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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: Kit Allègement
  • Categories: Préparation intérieure
En Stock
€134.58 Price
En Stock
€134.58 Price
Capteur arbre à cames (déphasage) Twingo 2 RS y compris R1 et R2Camshaft Timing Solenoid – Twingo 2 RS R1 R2
      Camshaft timing solenoid valve designed for the Renault Twingo 2 RS , including Twingo R1 and Twingo R2 competition versions. It plays an important role in controlling the engine's variable camshaft timing system. Suitable for replacing a worn or faulty...
      €134.58Price
      Capteur arbre à cames (déphasage) Twingo 2 RS y compris R1 et R2Camshaft Timing Solenoid – Twingo 2 RS R1 R2
          Camshaft timing solenoid valve designed for the Renault Twingo 2 RS , including Twingo R1 and Twingo R2 competition versions. It plays an important role in controlling the engine's variable camshaft timing system. Suitable for replacing a worn or faulty...
          €134.58Price
          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
                                          Accessory Belt for AC Delete Kit - Renault Mégane 4 RS
                                              This Adapted Accessory Belt is a critical component for converting to an Air Conditioning Delete Kit on your Renault Mégane 4 RS . Its dimension is precisely defined to compensate for the removal of the AC compressor. This superior quality belt is essential for...
                                              €29.34Price
                                              Accessory Belt for AC Delete Kit - Renault Mégane 4 RS
                                                  This Adapted Accessory Belt is a critical component for converting to an Air Conditioning Delete Kit on your Renault Mégane 4 RS . Its dimension is precisely defined to compensate for the removal of the AC compressor. This superior quality belt is essential for...
                                                  €29.34Price
                                                  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
                                                          En Stock
                                                          €25.25 Price
                                                          En Stock
                                                          €25.25 Price
                                                          Accessory Belt for AC Delete Kit - Alpine A110
                                                              This Specific Accessory Belt is an essential component when installing an Air Conditioning Delete Kit on your Alpine A110 . Its length is adjusted to bypass the air conditioning compressor that has been removed. A high-quality part, it guarantees the correct...
                                                              €25.25Price
                                                              Accessory Belt for AC Delete Kit - Alpine A110
                                                                  This Specific Accessory Belt is an essential component when installing an Air Conditioning Delete Kit on your Alpine A110 . Its length is adjusted to bypass the air conditioning compressor that has been removed. A high-quality part, it guarantees the correct...
                                                                  €25.25Price
                                                                  Specific Accessory Belt for A/C Delete Kit Renault Clio 4 RS
                                                                      The Optimiz Access Specific Accessory Belt is the essential part required to finalize the installation of the A/C Delete Kit on your Renault Clio 4 RS . Due to the change in the path and distance between the pulleys following the removal of the air conditioning compressor, the original belt can...
                                                                      €29.34Price
                                                                      Specific Accessory Belt for A/C Delete Kit Renault Clio 4 RS
                                                                          The Optimiz Access Specific Accessory Belt is the essential part required to finalize the installation of the A/C Delete Kit on your Renault Clio 4 RS . Due to the change in the path and distance between the pulleys following the removal of the air conditioning compressor, the original belt can...
                                                                          €29.34Price
                                                                          Gicleur Piston 1-3 Clio 2 RS 182 et Clio 3 RS
                                                                              Protect the lower F4R engine of your Clio 2 RS 182, Clio 3 RS, or Megane 2 RS with this genuine Renault oil sprayer (oil jet) for cylinders 1 and 3. A critical component for piston cooling and lubrication, it guarantees the reliability and longevity of your engine. Don't neglect the protection of your F4R.
                                                                              €14.65Price
                                                                              Gicleur Piston 1-3 Clio 2 RS 182 et Clio 3 RS
                                                                                  Protect the lower F4R engine of your Clio 2 RS 182, Clio 3 RS, or Megane 2 RS with this genuine Renault oil sprayer (oil jet) for cylinders 1 and 3. A critical component for piston cooling and lubrication, it guarantees the reliability and longevity of your engine. Don't neglect the protection of your F4R.
                                                                                  €14.65Price
                                                                                  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
                                                                                                  €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
                                                                                                          €178.20 Price
                                                                                                          En Stock
                                                                                                          €178.20 Price
                                                                                                          Plaque reniflard Clio 2 RS 172
                                                                                                              Plaque de reniflard taillé massé venant en lieu et place de la plaque d'origine Ajout un raccord Dash permettant de venir connecter directement un recuperateur de vapeur d'huile. Cette piece est un serieux atout pour les véhicules ayant modifié le collecteur d'admission d'origine. Produit a completer avec un joint Loctite 5980.
                                                                                                              €178.20Price
                                                                                                              Plaque reniflard Clio 2 RS 172
                                                                                                                  Plaque de reniflard taillé massé venant en lieu et place de la plaque d'origine Ajout un raccord Dash permettant de venir connecter directement un recuperateur de vapeur d'huile. Cette piece est un serieux atout pour les véhicules ayant modifié le collecteur d'admission d'origine. Produit a completer avec un joint Loctite 5980.
                                                                                                                  €178.20Price
                                                                                                                  En Stock
                                                                                                                  €11.53 Price
                                                                                                                  En Stock
                                                                                                                  €11.53 Price
                                                                                                                  Demi coussinet rainurés jaune vilebrequin K4M 854Demi coussinet rainurés jaune vilebrequin K4M 854
                                                                                                                      Demi coussinet rainurés jaune vilebrequin K4M 854
                                                                                                                      €11.53Price
                                                                                                                      Demi coussinet rainurés jaune vilebrequin K4M 854Demi coussinet rainurés jaune vilebrequin K4M 854
                                                                                                                          Demi coussinet rainurés jaune vilebrequin K4M 854
                                                                                                                          €11.53Price
                                                                                                                          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
                                                                                                                                          Vis de fixation poulie folle clim Clio 3 RS - Megane 2 RS - Megane 3 RSVis de fixation poulie folle clim Clio 3 RS - Megane 2 RS - Megane 3 RS
                                                                                                                                              Vis de fixation poulie folle clim Clio 3 RS - Megane 2 RS - Megane 3 RS. Vendue à l'unité - 3 Vis sont nécessaires
                                                                                                                                              €2.34Price
                                                                                                                                              Vis de fixation poulie folle clim Clio 3 RS - Megane 2 RS - Megane 3 RSVis de fixation poulie folle clim Clio 3 RS - Megane 2 RS - Megane 3 RS
                                                                                                                                                  Vis de fixation poulie folle clim Clio 3 RS - Megane 2 RS - Megane 3 RS. Vendue à l'unité - 3 Vis sont nécessaires
                                                                                                                                                  €2.34Price
                                                                                                                                                  En Stock
                                                                                                                                                  €1,326.07 Price
                                                                                                                                                  En Stock
                                                                                                                                                  €1,326.07 Price
                                                                                                                                                  AAC Admission loi 286TR2A2 Twingo R2 205
                                                                                                                                                      AAC Admission loi 286TR2A2 Twingo R2 205 Référence: 7711167674
                                                                                                                                                      €1,326.07Price
                                                                                                                                                      AAC Admission loi 286TR2A2 Twingo R2 205
                                                                                                                                                          AAC Admission loi 286TR2A2 Twingo R2 205 Référence: 7711167674
                                                                                                                                                          €1,326.07Price
                                                                                                                                                          Genuine Renault Sport throttle position potentiometer for Twingo R2, Clio R3, and X85 Cup racing engines.
                                                                                                                                                              Do not risk unpredictable ignition cuts during a rally stage, a sudden loss of immediate throttle response, or an abrupt limp-mode activation that freezes your lap times on track. The genuine Potentiomètre papillon Twingo R2, Clio R3 et X85 Cup is the official factory-spec...
                                                                                                                                                              €138.05Price
                                                                                                                                                              Genuine Renault Sport throttle position potentiometer for Twingo R2, Clio R3, and X85 Cup racing engines.
                                                                                                                                                                  Do not risk unpredictable ignition cuts during a rally stage, a sudden loss of immediate throttle response, or an abrupt limp-mode activation that freezes your lap times on track. The genuine Potentiomètre papillon Twingo R2, Clio R3 et X85 Cup is the official factory-spec...
                                                                                                                                                                  €138.05Price
                                                                                                                                                                  Electrovanne décalage arbre à cames (dephasage) Clio 3 RS phase 2 et Cup X85 et Megane 3 RS
                                                                                                                                                                      Camshaft Phasing Solenoid Valve : genuine RENAULT part essential for the proper function and engine performance of your Renault Clio 3 RS Phase 2 and Renault Megane 3 RS . A faulty component leads to power loss and unstable idling. Ensures optimal...
                                                                                                                                                                      €202.56Price
                                                                                                                                                                      Electrovanne décalage arbre à cames (dephasage) Clio 3 RS phase 2 et Cup X85 et Megane 3 RS
                                                                                                                                                                          Camshaft Phasing Solenoid Valve : genuine RENAULT part essential for the proper function and engine performance of your Renault Clio 3 RS Phase 2 and Renault Megane 3 RS . A faulty component leads to power loss and unstable idling. Ensures optimal...
                                                                                                                                                                          €202.56Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €105.52 Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €105.52 Price
                                                                                                                                                                          Pompe à eau K4M Twingo Rs R1 et R2
                                                                                                                                                                              Pompe à eau K4M Twingo RS R1 et R2 Référence: 8200582675 Pompe à eau équipé de la poulie métallique, et non de la version en plastique moins fiable.
                                                                                                                                                                              €105.52Price
                                                                                                                                                                              Pompe à eau K4M Twingo Rs R1 et R2
                                                                                                                                                                                  Pompe à eau K4M Twingo RS R1 et R2 Référence: 8200582675 Pompe à eau équipé de la poulie métallique, et non de la version en plastique moins fiable.
                                                                                                                                                                                  €105.52Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €211.80 Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €211.80 Price
                                                                                                                                                                                  Pompe à huileRenault Sport Oil Pump - Clio 2/3 RS & Megane 2/3 RS
                                                                                                                                                                                      Secure your engine block's lubrication with this high-performance oil pump for Renault 2.0L engines. Essential for maintaining constant oil pressure, it is compatible with Clio 2 RS , Clio 3 RS , as well as X65 Cup ,...
                                                                                                                                                                                      €211.80Price
                                                                                                                                                                                      Pompe à huileRenault Sport Oil Pump - Clio 2/3 RS & Megane 2/3 RS
                                                                                                                                                                                          Secure your engine block's lubrication with this high-performance oil pump for Renault 2.0L engines. Essential for maintaining constant oil pressure, it is compatible with Clio 2 RS , Clio 3 RS , as well as X65 Cup ,...
                                                                                                                                                                                          €211.80Price
                                                                                                                                                                                          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
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €47.34 Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €47.34 Price
                                                                                                                                                                                                  Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2
                                                                                                                                                                                                      Genuine Renault Exhaust Valve - Twingo 2 RS, Twingo R1, Twingo R2 160hp Authentic Renault exhaust valve, ensuring optimal sealing and performance. Specific replacement part for Renault Twingo 2 RS, Twingo R1, and Twingo R2 160hp models. Contributes to proper engine operation and efficient exhaust gas...
                                                                                                                                                                                                      €47.34Price
                                                                                                                                                                                                      Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2
                                                                                                                                                                                                          Genuine Renault Exhaust Valve - Twingo 2 RS, Twingo R1, Twingo R2 160hp Authentic Renault exhaust valve, ensuring optimal sealing and performance. Specific replacement part for Renault Twingo 2 RS, Twingo R1, and Twingo R2 160hp models. Contributes to proper engine operation and efficient exhaust gas...
                                                                                                                                                                                                          €47.34Price
                                                                                                                                                                                                          Clio 2 RS (X65 Cup, Gr N) Accelerator Cable Clip - OriginalClio 2 RS (X65 Cup, Gr N) Accelerator Cable Clip - Original
                                                                                                                                                                                                              The original Renault accelerator cable clip is an essential fastening part to ensure precise and reliable accelerator operation on your Renault Clio 2 RS , Clio 2 X65 Cup , or Clio 2 Gr N . Ensure a secure connection and optimal accelerator response with this original quality clip. We ship worldwide.
                                                                                                                                                                                                              €2.20Price
                                                                                                                                                                                                              Clio 2 RS (X65 Cup, Gr N) Accelerator Cable Clip - OriginalClio 2 RS (X65 Cup, Gr N) Accelerator Cable Clip - Original
                                                                                                                                                                                                                  The original Renault accelerator cable clip is an essential fastening part to ensure precise and reliable accelerator operation on your Renault Clio 2 RS , Clio 2 X65 Cup , or Clio 2 Gr N . Ensure a secure connection and optimal accelerator response with this original quality clip. We ship worldwide.
                                                                                                                                                                                                                  €2.20Price
                                                                                                                                                                                                                  Fuel Pump Locking Ring and Seal Kit - Renault Sport Range
                                                                                                                                                                                                                      Ensure a leak-free fuel system with this genuine Renault fuel pump locking ring and seal kit . Essential for any intervention on the fuel sender unit, this kit prevents leaks and persistent fuel odors inside your sports vehicle's cabin. Includes the locking nut (ring) and the...
                                                                                                                                                                                                                      €55.88Price
                                                                                                                                                                                                                      Fuel Pump Locking Ring and Seal Kit - Renault Sport Range
                                                                                                                                                                                                                          Ensure a leak-free fuel system with this genuine Renault fuel pump locking ring and seal kit . Essential for any intervention on the fuel sender unit, this kit prevents leaks and persistent fuel odors inside your sports vehicle's cabin. Includes the locking nut (ring) and the...
                                                                                                                                                                                                                          €55.88Price
                                                                                                                                                                                                                          Pompe à eau Origine Renault Clio 3 RS - Megane 2 RS - Megane 3 RSGenuine OEM Water Pump - Renault Clio 3 RS / Megane 2/3 RS
                                                                                                                                                                                                                              Safeguard the mechanical reliability and thermal efficiency of your high-performance engine with the Genuine Renault Sport Water Pump for F4R and F4Rt engines . This authentic factory replacement component is essential to ensure optimum coolant circulation under intense road...
                                                                                                                                                                                                                              €117.43Price
                                                                                                                                                                                                                              Pompe à eau Origine Renault Clio 3 RS - Megane 2 RS - Megane 3 RSGenuine OEM Water Pump - Renault Clio 3 RS / Megane 2/3 RS
                                                                                                                                                                                                                                  Safeguard the mechanical reliability and thermal efficiency of your high-performance engine with the Genuine Renault Sport Water Pump for F4R and F4Rt engines . This authentic factory replacement component is essential to ensure optimum coolant circulation under intense road...
                                                                                                                                                                                                                                  €117.43Price