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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: Circuit d'eau
  • Categories: Refroidissement
  • Categories: Support moteur
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
          Câble liaison batterie entrée coupe circuit Megane N4
              Câble liaison batterie entrée coupe circuit Megane N4
              €25.58Price
              Câble liaison batterie entrée coupe circuit Megane N4
                  Câble liaison batterie entrée coupe circuit Megane N4
                  €25.58Price
                  Résistance ventilateur moteur
                      The original Renault engine fan resistor is an essential regulation part to ensure optimal engine cooling on your Renault Clio 3 RS , Renault Twingo 2 RS , or Renault Twingo R1 . Maintain a stable engine temperature and prevent overheating with this original quality resistor. We ship worldwide.
                      €85.20Price
                      Résistance ventilateur moteur
                          The original Renault engine fan resistor is an essential regulation part to ensure optimal engine cooling on your Renault Clio 3 RS , Renault Twingo 2 RS , or Renault Twingo R1 . Maintain a stable engine temperature and prevent overheating with this original quality resistor. We ship worldwide.
                          €85.20Price
                          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
                                  Capteur température d'eau pour boitier d'eau plastique
                                      Capteur température d'eau pour boitier d'eau plastique
                                      €40.15Price
                                      Capteur température d'eau pour boitier d'eau plastique
                                          Capteur température d'eau pour boitier d'eau plastique
                                          €40.15Price
                                          Patte fixation support durites d'eau Megane 3 RS et N4
                                              Patte fixation support durites d'eau Megane 3 RS et N4
                                              €6.37Price
                                              Patte fixation support durites d'eau Megane 3 RS et N4
                                                  Patte fixation support durites d'eau Megane 3 RS et N4
                                                  €6.37Price
                                                  En Stock
                                                  €14.10 Price
                                                  En Stock
                                                  €14.10 Price
                                                  Patte supérieure gauche fixation radiateur Twingo RS
                                                      Patte supérieure gauche fixation radiateur Twingo RS
                                                      €14.10Price
                                                      Patte supérieure gauche fixation radiateur Twingo RS
                                                          Patte supérieure gauche fixation radiateur Twingo RS
                                                          €14.10Price
                                                          Kit joint torique pour régulateur de pression de rampe
                                                              Kit joint torique pour régulateur de pression de rampe
                                                              €13.08Price
                                                              Kit joint torique pour régulateur de pression de rampe
                                                                  Kit joint torique pour régulateur de pression de rampe
                                                                  €13.08Price
                                                                  Tuyau eau entrée pompe Megane 3 RS et N4
                                                                      Genuine Renault Water Pump Inlet Hose for Renault Clio 3 RS, Megane 2 RS, and Megane 3 RS. Essential part for optimal engine cooling. Renault quality and reliability.
                                                                      €81.02Price
                                                                      Tuyau eau entrée pompe Megane 3 RS et N4
                                                                          Genuine Renault Water Pump Inlet Hose for Renault Clio 3 RS, Megane 2 RS, and Megane 3 RS. Essential part for optimal engine cooling. Renault quality and reliability.
                                                                          €81.02Price
                                                                          Borne positive batterie Megane 3 RS et N4
                                                                              Ensure perfect electrical conductivity with this genuine Renault positive battery terminal . Specifically designed for the Renault Megane 3 RS and Megane N4 , this battery clamp guarantees reliable starting and a stable power supply for your onboard electronic equipment, even under intensive use. ...
                                                                              €10.58Price
                                                                              Borne positive batterie Megane 3 RS et N4
                                                                                  Ensure perfect electrical conductivity with this genuine Renault positive battery terminal . Specifically designed for the Renault Megane 3 RS and Megane N4 , this battery clamp guarantees reliable starting and a stable power supply for your onboard electronic equipment, even under intensive use. ...
                                                                                  €10.58Price
                                                                                  Tuyau entrée radiateur chauffage Megane 3 RS et N4
                                                                                      Don't risk a costly breakdown! This cooling hose for heater radiator inlet , an original Renault part , is specifically designed for your Renault Megane 3 RS . It replaces the hose located at the engine...
                                                                                      €56.16Price
                                                                                      Tuyau entrée radiateur chauffage Megane 3 RS et N4
                                                                                          Don't risk a costly breakdown! This cooling hose for heater radiator inlet , an original Renault part , is specifically designed for your Renault Megane 3 RS . It replaces the hose located at the engine...
                                                                                          €56.16Price
                                                                                          Câble alimentation protection batterie Megane 3 RS et N4
                                                                                              Câble alimentation protection batterie Megane 3 RS et N4
                                                                                              €96.72Price
                                                                                              Câble alimentation protection batterie Megane 3 RS et N4
                                                                                                  Câble alimentation protection batterie Megane 3 RS et N4
                                                                                                  €96.72Price
                                                                                                  En Stock
                                                                                                  €126.80 €181.14 Regular price -30% off Price
                                                                                                  En Stock
                                                                                                  €126.80 €181.14 Regular price -30% off Price
                                                                                                  GMV (Ventilateur) type chauffo Twingo RS et R1
                                                                                                      GMV (Ventilateur) type chauffo Twingo RS et R1 Référence: 7711162740 - 8200066098 Egalement compatible avec d'autres motorisations
                                                                                                      €126.80€181.14Regular price-30% offPrice
                                                                                                      GMV (Ventilateur) type chauffo Twingo RS et R1
                                                                                                          GMV (Ventilateur) type chauffo Twingo RS et R1 Référence: 7711162740 - 8200066098 Egalement compatible avec d'autres motorisations
                                                                                                          €126.80€181.14Regular price-30% offPrice
                                                                                                          En Stock
                                                                                                          €343.21 Price
                                                                                                          En Stock
                                                                                                          €343.21 Price
                                                                                                          Modine (échangeur eau huile) Clio 16S et Williams
                                                                                                              Modine (echangeur eau huile) Clio 16S et Williams
                                                                                                              €343.21Price
                                                                                                              Modine (échangeur eau huile) Clio 16S et Williams
                                                                                                                  Modine (echangeur eau huile) Clio 16S et Williams
                                                                                                                  €343.21Price
                                                                                                                  En Stock
                                                                                                                  €32.92 Price
                                                                                                                  En Stock
                                                                                                                  €32.92 Price
                                                                                                                  Rampe injection Clio 2 RS 172 phase 2 et 182
                                                                                                                      Fuel injection rail Renault Clio 2 RS Phase 2 & 3 Give your Renault Clio 2 RS Phase 2 or 3 an optimum fuel supply with the genuine Renault injection rail! Designed for sports driving enthusiasts, this rail guarantees a constant and precise fuel flow, even at high engine speeds, for optimum performance and an unrivalled driving experience. ...
                                                                                                                      €32.92Price
                                                                                                                      Rampe injection Clio 2 RS 172 phase 2 et 182
                                                                                                                          Fuel injection rail Renault Clio 2 RS Phase 2 & 3 Give your Renault Clio 2 RS Phase 2 or 3 an optimum fuel supply with the genuine Renault injection rail! Designed for sports driving enthusiasts, this rail guarantees a constant and precise fuel flow, even at high engine speeds, for optimum performance and an unrivalled driving experience. ...
                                                                                                                          €32.92Price
                                                                                                                          En Stock
                                                                                                                          €202.54 Price
                                                                                                                          En Stock
                                                                                                                          €202.54 Price
                                                                                                                          Ecope supérieure de radiateur Clio R3 "MAXI"
                                                                                                                              Ecope supérieure de radiateur Clio R3 "MAXI" Ref: 7711160688
                                                                                                                              €202.54Price
                                                                                                                              Ecope supérieure de radiateur Clio R3 "MAXI"
                                                                                                                                  Ecope supérieure de radiateur Clio R3 "MAXI" Ref: 7711160688
                                                                                                                                  €202.54Price
                                                                                                                                  Calorstat Clio 3 RS 75°
                                                                                                                                      Control your engine's temperature with this genuine Renault thermostat with an opening temperature of 75°C . Specifically designed for the Clio 3 RS , it also mounts without modification on the Clio 2 RS , allowing the cooling circuit to open more quickly. This part is essential for limiting temperature spikes and preventing the risk of engine overheating ...
                                                                                                                                      €78.18Price
                                                                                                                                      Calorstat Clio 3 RS 75°
                                                                                                                                          Control your engine's temperature with this genuine Renault thermostat with an opening temperature of 75°C . Specifically designed for the Clio 3 RS , it also mounts without modification on the Clio 2 RS , allowing the cooling circuit to open more quickly. This part is essential for limiting temperature spikes and preventing the risk of engine overheating ...
                                                                                                                                          €78.18Price
                                                                                                                                          En Stock
                                                                                                                                          €122.62 Price
                                                                                                                                          En Stock
                                                                                                                                          €122.62 Price
                                                                                                                                          Batterie sèche 12V-24Ah
                                                                                                                                              Batterie sèche 12V-24Ah Référence: 7711127895 Durée de vie en floating jusqu'à 5 ans Batterie VRLA d'usage général Grilles plomb-calcium pour une durée de vie améliorée Construction en fibres de verre microporeuses sans acide libre Recombinaison de gaz Fabriqué dans le monde entier Bonne récupération d'une décharge...
                                                                                                                                              €122.62Price
                                                                                                                                              Batterie sèche 12V-24Ah
                                                                                                                                                  Batterie sèche 12V-24Ah Référence: 7711127895 Durée de vie en floating jusqu'à 5 ans Batterie VRLA d'usage général Grilles plomb-calcium pour une durée de vie améliorée Construction en fibres de verre microporeuses sans acide libre Recombinaison de gaz Fabriqué dans le monde entier Bonne récupération d'une décharge...
                                                                                                                                                  €122.62Price
                                                                                                                                                  En Stock
                                                                                                                                                  €50.73 €72.47 Regular price -30% off Price
                                                                                                                                                  En Stock
                                                                                                                                                  €50.73 €72.47 Regular price -30% off Price
                                                                                                                                                  Calorstat Clio 2 RS - Megane 2 RSGenuine Renault Thermostat - Megane 2 RS, Clio 2 RS & Cup
                                                                                                                                                      Optimize your engine's thermal regulation with this genuine Renault thermostat . Specifically designed for the Renault Megane 2 RS and Clio 2 RS , this calorstat guarantees rapid warm-up and protection against overheating during intense driving conditions. Certified genuine Renault...
                                                                                                                                                      €50.73€72.47Regular price-30% offPrice
                                                                                                                                                      Calorstat Clio 2 RS - Megane 2 RSGenuine Renault Thermostat - Megane 2 RS, Clio 2 RS & Cup
                                                                                                                                                          Optimize your engine's thermal regulation with this genuine Renault thermostat . Specifically designed for the Renault Megane 2 RS and Clio 2 RS , this calorstat guarantees rapid warm-up and protection against overheating during intense driving conditions. Certified genuine Renault...
                                                                                                                                                          €50.73€72.47Regular price-30% offPrice
                                                                                                                                                          En Stock
                                                                                                                                                          €37.52 Price
                                                                                                                                                          En Stock
                                                                                                                                                          €37.52 Price
                                                                                                                                                          Raccord 90° de rampe d'injection Clio Gr N
                                                                                                                                                              Secure your fuel system with this official RENAULT SPORT 90° fuel rail fitting . A key component from the competition catalog for the Renault Clio 2 RS Group N , this fitting ensures constant flow and absolute sealing under pressure. Do not let a standard component compromise the safety of your racing setup or your track day...
                                                                                                                                                              €37.52Price
                                                                                                                                                              Raccord 90° de rampe d'injection Clio Gr N
                                                                                                                                                                  Secure your fuel system with this official RENAULT SPORT 90° fuel rail fitting . A key component from the competition catalog for the Renault Clio 2 RS Group N , this fitting ensures constant flow and absolute sealing under pressure. Do not let a standard component compromise the safety of your racing setup or your track day...
                                                                                                                                                                  €37.52Price
                                                                                                                                                                  Durite modine/radiateur Clio 2 Cup
                                                                                                                                                                      The Renault Sport water hose (ref. 7711154249 ) is an essential part to ensure optimal coolant circulation between the water/oil heat exchanger and the radiator of your Renault Clio 2 X65 Cup . It guarantees a stable engine temperature and optimal performance.
                                                                                                                                                                      €77.62Price
                                                                                                                                                                      Durite modine/radiateur Clio 2 Cup
                                                                                                                                                                          The Renault Sport water hose (ref. 7711154249 ) is an essential part to ensure optimal coolant circulation between the water/oil heat exchanger and the radiator of your Renault Clio 2 X65 Cup . It guarantees a stable engine temperature and optimal performance.
                                                                                                                                                                          €77.62Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €22.74 Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €22.74 Price
                                                                                                                                                                          Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                                                                                                                                                                              Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                                                                                                                                                                              €22.74Price
                                                                                                                                                                              Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                                                                                                                                                                                  Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                                                                                                                                                                                  €22.74Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €178.04 Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €178.04 Price
                                                                                                                                                                                  Pompe à Essence Clio 2 RS et X65 Cup
                                                                                                                                                                                      Fuel Gauge/Pump Module Renault Clio 2 RS (Original) Original Renault fuel gauge/pump module for Clio 2 RS Phase 2/3 (without regulator on rail) and Clio 2 X65 Cup. Ensures reliable fuel supply. Discover the compatible fixing ring and gasket at the bottom of the page.
                                                                                                                                                                                      €178.04Price
                                                                                                                                                                                      Pompe à Essence Clio 2 RS et X65 Cup
                                                                                                                                                                                          Fuel Gauge/Pump Module Renault Clio 2 RS (Original) Original Renault fuel gauge/pump module for Clio 2 RS Phase 2/3 (without regulator on rail) and Clio 2 X65 Cup. Ensures reliable fuel supply. Discover the compatible fixing ring and gasket at the bottom of the page.
                                                                                                                                                                                          €178.04Price