                  Don't let a poorly managed crankcase pressure impact the health of your engine! Get the genuine Renault PCV Valve (Crankcase Pressure Valve) , an essential part for the Renault Clio 4 RS , Mégane 4 RS , or Mégane 4 GT 205 . A faulty valve leads to oil leaks and loss of...
                                                                                                                  €66.43Price
                                                                                                                  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
                                                                                                                          €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
                                                                                                                                  €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
                                                                                                                                          €110.08 Price
                                                                                                                                          En Stock
                                                                                                                                          €110.08 Price
                                                                                                                                          Galet tendeur accessoire Clio 3 RS - Megane 3 RS
                                                                                                                                              Galet tendeur accessoire Megane 3 RS Véritable produit d'origine
                                                                                                                                              €110.08Price
                                                                                                                                              Galet tendeur accessoire Clio 3 RS - Megane 3 RS
                                                                                                                                                  Galet tendeur accessoire Megane 3 RS Véritable produit d'origine
                                                                                                                                                  €110.08Price
                                                                                                                                                  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
                                                                                                                                                          €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
                                                                                                                                                                  €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
                                                                                                                                                                          €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
                                                                                                                                                                                  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
                                                                                                                                                                                          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