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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: Préparation intérieure
Genuine Renault Cooling Fan Motor + Blade Assembly (GMV) - Clio 3 RS & Twingo RSGenuine Renault Cooling Fan Motor + Blade Assembly (GMV) - Clio 3 RS & Twingo RS
      Ensure optimal engine cooling for your Renault Clio 3 RS or Twingo RS with this genuine Renault cooling fan motor + blade assembly (GMV) . A key component of thermal management, it's essential for preventing overheating and maintaining your sports car's performance. Don't compromise your engine's health with a failing cooling system.
      €421.38Price
      Genuine Renault Cooling Fan Motor + Blade Assembly (GMV) - Clio 3 RS & Twingo RSGenuine Renault Cooling Fan Motor + Blade Assembly (GMV) - Clio 3 RS & Twingo RS
          Ensure optimal engine cooling for your Renault Clio 3 RS or Twingo RS with this genuine Renault cooling fan motor + blade assembly (GMV) . A key component of thermal management, it's essential for preventing overheating and maintaining your sports car's performance. Don't compromise your engine's health with a failing cooling system.
          €421.38Price
          En Stock
          €34.04 Price
          En Stock
          €34.04 Price
          Support connecteur Cablage Megane 3 RS et N4Support connecteur Cablage Megane 3 RS et N4
              Support connecteur Cablage Megane 3 RS et N4 Référence: 242300002R
              €34.04Price
              Support connecteur Cablage Megane 3 RS et N4Support connecteur Cablage Megane 3 RS et N4
                  Support connecteur Cablage Megane 3 RS et N4 Référence: 242300002R
                  €34.04Price
                  En Stock
                  €14.68 Price
                  En Stock
                  €14.68 Price
                  Mamelon filtre à huileWater/Oil Heat Exchanger Nipple Clio 3 RS - Original
                      The original Renault water/oil heat exchanger nipple is an essential part to ensure optimal circulation of cooling and oil fluids in your Renault Clio 3 RS . It guarantees a stable engine temperature and optimal performance. We ship worldwide.
                      €14.68Price
                      Mamelon filtre à huileWater/Oil Heat Exchanger Nipple Clio 3 RS - Original
                          The original Renault water/oil heat exchanger nipple is an essential part to ensure optimal circulation of cooling and oil fluids in your Renault Clio 3 RS . It guarantees a stable engine temperature and optimal performance. We ship worldwide.
                          €14.68Price
                          En Stock
                          €576.16 Price
                          En Stock
                          €576.16 Price
                          Vanne boitier d'eau Megane 4 RSRenault Megane 4 RS & GT TCE 205 Water Housing Valve
                              Is your engine struggling to reach its operating temperature? The genuine Renault water housing valve is the essential technical solution for Renault Megane 4 RS and Megane 4 GT TCE 205 owners. This authentic part corrects the frequent symptom of a vehicle that no longer warms up , protecting your engine from premature wear...
                              €576.16Price
                              Vanne boitier d'eau Megane 4 RSRenault Megane 4 RS & GT TCE 205 Water Housing Valve
                                  Is your engine struggling to reach its operating temperature? The genuine Renault water housing valve is the essential technical solution for Renault Megane 4 RS and Megane 4 GT TCE 205 owners. This authentic part corrects the frequent symptom of a vehicle that no longer warms up , protecting your engine from premature wear...
                                  €576.16Price
                                  En Stock
                                  €26.22 Price
                                  En Stock
                                  €26.22 Price
                                  Genuine Renault Spark Plug - Renault Megane 4 RSGenuine Renault Spark Plug - Renault Megane 4 RS
                                      Don't risk restricting the power potential of your 1.8 TCe engine. This genuine Renault spark plug (part number 224015221R ) is the only component certified by the manufacturer to guarantee flawless combustion and prevent destructive high-RPM misfires on your Renault Megane 4 RS , Trophy, or 300. ...
                                      €26.22Price
                                      Genuine Renault Spark Plug - Renault Megane 4 RSGenuine Renault Spark Plug - Renault Megane 4 RS
                                          Don't risk restricting the power potential of your 1.8 TCe engine. This genuine Renault spark plug (part number 224015221R ) is the only component certified by the manufacturer to guarantee flawless combustion and prevent destructive high-RPM misfires on your Renault Megane 4 RS , Trophy, or 300. ...
                                          €26.22Price
                                          Culasse K4M 7701478763Genuine Renault New Bare Cylinder Head - K4M Engine Twingo 2 RS & R1 (Ref. 7701478763)
                                              The genuine Renault new bare cylinder head (reference 7701478763 ) is the solution for major engine problems in your Renault Twingo 2 RS or Twingo R1 . Specifically designed for the K4M engine , this new part is the only option for a reliable repair after overheating or a timing belt failure. Don't risk multiple breakdowns by choosing a used or repaired...
                                              €1,258.87Price
                                              Culasse K4M 7701478763Genuine Renault New Bare Cylinder Head - K4M Engine Twingo 2 RS & R1 (Ref. 7701478763)
                                                  The genuine Renault new bare cylinder head (reference 7701478763 ) is the solution for major engine problems in your Renault Twingo 2 RS or Twingo R1 . Specifically designed for the K4M engine , this new part is the only option for a reliable repair after overheating or a timing belt failure. Don't risk multiple breakdowns by choosing a used or repaired...
                                                  €1,258.87Price
                                                  Genuine Renault Camshaft Sensor Seal – Clio 3 RS (F4R) & Megane 3 RS (F4RT)
                                                      Don't risk an engine breakdown! This Genuine Renault Camshaft Position Sensor Seal is the essential component for your engine's sealing. Specifically designed for the sporty Renault Clio 3 RS (F4R), Clio 3 X85 Cup and Renault Megane 3 RS (F4RT) , it ensures flawless reliability and accurate engine data reading. ...
                                                      €2.95Price
                                                      Genuine Renault Camshaft Sensor Seal – Clio 3 RS (F4R) & Megane 3 RS (F4RT)
                                                          Don't risk an engine breakdown! This Genuine Renault Camshaft Position Sensor Seal is the essential component for your engine's sealing. Specifically designed for the sporty Renault Clio 3 RS (F4R), Clio 3 X85 Cup and Renault Megane 3 RS (F4RT) , it ensures flawless reliability and accurate engine data reading. ...
                                                          €2.95Price
                                                          En Stock
                                                          €649.37 Price
                                                          En Stock
                                                          €649.37 Price
                                                          Genuine Renault UPC 284B69854R | Mégane 3 RSGenuine Renault UPC Unit | Mégane 3 RS
                                                              Avoid leaving an electrical fault to immobilise your Renault Mégane 3 RS . This genuine Renault UPC unit (Protection and Switching Unit) , reference 284B69854R , is designed to manage the protection and distribution of several electrical...
                                                              €649.37Price
                                                              Genuine Renault UPC 284B69854R | Mégane 3 RSGenuine Renault UPC Unit | Mégane 3 RS
                                                                  Avoid leaving an electrical fault to immobilise your Renault Mégane 3 RS . This genuine Renault UPC unit (Protection and Switching Unit) , reference 284B69854R , is designed to manage the protection and distribution of several electrical...
                                                                  €649.37Price
                                                                  En Stock
                                                                  €11.53 Price
                                                                  En Stock
                                                                  €11.53 Price
                                                                  Demi coussinet rouge inf ligne arbre Twingo 2 RS
                                                                      Demi coussinet rouge inf ligne arbre Twingo 2 RS Référence: 8200859991-8200859999-122239522R
                                                                      €11.53Price
                                                                      Demi coussinet rouge inf ligne arbre Twingo 2 RS
                                                                          Demi coussinet rouge inf ligne arbre Twingo 2 RS Référence: 8200859991-8200859999-122239522R
                                                                          €11.53Price
                                                                          Demi coussinet jaune bielle Twingo RS K4M 854
                                                                              Do not let invisible wear condemn your K4M engine block. This genuine Renault connecting rod bearing shell ( Yellow mark) is the critical component required to maintain oil pressure and the integrity of your rotating assembly. Specifically designed for the Renault Twingo 2 RS , as well as the Twingo R1 and Twingo R2...
                                                                              €6.13Price
                                                                              Demi coussinet jaune bielle Twingo RS K4M 854
                                                                                  Do not let invisible wear condemn your K4M engine block. This genuine Renault connecting rod bearing shell ( Yellow mark) is the critical component required to maintain oil pressure and the integrity of your rotating assembly. Specifically designed for the Renault Twingo 2 RS , as well as the Twingo R1 and Twingo R2...
                                                                                  €6.13Price
                                                                                  En Stock
                                                                                  €11.53 Price
                                                                                  En Stock
                                                                                  €11.53 Price
                                                                                  Demi coussinet noir ligne arbre Twingo R2Demi coussinet noir ligne arbre Twingo R2
                                                                                      Demi coussinet noir ligne arbre Twingo R2 Référence: 8200859982-8200019804
                                                                                      €11.53Price
                                                                                      Demi coussinet noir ligne arbre Twingo R2Demi coussinet noir ligne arbre Twingo R2
                                                                                          Demi coussinet noir ligne arbre Twingo R2 Référence: 8200859982-8200019804
                                                                                          €11.53Price
                                                                                          En Stock
                                                                                          €11.53 Price
                                                                                          En Stock
                                                                                          €11.53 Price
                                                                                          Demi coussinet rouge ligne arbre Twingo R2Demi coussinet rouge ligne arbre Twingo R2
                                                                                              Demi coussinet rouge ligne arbre Twingo R2 Référence: 8200859985-8200859995
                                                                                              €11.53Price
                                                                                              Demi coussinet rouge ligne arbre Twingo R2Demi coussinet rouge ligne arbre Twingo R2
                                                                                                  Demi coussinet rouge ligne arbre Twingo R2 Référence: 8200859985-8200859995
                                                                                                  €11.53Price
                                                                                                  Collection de 24 grains de réglage soupapes Twingo R2 195-205
                                                                                                      Collection de 24 grains de réglage soupapes admission Twingo R2 195-205  Référence: 7711167707
                                                                                                      €485.14Price
                                                                                                      Collection de 24 grains de réglage soupapes Twingo R2 195-205
                                                                                                          Collection de 24 grains de réglage soupapes admission Twingo R2 195-205  Référence: 7711167707
                                                                                                          €485.14Price
                                                                                                          Guide jauge huile interne Twingo 2 RS y compris R1 et R2
                                                                                                              Guide jauge huile interne Twingo 2 RS y compris R1 et R2 Élément venant de monter dans le carter cylindre
                                                                                                              €39.78Price
                                                                                                              Guide jauge huile interne Twingo 2 RS y compris R1 et R2
                                                                                                                  Guide jauge huile interne Twingo 2 RS y compris R1 et R2 Élément venant de monter dans le carter cylindre
                                                                                                                  €39.78Price
                                                                                                                  En Stock
                                                                                                                  €1,250.00 Price
                                                                                                                  En Stock
                                                                                                                  €1,250.00 Price
                                                                                                                  Radiateur d'eau latéral Wagner BMW M3 / M4 F80/F82/F83Radiateur d'eau latéral Wagner BMW M3 / M4 F80/F82/F83
                                                                                                                      Radiateur d'eau latéral Wagner BMW M3 / M4 F80/F82/F83 Le moteur turbo S55B30 de 3,0 litres des modèles BMW M3/M4 est équipé d'un circuit de refroidissement par air à suralimentation indirecte....
                                                                                                                      €1,250.00Price
                                                                                                                      Radiateur d'eau latéral Wagner BMW M3 / M4 F80/F82/F83Radiateur d'eau latéral Wagner BMW M3 / M4 F80/F82/F83
                                                                                                                          Radiateur d'eau latéral Wagner BMW M3 / M4 F80/F82/F83 Le moteur turbo S55B30 de 3,0 litres des modèles BMW M3/M4 est équipé d'un circuit de refroidissement par air à suralimentation indirecte....
                                                                                                                          €1,250.00Price
                                                                                                                          Epingle retenue butée de ressort de pompe à huile K4M
                                                                                                                              Epingle retenue butée de ressort de pompe à huile K4M
                                                                                                                              €1.22Price
                                                                                                                              Epingle retenue butée de ressort de pompe à huile K4M
                                                                                                                                  Epingle retenue butée de ressort de pompe à huile K4M
                                                                                                                                  €1.22Price
                                                                                                                                  Dispo selon configuration
                                                                                                                                  €254.69 Price
                                                                                                                                  Dispo selon configuration
                                                                                                                                  €254.69 Price
                                                                                                                                  Pompe à huile assemblée Twingo R2Pompe à huile assemblée Twingo R2
                                                                                                                                    • Pack
                                                                                                                                    Pompe à huile assemblée Twingo R2 Référence: 7711162823
                                                                                                                                    €254.69Price
                                                                                                                                    Pompe à huile assemblée Twingo R2Pompe à huile assemblée Twingo R2
                                                                                                                                      • Pack
                                                                                                                                      Pompe à huile assemblée Twingo R2 Référence: 7711162823
                                                                                                                                      €254.69Price
                                                                                                                                      Agrafe double tuyau d'eau vers radiateur intérieur Twingo 2Agrafe double tuyau d'eau vers radiateur intérieur Twingo 2
                                                                                                                                          Agrafe double tuyau d'eau vers radiateur intérieur Twingo 2 Référence: 7703079857
                                                                                                                                          €2.83Price
                                                                                                                                          Agrafe double tuyau d'eau vers radiateur intérieur Twingo 2Agrafe double tuyau d'eau vers radiateur intérieur Twingo 2
                                                                                                                                              Agrafe double tuyau d'eau vers radiateur intérieur Twingo 2 Référence: 7703079857
                                                                                                                                              €2.83Price
                                                                                                                                              Patte fixation support durites d'eau Megane 3 RS et N4Patte 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 N4Patte 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
                                                                                                                                                      €149.06 Price
                                                                                                                                                      En Stock
                                                                                                                                                      €149.06 Price
                                                                                                                                                      Tuyau dégazage passe cloison / Staubli 2 Twingo R2Tuyau dégazage passe cloison / Staubli 2 Twingo R2
                                                                                                                                                          Tuyau dégazage passe cloison / Staubli 2 Twingo R2
                                                                                                                                                          €149.06Price
                                                                                                                                                          Tuyau dégazage passe cloison / Staubli 2 Twingo R2Tuyau dégazage passe cloison / Staubli 2 Twingo R2
                                                                                                                                                              Tuyau dégazage passe cloison / Staubli 2 Twingo R2
                                                                                                                                                              €149.06Price
                                                                                                                                                              En Stock
                                                                                                                                                              €148.57 Price
                                                                                                                                                              En Stock
                                                                                                                                                              €148.57 Price
                                                                                                                                                              Tuyau remplissage passe cloison / Staubli 1 Twingo R2Tuyau remplissage passe cloison / Staubli 1 Twingo R2
                                                                                                                                                                  Tuyau remplissage passe cloison / Staubli 1 Twingo R2
                                                                                                                                                                  €148.57Price
                                                                                                                                                                  Tuyau remplissage passe cloison / Staubli 1 Twingo R2Tuyau remplissage passe cloison / Staubli 1 Twingo R2
                                                                                                                                                                      Tuyau remplissage passe cloison / Staubli 1 Twingo R2
                                                                                                                                                                      €148.57Price
                                                                                                                                                                      Tuyau entrée radiateur de chauffage Megane 3 RS et N4
                                                                                                                                                                          Tuyau entrée radiateur de chauffage Megane 3 RS et N4 Référence: 924000017R
                                                                                                                                                                          €30.60Price
                                                                                                                                                                          Tuyau entrée radiateur de chauffage Megane 3 RS et N4
                                                                                                                                                                              Tuyau entrée radiateur de chauffage Megane 3 RS et N4 Référence: 924000017R
                                                                                                                                                                              €30.60Price
                                                                                                                                                                              En Stock
                                                                                                                                                                              €115.33 Price
                                                                                                                                                                              En Stock
                                                                                                                                                                              €115.33 Price
                                                                                                                                                                              Tuyau entrée reservoir / passe cloison Twingo R2Tuyau entrée reservoir / passe cloison Twingo R2
                                                                                                                                                                                  Tuyau entrée reservoir / passe cloison Twingo R2
                                                                                                                                                                                  €115.33Price
                                                                                                                                                                                  Tuyau entrée reservoir / passe cloison Twingo R2Tuyau entrée reservoir / passe cloison Twingo R2
                                                                                                                                                                                      Tuyau entrée reservoir / passe cloison Twingo R2
                                                                                                                                                                                      €115.33Price
                                                                                                                                                                                      En Stock
                                                                                                                                                                                      €4.10 Price
                                                                                                                                                                                      En Stock
                                                                                                                                                                                      €4.10 Price
                                                                                                                                                                                      Support inférieur radiateur Megane 3 RS et N4
                                                                                                                                                                                          Support inférieur radiateur Megane 3 RS et N4 Référence: 215450002R
                                                                                                                                                                                          €4.10Price
                                                                                                                                                                                          Support inférieur radiateur Megane 3 RS et N4
                                                                                                                                                                                              Support inférieur radiateur Megane 3 RS et N4 Référence: 215450002R
                                                                                                                                                                                              €4.10Price
                                                                                                                                                                                              Coude réduit 90° sortie de bocal de refroidissement Twingo R2
                                                                                                                                                                                                  Coude réduit 90° sortie de bocal de refroidissement Twingo R2
                                                                                                                                                                                                  €27.98Price
                                                                                                                                                                                                  Coude réduit 90° sortie de bocal de refroidissement Twingo R2
                                                                                                                                                                                                      Coude réduit 90° sortie de bocal de refroidissement Twingo R2
                                                                                                                                                                                                      €27.98Price
                                                                                                                                                                                                      Vis HRDL 5x16 fixation GMV sur radiateur Clio 2 RS et Gr N
                                                                                                                                                                                                          Vis HRDL 5x16 fixation GMV sur radiateur Clio 2 RS et Gr N
                                                                                                                                                                                                          €0.83Price
                                                                                                                                                                                                          Vis HRDL 5x16 fixation GMV sur radiateur Clio 2 RS et Gr N
                                                                                                                                                                                                              Vis HRDL 5x16 fixation GMV sur radiateur Clio 2 RS et Gr N
                                                                                                                                                                                                              €0.83Price
                                                                                                                                                                                                              Vis de fixation boitier d'eau Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                                                                                                  Vis de fixation boitier d'eau Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                                                                                                  €1.44Price
                                                                                                                                                                                                                  Vis de fixation boitier d'eau Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                                                                                                      Vis de fixation boitier d'eau Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                                                                                                                      €1.44Price
                                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                                      €27.42 Price
                                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                                      €27.42 Price
                                                                                                                                                                                                                      Support bague étanchéité Twingo 2 RS et WindSupport bague étanchéité Twingo 2 RS et Wind
                                                                                                                                                                                                                          Support bague étanchéité Twingo 2 RS et Wind Référence: 7700105179
                                                                                                                                                                                                                          €27.42Price
                                                                                                                                                                                                                          Support bague étanchéité Twingo 2 RS et WindSupport bague étanchéité Twingo 2 RS et Wind
                                                                                                                                                                                                                              Support bague étanchéité Twingo 2 RS et Wind Référence: 7700105179
                                                                                                                                                                                                                              €27.42Price
                                                                                                                                                                                                                              Cablage liaison répartiteur sortie coupe circuit Megane N4
                                                                                                                                                                                                                                  Cablage liaison répartiteur sortie coupe circuit Megane N4
                                                                                                                                                                                                                                  €25.66Price
                                                                                                                                                                                                                                  Cablage liaison répartiteur sortie coupe circuit Megane N4
                                                                                                                                                                                                                                      Cablage liaison répartiteur sortie coupe circuit Megane N4
                                                                                                                                                                                                                                      €25.66Price
                                                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                                                      €32.92 Price
                                                                                                                                                                                                                                      En Stock
                                                                                                                                                                                                                                      €32.92 Price
                                                                                                                                                                                                                                      Poussoir contre came rouleau Twingo 2 RS et WindPoussoir contre came rouleau Twingo 2 RS et Wind
                                                                                                                                                                                                                                          Poussoir contre came rouleau Twingo 2 RS et Wind Référence: 8200320561
                                                                                                                                                                                                                                          €32.92Price
                                                                                                                                                                                                                                          Poussoir contre came rouleau Twingo 2 RS et WindPoussoir contre came rouleau Twingo 2 RS et Wind
                                                                                                                                                                                                                                              Poussoir contre came rouleau Twingo 2 RS et Wind Référence: 8200320561
                                                                                                                                                                                                                                              €32.92Price
                                                                                                                                                                                                                                              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