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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.

Active filters

En Stock
€119.28 Price
En Stock
€119.28 Price
Capteur pédale accélérateur Clio 3 RS
      Capteur pédale accélérateur Clio 3 RS Attention 2 types de connecteurs existent, merci de controler la compatibilité avec votre véhicule Véritable produit d'origine
      €119.28Price
      Capteur pédale accélérateur Clio 3 RS
          Capteur pédale accélérateur Clio 3 RS Attention 2 types de connecteurs existent, merci de controler la compatibilité avec votre véhicule Véritable produit d'origine
          €119.28Price
          En Stock
          €9.89 Price
          En Stock
          €9.89 Price
          Plot Caoutchouc cache supérieur moteur Megane RS
              Plot Caoutchouc cache supérieur moteur Véritable produit d'origine pour Megane 2 RS et Megane 3 RS
              €9.89Price
              Plot Caoutchouc cache supérieur moteur Megane RS
                  Plot Caoutchouc cache supérieur moteur Véritable produit d'origine pour Megane 2 RS et Megane 3 RS
                  €9.89Price
                  Durite d'induction (admission) Forge Motorsport Megane 4 RSDurite d'induction (admission) Forge Motorsport Megane 4 RS
                      Durite d'induction (admission) Forge Motorsport Megane 4 RS Produit de qualité permettant de limiter les perturbations.
                      €118.31Price
                      Durite d'induction (admission) Forge Motorsport Megane 4 RSDurite d'induction (admission) Forge Motorsport Megane 4 RS
                          Durite d'induction (admission) Forge Motorsport Megane 4 RS Produit de qualité permettant de limiter les perturbations.
                          €118.31Price
                          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
                                  En Stock
                                  €220.69 Price
                                  En Stock
                                  €220.69 Price
                                  Conduit air HP entrée boitier Clio 4 RSConduit air HP entrée boitier Clio 4 RS
                                      Conduit air HP entrée boitier Clio 4 RS Permet de remplacer le produit qui s'ouvre de temps en temps sous la pression du Turbo Produit d'origine
                                      €220.69Price
                                      Conduit air HP entrée boitier Clio 4 RSConduit air HP entrée boitier Clio 4 RS
                                          Conduit air HP entrée boitier Clio 4 RS Permet de remplacer le produit qui s'ouvre de temps en temps sous la pression du Turbo Produit d'origine
                                          €220.69Price
                                          En Stock
                                          €266.00 Price
                                          En Stock
                                          €266.00 Price
                                          Wasegate Forge Clio 4 RS
                                              Optimize your boost management with the Forge Motorsport Wastegate for Renault Clio 4 RS (reference FMACRTRCT ). This piston-actuated turbo actuator is designed to provide significantly higher pressure stability than the factory unit. Essential for...
                                              €266.00Price
                                              Wasegate Forge Clio 4 RS
                                                  Optimize your boost management with the Forge Motorsport Wastegate for Renault Clio 4 RS (reference FMACRTRCT ). This piston-actuated turbo actuator is designed to provide significantly higher pressure stability than the factory unit. Essential for...
                                                  €266.00Price
                                                  En Stock
                                                  €232.70 Price
                                                  En Stock
                                                  €232.70 Price
                                                  Support moteur sur moteur Clio R3Renault Clio R3 Engine Mount (7711160468)
                                                      Optimize your Renault Clio R3 engine mount with this official Renault Sport engine support (ref. 7711160468) . Designed for optimal performance, it ensures a robust and precise fixation of your engine. Find the associated silent blocks and body side mount at the bottom of the page for a complete assembly.
                                                      €232.70Price
                                                      Support moteur sur moteur Clio R3Renault Clio R3 Engine Mount (7711160468)
                                                          Optimize your Renault Clio R3 engine mount with this official Renault Sport engine support (ref. 7711160468) . Designed for optimal performance, it ensures a robust and precise fixation of your engine. Find the associated silent blocks and body side mount at the bottom of the page for a complete assembly.
                                                          €232.70Price
                                                          En Stock
                                                          €667.54 Price
                                                          En Stock
                                                          €667.54 Price
                                                          Support moteur sur caisse Clio R3
                                                              Secure and optimize the fixation of your engine to the body of your Renault Clio R3 with this official Renault Sport body side engine mount (ref. 7711160466) . Essential for a perfect chassis-engine connection, it contributes to driving precision and the reduction of vibrations. Find the associated engine side engine mount at the...
                                                              €667.54Price
                                                              Support moteur sur caisse Clio R3
                                                                  Secure and optimize the fixation of your engine to the body of your Renault Clio R3 with this official Renault Sport body side engine mount (ref. 7711160466) . Essential for a perfect chassis-engine connection, it contributes to driving precision and the reduction of vibrations. Find the associated engine side engine mount at the...
                                                                  €667.54Price
                                                                  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
                                                                          Entretoise berceau (support moteur anti cabrage) Clio 3 Cup
                                                                              The Renault Sport cradle spacer (ref. 7711160193 ) is an essential part to optimize the lower engine anti-pitch for your Renault Clio 3 X85 Cup . It improves chassis rigidity and engine stability.
                                                                              €10.44Price
                                                                              Entretoise berceau (support moteur anti cabrage) Clio 3 Cup
                                                                                  The Renault Sport cradle spacer (ref. 7711160193 ) is an essential part to optimize the lower engine anti-pitch for your Renault Clio 3 X85 Cup . It improves chassis rigidity and engine stability.
                                                                                  €10.44Price
                                                                                  En Stock
                                                                                  €140.06 Price
                                                                                  En Stock
                                                                                  €140.06 Price
                                                                                  Suspension GMP AV D (support coiffe moteur) Clio X85 CupRenault Clio 3 X85 Cup Body Mount (7711160012)
                                                                                      Strengthen the engine-chassis connection of your Renault Clio 3 X85 Cup with this official Renault Sport body side engine mount (ref. 7711160012) . Essential for minimizing vibrations and optimizing handling. Find the associated engine side engine mount at the bottom of the page for a complete assembly.
                                                                                      €140.06Price
                                                                                      Suspension GMP AV D (support coiffe moteur) Clio X85 CupRenault Clio 3 X85 Cup Body Mount (7711160012)
                                                                                          Strengthen the engine-chassis connection of your Renault Clio 3 X85 Cup with this official Renault Sport body side engine mount (ref. 7711160012) . Essential for minimizing vibrations and optimizing handling. Find the associated engine side engine mount at the bottom of the page for a complete assembly.
                                                                                          €140.06Price
                                                                                          En Stock
                                                                                          €98.33 Price
                                                                                          En Stock
                                                                                          €98.33 Price
                                                                                          Reinforced aluminum piston dump valve by Forge Motorsport for Megane 4 GT 205, SKU: FMSPRN12.Forge Piston Dump Valve | Renault Megane 4 GT 205
                                                                                              Prevent boost pressure leaks and safeguard your turbocharger's mechanical integrity with the Forge Dump Valve Megane 4 GT 205 . Engineered to replace the fragile factory rubber diaphragm valve, this premium billet aluminum piston-driven version guarantees a perfect air-tight...
                                                                                              €98.33Price
                                                                                              Reinforced aluminum piston dump valve by Forge Motorsport for Megane 4 GT 205, SKU: FMSPRN12.Forge Piston Dump Valve | Renault Megane 4 GT 205
                                                                                                  Prevent boost pressure leaks and safeguard your turbocharger's mechanical integrity with the Forge Dump Valve Megane 4 GT 205 . Engineered to replace the fragile factory rubber diaphragm valve, this premium billet aluminum piston-driven version guarantees a perfect air-tight...
                                                                                                  €98.33Price
                                                                                                  CHC M8-20 Renault Sport Bolt for Twingo R2 (7711128280)CHC M8-20 Renault Sport Bolt for Twingo R2 (7711128280)
                                                                                                      Ensure the reliability of your assembly with this Genuine Renault Sport CHC M8-20 Bolt , reference 7711128280 . Specifically engineered for the high-stress environment of the Twingo R2 , this fastening component guarantees torque consistency...
                                                                                                      €1.06Price
                                                                                                      CHC M8-20 Renault Sport Bolt for Twingo R2 (7711128280)CHC M8-20 Renault Sport Bolt for Twingo R2 (7711128280)
                                                                                                          Ensure the reliability of your assembly with this Genuine Renault Sport CHC M8-20 Bolt , reference 7711128280 . Specifically engineered for the high-stress environment of the Twingo R2 , this fastening component guarantees torque consistency...
                                                                                                          €1.06Price
                                                                                                          Collection de 3 segments pour piston Twingo RS R1 et R2 160
                                                                                                              Original RENAULT Piston Ring Set for Twingo 2 RS (for 1 piston) Do not compromise the compression and power of your Twingo 2 RS engine. This original RENAULT piston...
                                                                                                              €68.32Price
                                                                                                              Collection de 3 segments pour piston Twingo RS R1 et R2 160
                                                                                                                  Original RENAULT Piston Ring Set for Twingo 2 RS (for 1 piston) Do not compromise the compression and power of your Twingo 2 RS engine. This original RENAULT piston...
                                                                                                                  €68.32Price
                                                                                                                  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
                                                                                                                          €45.46 Price
                                                                                                                          En Stock
                                                                                                                          €45.46 Price
                                                                                                                          Adaptateur rallonge sonde pression d'huile Twingo R2Adaptateur rallonge sonde pression d'huile Twingo R2
                                                                                                                              Adaptateur rallonge sonde pression d'huile Twingo R2 Référence: 7711157208
                                                                                                                              €45.46Price
                                                                                                                              Adaptateur rallonge sonde pression d'huile Twingo R2Adaptateur rallonge sonde pression d'huile Twingo R2
                                                                                                                                  Adaptateur rallonge sonde pression d'huile Twingo R2 Référence: 7711157208
                                                                                                                                  €45.46Price
                                                                                                                                  En Stock
                                                                                                                                  €133.56 Price
                                                                                                                                  En Stock
                                                                                                                                  €133.56 Price
                                                                                                                                  Piston équipé indice B (X82.70) Clio 3 RS et X85 Cup
                                                                                                                                      Piston équipé indice B (X=82.70) Clio 3 RS et X85 Cup Piston d'origine
                                                                                                                                      €133.56Price
                                                                                                                                      Piston équipé indice B (X82.70) Clio 3 RS et X85 Cup
                                                                                                                                          Piston équipé indice B (X=82.70) Clio 3 RS et X85 Cup Piston d'origine
                                                                                                                                          €133.56Price
                                                                                                                                          Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
                                                                                                                                              Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
                                                                                                                                              €41.95Price
                                                                                                                                              Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
                                                                                                                                                  Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
                                                                                                                                                  €41.95Price
                                                                                                                                                  Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
                                                                                                                                                      Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
                                                                                                                                                      €37.90Price
                                                                                                                                                      Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
                                                                                                                                                          Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
                                                                                                                                                          €37.90Price
                                                                                                                                                          Sonde pression Twingo R2New Genuine Renault Sport Oil Pressure Sensor - Clio R3 & Twingo R2
                                                                                                                                                              This new oil pressure sensor , from the Renault Sport competition catalog , is a vital safety part for the rally engines of the Renault Clio R3 and Twingo R2 . It is essential for monitoring lubrication and thereby preventing catastrophic engine failures caused by a lack or drop in oil pressure.
                                                                                                                                                              €195.78Price
                                                                                                                                                              Sonde pression Twingo R2New Genuine Renault Sport Oil Pressure Sensor - Clio R3 & Twingo R2
                                                                                                                                                                  This new oil pressure sensor , from the Renault Sport competition catalog , is a vital safety part for the rally engines of the Renault Clio R3 and Twingo R2 . It is essential for monitoring lubrication and thereby preventing catastrophic engine failures caused by a lack or drop in oil pressure.
                                                                                                                                                                  €195.78Price
                                                                                                                                                                  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
                                                                                                                                                                          Linguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RSLinguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RS
                                                                                                                                                                              Linguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RSVéritable produit d'origine
                                                                                                                                                                              €90.76Price
                                                                                                                                                                              Linguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RSLinguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RS
                                                                                                                                                                                  Linguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RSVéritable produit d'origine
                                                                                                                                                                                  €90.76Price
                                                                                                                                                                                  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
                                                                                                                                                                                          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 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
                                                                                                                                                                                                          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
                                                                                                                                                                                                                  €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
                                                                                                                                                                                                                          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