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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: Circuit d'eau
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En Stock
€228.91 €457.81 Regular price -50% off Price
En Stock
€228.91 €457.81 Regular price -50% off Price
Genuine factory engine cooling fan motor (GMV) assembly for Renault Megane 2 RS models.Genuine Engine Cooling Fan Motor GMV | Renault Megane 2 RS
    • On sale!
    Do not risk a catastrophic engine overheat during your track day sessions, a blown cylinder head gasket while idling in heavy traffic, or permanent thermal destruction of your 2.0L Turbo F4Rt block. The genuine Moteur de Ventilateur ORIGINE (GMV) Renault Mégane 2 RS is the...
    €228.91€457.81Regular price-50% offPrice
    Genuine factory engine cooling fan motor (GMV) assembly for Renault Megane 2 RS models.Genuine Engine Cooling Fan Motor GMV | Renault Megane 2 RS
      • On sale!
      Do not risk a catastrophic engine overheat during your track day sessions, a blown cylinder head gasket while idling in heavy traffic, or permanent thermal destruction of your 2.0L Turbo F4Rt block. The genuine Moteur de Ventilateur ORIGINE (GMV) Renault Mégane 2 RS is the...
      €228.91€457.81Regular price-50% offPrice
      En Stock
      €2.82 Price
      En Stock
      €2.82 Price
      Genuine Renault 20.5mm Core Plug - Ref 7703075147Genuine Renault 20.5mm Core Plug - Ref 7703075147
          Ensure the perfect sealing and protection of your engine block with this genuine Renault core plug (freeze plug) with a 20.5mm diameter . This authentic part is essential during any engine rebuild to prevent coolant leaks. Manufacturer reference: 7703075147 . Precise 20.5mm...
          €2.82Price
          Genuine Renault 20.5mm Core Plug - Ref 7703075147Genuine Renault 20.5mm Core Plug - Ref 7703075147
              Ensure the perfect sealing and protection of your engine block with this genuine Renault core plug (freeze plug) with a 20.5mm diameter . This authentic part is essential during any engine rebuild to prevent coolant leaks. Manufacturer reference: 7703075147 . Precise 20.5mm...
              €2.82Price
              Soupape échappement Inconel F4R 30mmSoupape échappement Inconel F4R 30mm
                  Soupape échappement Inconel F4R 30mm Attention +1mm par rapport à l'origine Head Diam:  30.00mm...
                  €52.42Price
                  Soupape échappement Inconel F4R 30mmSoupape échappement Inconel F4R 30mm
                      Soupape échappement Inconel F4R 30mm Attention +1mm par rapport à l'origine Head Diam:  30.00mm...
                      €52.42Price
                      Entretoise galet enrouleur courroie distribution Twingo 2 RSEntretoise galet enrouleur courroie distribution Twingo 2 RS
                          Entretoise galet enrouleur courroie distribution Twingo 2 RS Référence: 7700109369-119313155R
                          €4.27Price
                          Entretoise galet enrouleur courroie distribution Twingo 2 RSEntretoise galet enrouleur courroie distribution Twingo 2 RS
                              Entretoise galet enrouleur courroie distribution Twingo 2 RS Référence: 7700109369-119313155R
                              €4.27Price
                              En Stock
                              €1.08 Price
                              En Stock
                              €1.08 Price
                              Agrafe support sonde lambda Megane 3 RS et N4Agrafe support sonde lambda Megane 3 RS et N4
                                  Agrafe support sonde lambda Megane 3 RS et N4 Référence: 7703079452
                                  €1.08Price
                                  Agrafe support sonde lambda Megane 3 RS et N4Agrafe support sonde lambda Megane 3 RS et N4
                                      Agrafe support sonde lambda Megane 3 RS et N4 Référence: 7703079452
                                      €1.08Price
                                      En Stock
                                      €137.94 Price
                                      En Stock
                                      €137.94 Price
                                      Outil pose gicleur d'huile piston F4R
                                          Optimize the installation of your lubrication system with the genuine Renault oil jet installation tool. Designed for F4R engines in Renault Clio 2 & 3 RS and Megane 2 & 3 RS, this tool ensures a perfect fit and optimal precision, guaranteeing reliable and durable engine performance.
                                          €137.94Price
                                          Outil pose gicleur d'huile piston F4R
                                              Optimize the installation of your lubrication system with the genuine Renault oil jet installation tool. Designed for F4R engines in Renault Clio 2 & 3 RS and Megane 2 & 3 RS, this tool ensures a perfect fit and optimal precision, guaranteeing reliable and durable engine performance.
                                              €137.94Price
                                              Support electrovanne purge canister Megane 3 RS et N4Support electrovanne purge canister Megane 3 RS et N4
                                                  Support electrovanne purge canister Megane 3 RS et N4 Référence: 8200929275
                                                  €7.72Price
                                                  Support electrovanne purge canister Megane 3 RS et N4Support electrovanne purge canister Megane 3 RS et N4
                                                      Support electrovanne purge canister Megane 3 RS et N4 Référence: 8200929275
                                                      €7.72Price
                                                      Joint de flasque support bague de vilebrequin Twingo RS et Wind
                                                          Joint de flasque support bague de vilebrequin Twingo RS et Wind Référence: 8200182129
                                                          €9.72Price
                                                          Joint de flasque support bague de vilebrequin Twingo RS et Wind
                                                              Joint de flasque support bague de vilebrequin Twingo RS et Wind Référence: 8200182129
                                                              €9.72Price
                                                              En Stock
                                                              €17.83 Price
                                                              En Stock
                                                              €17.83 Price
                                                              Soupape admission Twingo 2 RS
                                                                  The original Renault intake valve is an essential part to optimize airflow in the engine of your Renault Twingo 2 RS . It guarantees optimal engine performance and efficient combustion. We ship worldwide.
                                                                  €17.83Price
                                                                  Soupape admission Twingo 2 RS
                                                                      The original Renault intake valve is an essential part to optimize airflow in the engine of your Renault Twingo 2 RS . It guarantees optimal engine performance and efficient combustion. We ship worldwide.
                                                                      €17.83Price
                                                                      En Stock
                                                                      €81.02 €202.56 Regular price -60% off Price
                                                                      En Stock
                                                                      €81.02 €202.56 Regular price -60% off Price
                                                                      Electrovanne décalage (dephaseur) arbre à cames Clio 2 RSGenuine Renault Clio 2 RS 2.0L F4R VVT Solenoid (8200831629)
                                                                          Do not risk power loss and unstable idling on your Clio 2 RS . The Genuine Renault VVT Solenoid (Part Number 8200831629 ) is essential for the proper functioning of your 2.0L 16V F4R engine . This genuine part guarantees the precise management of variable valve timing ,...
                                                                          €81.02€202.56Regular price-60% offPrice
                                                                          Electrovanne décalage (dephaseur) arbre à cames Clio 2 RSGenuine Renault Clio 2 RS 2.0L F4R VVT Solenoid (8200831629)
                                                                              Do not risk power loss and unstable idling on your Clio 2 RS . The Genuine Renault VVT Solenoid (Part Number 8200831629 ) is essential for the proper functioning of your 2.0L 16V F4R engine . This genuine part guarantees the precise management of variable valve timing ,...
                                                                              €81.02€202.56Regular price-60% offPrice
                                                                              En Stock
                                                                              €164.00 Price
                                                                              En Stock
                                                                              €164.00 Price
                                                                              Support Alternateur et pompe de DA 7700273712Support Alternateur et pompe de DA 7700273712
                                                                                  Support Alternateur et pompe de DA 7700273712 Produit destiné à la Clio 2 Cup Rally equipé de 1.6 16v Ne convient pas au F4R
                                                                                  €164.00Price
                                                                                  Support Alternateur et pompe de DA 7700273712Support Alternateur et pompe de DA 7700273712
                                                                                      Support Alternateur et pompe de DA 7700273712 Produit destiné à la Clio 2 Cup Rally equipé de 1.6 16v Ne convient pas au F4R
                                                                                      €164.00Price
                                                                                      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
                                                                                              En Stock
                                                                                              €3.55 Price
                                                                                              En Stock
                                                                                              €3.55 Price
                                                                                              Demi-cône de soupape admission EVO 2013 Twingo R2
                                                                                                  Demi-cône de soupape admission EVO 2013 Twingo R2 Référence: 7711167705
                                                                                                  €3.55Price
                                                                                                  Demi-cône de soupape admission EVO 2013 Twingo R2
                                                                                                      Demi-cône de soupape admission EVO 2013 Twingo R2 Référence: 7711167705
                                                                                                      €3.55Price
                                                                                                      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
                                                                                                              €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
                                                                                                                      Couvercle protection boitier éléctronique Megane 3 RS et N4
                                                                                                                          Couvercle protection boitier éléctronique Megane 3 RS et N4
                                                                                                                          €25.51Price
                                                                                                                          Couvercle protection boitier éléctronique Megane 3 RS et N4
                                                                                                                              Couvercle protection boitier éléctronique Megane 3 RS et N4
                                                                                                                              €25.51Price
                                                                                                                              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
                                                                                                                                      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
                                                                                                                                              Jauge à huile électronique Clio 3 RS - Megane 2 RS
                                                                                                                                                  Do you own a Renault Clio 3 RS or a Renault Megane 2 RS and worry about not having a clear and reliable view of your sports engine's oil level? Does the lack of precise information on your dashboard stress you out before every track session or dynamic drive? Don't let doubt linger any longer! This original RENAULT electronic oil level gauge ...
                                                                                                                                                  €98.82Price
                                                                                                                                                  Jauge à huile électronique Clio 3 RS - Megane 2 RS
                                                                                                                                                      Do you own a Renault Clio 3 RS or a Renault Megane 2 RS and worry about not having a clear and reliable view of your sports engine's oil level? Does the lack of precise information on your dashboard stress you out before every track session or dynamic drive? Don't let doubt linger any longer! This original RENAULT electronic oil level gauge ...
                                                                                                                                                      €98.82Price
                                                                                                                                                      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
                                                                                                                                                                      €53.98 €63.50 Regular price -15% off Price
                                                                                                                                                                      En Stock
                                                                                                                                                                      €53.98 €63.50 Regular price -15% off Price
                                                                                                                                                                      Castrol EDGE 0w40 RN17RSA Oil - Renault Clio 4 RS, Megane 4 RS, Alpine A110Castrol EDGE 0w40 RN17RSA Oil - Renault Clio 4 RS, Megane 4 RS, Alpine A110
                                                                                                                                                                        • On sale!
                                                                                                                                                                        Preserve the raw output, responsiveness, and longevity of your modern turbocharged engine with Castrol EDGE 5L 0w40 RN17RSA motor oil . Explicitly formulated under factory reference 7711943670 to meet the strict engineering approval demands of Renault Sport...
                                                                                                                                                                        €53.98€63.50Regular price-15% offPrice
                                                                                                                                                                        Castrol EDGE 0w40 RN17RSA Oil - Renault Clio 4 RS, Megane 4 RS, Alpine A110Castrol EDGE 0w40 RN17RSA Oil - Renault Clio 4 RS, Megane 4 RS, Alpine A110
                                                                                                                                                                          • On sale!
                                                                                                                                                                          Preserve the raw output, responsiveness, and longevity of your modern turbocharged engine with Castrol EDGE 5L 0w40 RN17RSA motor oil . Explicitly formulated under factory reference 7711943670 to meet the strict engineering approval demands of Renault Sport...
                                                                                                                                                                          €53.98€63.50Regular price-15% offPrice
                                                                                                                                                                          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
                                                                                                                                                                                                  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