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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
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  • Categories: Support moteur
Interrupteur coup de poing Megane N4
      Take zero risks on the track or in competition with this genuine Renault Sport emergency kill switch . An essential component of the electrical system for the Renault Megane N4 and Renault Twingo R2 , this emergency cutoff switch immediately cuts off power in the event of an incident to prevent electrical...
      €20.30Price
      Interrupteur coup de poing Megane N4
          Take zero risks on the track or in competition with this genuine Renault Sport emergency kill switch . An essential component of the electrical system for the Renault Megane N4 and Renault Twingo R2 , this emergency cutoff switch immediately cuts off power in the event of an incident to prevent electrical...
          €20.30Price
          En Stock
          €402.96 Price
          En Stock
          €402.96 Price
          Convergent boitier filtre assemblé Twingo R2 195cvConvergent boitier filtre assemblé Twingo R2 195cv
              Convergent boitier filtre assemblé Twingo R2 195cv
              €402.96Price
              Convergent boitier filtre assemblé Twingo R2 195cvConvergent boitier filtre assemblé Twingo R2 195cv
                  Convergent boitier filtre assemblé Twingo R2 195cv
                  €402.96Price
                  Tuyau carburant entre 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
                          €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
                                  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
                                          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
                                                  €546.20 Price
                                                  En Stock
                                                  €546.20 Price
                                                  Alternateur Clio 3 RS y compris X85 Cup et R3
                                                      Ensure reliable electrical power for your Renault Clio 3 RS , Renault Clio R3 , or Renault Clio 3 X85 Cup with this genuine RENAULT alternator . An essential component for the proper functioning of your sports vehicle. Find associated complementary products at the bottom of the page for optimal...
                                                      €546.20Price
                                                      Alternateur Clio 3 RS y compris X85 Cup et R3
                                                          Ensure reliable electrical power for your Renault Clio 3 RS , Renault Clio R3 , or Renault Clio 3 X85 Cup with this genuine RENAULT alternator . An essential component for the proper functioning of your sports vehicle. Find associated complementary products at the bottom of the page for optimal...
                                                          €546.20Price
                                                          En Stock
                                                          €35.68 Price
                                                          En Stock
                                                          €35.68 Price
                                                          Butée basse pédale d'accélérateur Twingo R2Butée basse pédale d'accélérateur Twingo R2
                                                              Butée basse pédale d'accélérateur Twingo R2 Référence: 7711157182
                                                              €35.68Price
                                                              Butée basse pédale d'accélérateur Twingo R2Butée basse pédale d'accélérateur Twingo R2
                                                                  Butée basse pédale d'accélérateur Twingo R2 Référence: 7711157182
                                                                  €35.68Price
                                                                  En Stock
                                                                  €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
                                                                          Genuine AC Delete Accessory Bracket - Renault Twingo 2 RSGenuine AC Delete Accessory Bracket - Renault Twingo 2 RS
                                                                              Don't let a heavy and power-consuming air conditioning compressor hold back the performance of your Renault Twingo 2 RS . This genuine Renault accessory bracket is the official solution for a reliable AC delete . Specifically designed for the K4M RS engine , it allows for significant weight reduction and improved engine...
                                                                              €217.02Price
                                                                              Genuine AC Delete Accessory Bracket - Renault Twingo 2 RSGenuine AC Delete Accessory Bracket - Renault Twingo 2 RS
                                                                                  Don't let a heavy and power-consuming air conditioning compressor hold back the performance of your Renault Twingo 2 RS . This genuine Renault accessory bracket is the official solution for a reliable AC delete . Specifically designed for the K4M RS engine , it allows for significant weight reduction and improved engine...
                                                                                  €217.02Price
                                                                                  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
                                                                                          Sur commande ou en cours de réappro
                                                                                          €10.72 Price
                                                                                          Sur commande ou en cours de réappro
                                                                                          €10.72 Price
                                                                                          • New
                                                                                            Genuine Renault mounting bolt sold individually, specifically designed to secure the timing side engine mount to the chassis. Essential to ensure perfect alignment of the engine block and prevent severe vibrations or hardware failure on your Renault Clio 2 RS or Clio 2 Group N race car.
                                                                                            €10.72Price
                                                                                            • New
                                                                                              Genuine Renault mounting bolt sold individually, specifically designed to secure the timing side engine mount to the chassis. Essential to ensure perfect alignment of the engine block and prevent severe vibrations or hardware failure on your Renault Clio 2 RS or Clio 2 Group N race car.
                                                                                              €10.72Price
                                                                                              Sur commande ou en cours de réappro
                                                                                              €42.50 Price
                                                                                              Sur commande ou en cours de réappro
                                                                                              €42.50 Price
                                                                                              Sur commande ou en cours de réappro
                                                                                              €248.35 Price
                                                                                              Sur commande ou en cours de réappro
                                                                                              €248.35 Price
                                                                                              Tampon hydro élastique (support moteur) coté distribution Clio 4 RSGenuine Renault Clio 4 RS Timing Side Hydro Engine Mount
                                                                                                  Protect your engine's integrity with this genuine RENAULT timing-side engine mount (hydro-elastic damper). Specifically engineered for the Renault Clio 4 RS , this essential component ensures optimal vibration dampening and rigorous stability for your 1.6 Turbo block. Don't let a sagging mount compromise your...
                                                                                                  €248.35Price
                                                                                                  Tampon hydro élastique (support moteur) coté distribution Clio 4 RSGenuine Renault Clio 4 RS Timing Side Hydro Engine Mount
                                                                                                      Protect your engine's integrity with this genuine RENAULT timing-side engine mount (hydro-elastic damper). Specifically engineered for the Renault Clio 4 RS , this essential component ensures optimal vibration dampening and rigorous stability for your 1.6 Turbo block. Don't let a sagging mount compromise your...
                                                                                                      €248.35Price
                                                                                                      Sur commande ou en cours de réappro
                                                                                                      €21.31 Price
                                                                                                      Sur commande ou en cours de réappro
                                                                                                      €21.31 Price
                                                                                                      Silent Bloc Renforcement anti cabrage inférieur Powerflex Twingo 2 RSSilent Bloc Renforcement anti cabrage inférieur Powerflex Twingo 2 RS
                                                                                                          Silent Bloc Renforcement anti cabrage inférieur Powerflex Twingo 2 RS Uniquement compatible avec l'anti cabrage d'origine en version Acier Le silent bloc renforce l'origine mais ne le remplace pas. Si le silent bloc d'origine est mort, la mise en place du renfort ne le sauvera pas. Si vous disposez de l'anti cabrage d'origine en Aluminium, veuillez consulter nos autres...
                                                                                                          €21.31Price
                                                                                                          Silent Bloc Renforcement anti cabrage inférieur Powerflex Twingo 2 RSSilent Bloc Renforcement anti cabrage inférieur Powerflex Twingo 2 RS
                                                                                                              Silent Bloc Renforcement anti cabrage inférieur Powerflex Twingo 2 RS Uniquement compatible avec l'anti cabrage d'origine en version Acier Le silent bloc renforce l'origine mais ne le remplace pas. Si le silent bloc d'origine est mort, la mise en place du renfort ne le sauvera pas. Si vous disposez de l'anti cabrage d'origine en Aluminium, veuillez consulter nos autres...
                                                                                                              €21.31Price
                                                                                                              Sur commande ou en cours de réappro
                                                                                                              €8.77 Price
                                                                                                              Sur commande ou en cours de réappro
                                                                                                              €8.77 Price
                                                                                                              Entretoise centrage carter support moteur
                                                                                                                  Entretoise centrage carter support moteur
                                                                                                                  €8.77Price
                                                                                                                  Entretoise centrage carter support moteur
                                                                                                                      Entretoise centrage carter support moteur
                                                                                                                      €8.77Price
                                                                                                                      Sur commande ou en cours de réappro
                                                                                                                      €407.03 Price
                                                                                                                      Sur commande ou en cours de réappro
                                                                                                                      €407.03 Price
                                                                                                                      New Genuine Renault Starter Motor - Clio 4 RS (All Phases)
                                                                                                                          Ensure an instantaneous start for your Renault Clio 4 RS (all phases) with this brand-new genuine Renault starter motor . Unlike remanufactured units, this 100% new product guarantees maximum reliability and increased longevity for your 1.6 Turbo engine. Don't risk an immobilizing breakdown—choose manufacturer...
                                                                                                                          €407.03Price
                                                                                                                          New Genuine Renault Starter Motor - Clio 4 RS (All Phases)
                                                                                                                              Ensure an instantaneous start for your Renault Clio 4 RS (all phases) with this brand-new genuine Renault starter motor . Unlike remanufactured units, this 100% new product guarantees maximum reliability and increased longevity for your 1.6 Turbo engine. Don't risk an immobilizing breakdown—choose manufacturer...
                                                                                                                              €407.03Price
                                                                                                                              Sur commande ou en cours de réappro
                                                                                                                              €77.12 Price
                                                                                                                              Sur commande ou en cours de réappro
                                                                                                                              €77.12 Price
                                                                                                                              Power Distribution Box & Starter Fuse Renault Megane 3 RSPower Distribution Box & Starter Fuse Renault Megane 3 RS
                                                                                                                                  Do not let a minor electrical failure lead to a major breakdown. This genuine Renault power distribution box is a critical component of your Renault Megane 3 RS starting circuit. Integrating essential high-power fuses , specifically for the starter motor and alternator protection, it ensures secure energy management from your...
                                                                                                                                  €77.12Price
                                                                                                                                  Power Distribution Box & Starter Fuse Renault Megane 3 RSPower Distribution Box & Starter Fuse Renault Megane 3 RS
                                                                                                                                      Do not let a minor electrical failure lead to a major breakdown. This genuine Renault power distribution box is a critical component of your Renault Megane 3 RS starting circuit. Integrating essential high-power fuses , specifically for the starter motor and alternator protection, it ensures secure energy management from your...
                                                                                                                                      €77.12Price
                                                                                                                                      Sur commande ou en cours de réappro
                                                                                                                                      €73.14 Price
                                                                                                                                      Sur commande ou en cours de réappro
                                                                                                                                      €73.14 Price
                                                                                                                                      Biellette Superieure Anti Cabrage Sup Megane 2 RS DCIBiellette Superieure Anti Cabrage Sup Megane 2 RS DCI
                                                                                                                                          Biellette Superieure Anti Cabrage Sup Megane 2 RS DCI Biellette Anti couple
                                                                                                                                          €73.14Price
                                                                                                                                          Biellette Superieure Anti Cabrage Sup Megane 2 RS DCIBiellette Superieure Anti Cabrage Sup Megane 2 RS DCI
                                                                                                                                              Biellette Superieure Anti Cabrage Sup Megane 2 RS DCI Biellette Anti couple
                                                                                                                                              €73.14Price
                                                                                                                                              Sur commande ou en cours de réappro
                                                                                                                                              €188.74 Price
                                                                                                                                              Sur commande ou en cours de réappro
                                                                                                                                              €188.74 Price
                                                                                                                                              Jauge pompe Clio 2 RS 1
                                                                                                                                                  Jauge pompe Clio 2 RS 1 Modele spécifique ayant le régulateur sur la pompe
                                                                                                                                                  €188.74Price
                                                                                                                                                  Jauge pompe Clio 2 RS 1
                                                                                                                                                      Jauge pompe Clio 2 RS 1 Modele spécifique ayant le régulateur sur la pompe
                                                                                                                                                      €188.74Price
                                                                                                                                                      Sur commande ou en cours de réappro
                                                                                                                                                      €272.90 Price
                                                                                                                                                      Sur commande ou en cours de réappro
                                                                                                                                                      €272.90 Price
                                                                                                                                                      Sur commande ou en cours de réappro
                                                                                                                                                      €63.72 Price
                                                                                                                                                      Sur commande ou en cours de réappro
                                                                                                                                                      €63.72 Price
                                                                                                                                                      Powerflex Black Series Rear Central Engine Mount - Clio RS / Twingo RSPowerflex Black Series Rear Central Engine Mount - Clio RS / Twingo RS
                                                                                                                                                          Stop letting excessive engine movement ruin your gear changes. The Powerflex Black Series Rear Central Anti-Squat Bush (reference PFF60-211K-BLK ) is the definitive solution to lock down your powertrain. Designed specifically for the Clio 2 RS, Clio 3 RS, and Twingo 2 RS , this reinforced mount eliminates...
                                                                                                                                                          €63.72Price
                                                                                                                                                          Powerflex Black Series Rear Central Engine Mount - Clio RS / Twingo RSPowerflex Black Series Rear Central Engine Mount - Clio RS / Twingo RS
                                                                                                                                                              Stop letting excessive engine movement ruin your gear changes. The Powerflex Black Series Rear Central Anti-Squat Bush (reference PFF60-211K-BLK ) is the definitive solution to lock down your powertrain. Designed specifically for the Clio 2 RS, Clio 3 RS, and Twingo 2 RS , this reinforced mount eliminates...
                                                                                                                                                              €63.72Price
                                                                                                                                                              Sur commande ou en cours de réappro
                                                                                                                                                              €55.14 Price
                                                                                                                                                              Sur commande ou en cours de réappro
                                                                                                                                                              €55.14 Price
                                                                                                                                                              Powerflex Black Series rear lower engine mount dog bone insert Clio 16S RS1 PFF60206K-BLK
                                                                                                                                                                  Don't risk sloppy gear shifts or damaged engine mounts under hard acceleration. The Powerflex Black Series rear lower engine mount insert kit (Reference: PFF60206K-BLK) locks down drivetrain movement on your Renault Clio 16S, Clio Williams, or Clio 2...
                                                                                                                                                                  €55.14Price
                                                                                                                                                                  Powerflex Black Series rear lower engine mount dog bone insert Clio 16S RS1 PFF60206K-BLK
                                                                                                                                                                      Don't risk sloppy gear shifts or damaged engine mounts under hard acceleration. The Powerflex Black Series rear lower engine mount insert kit (Reference: PFF60206K-BLK) locks down drivetrain movement on your Renault Clio 16S, Clio Williams, or Clio 2...
                                                                                                                                                                      €55.14Price
                                                                                                                                                                      Sur commande ou en cours de réappro
                                                                                                                                                                      €87.15 €116.20 Regular price -25% off Price
                                                                                                                                                                      Sur commande ou en cours de réappro
                                                                                                                                                                      €87.15 €116.20 Regular price -25% off Price
                                                                                                                                                                      Genuine lower engine torque dogbone mount Renault Megane 3 RS 250 265 275Lower Engine Anti-Roll Mount | Renault Megane 3 RS
                                                                                                                                                                          Don't let a worn lower engine mount ruin your gear shifts and compromise your hot hatch's traction. This genuine lower torque mount / anti-roll bone for Renault Megane 3 RS locks down engine movement under hard acceleration and aggressive downshifts. ...
                                                                                                                                                                          €87.15€116.20Regular price-25% offPrice
                                                                                                                                                                          Genuine lower engine torque dogbone mount Renault Megane 3 RS 250 265 275Lower Engine Anti-Roll Mount | Renault Megane 3 RS
                                                                                                                                                                              Don't let a worn lower engine mount ruin your gear shifts and compromise your hot hatch's traction. This genuine lower torque mount / anti-roll bone for Renault Megane 3 RS locks down engine movement under hard acceleration and aggressive downshifts. ...
                                                                                                                                                                              €87.15€116.20Regular price-25% offPrice
                                                                                                                                                                              Sur commande ou en cours de réappro
                                                                                                                                                                              €94.26 €134.65 Regular price -30% off Price
                                                                                                                                                                              Sur commande ou en cours de réappro
                                                                                                                                                                              €94.26 €134.65 Regular price -30% off Price
                                                                                                                                                                              Support Moteur Coté Distribution Mégane 2 RSRight Engine Mount - Genuine Renault Megane 2 RS
                                                                                                                                                                                  Restore stability to your engine block with this genuine Renault right-hand engine mount (timing belt side). Specifically designed for the Renault Megane 2 RS , this hydraulic mount is essential for filtering vibrations and maintaining the perfect alignment of your powertrain. Certified genuine Renault...
                                                                                                                                                                                  €94.26€134.65Regular price-30% offPrice
                                                                                                                                                                                  Support Moteur Coté Distribution Mégane 2 RSRight Engine Mount - Genuine Renault Megane 2 RS
                                                                                                                                                                                      Restore stability to your engine block with this genuine Renault right-hand engine mount (timing belt side). Specifically designed for the Renault Megane 2 RS , this hydraulic mount is essential for filtering vibrations and maintaining the perfect alignment of your powertrain. Certified genuine Renault...
                                                                                                                                                                                      €94.26€134.65Regular price-30% offPrice
                                                                                                                                                                                      Sur commande ou en cours de réappro
                                                                                                                                                                                      €241.67 Price
                                                                                                                                                                                      Sur commande ou en cours de réappro
                                                                                                                                                                                      €241.67 Price
                                                                                                                                                                                      Support Moteur Renforcé Megane 2 RS
                                                                                                                                                                                          Support moteur renforcé Vibra Technics pour Megane 2 RS, Convient aux phase 1 et 2 Replace avantageusement les references d'origines suivantes: 8200338381 , 8200549046 , 8200044925 , 8200549237
                                                                                                                                                                                          €241.67Price
                                                                                                                                                                                          Support Moteur Renforcé Megane 2 RS
                                                                                                                                                                                              Support moteur renforcé Vibra Technics pour Megane 2 RS, Convient aux phase 1 et 2 Replace avantageusement les references d'origines suivantes: 8200338381 , 8200549046 , 8200044925 , 8200549237
                                                                                                                                                                                              €241.67Price