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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
  • Categories: Suralimentation (Turbo)
Demi-coussinet sup. ergoté / rainuré Clio R3 MAX (prix unitaire)Demi-coussinet sup. ergoté / rainuré Clio R3 MAX (prix unitaire)
      Demi-coussinet sup. ergoté / rainuré Clio R3 MAX (prix unitaire) La photo représente 5 coussinets mais le prix est unitaire
      €79.93Price
      Demi-coussinet sup. ergoté / rainuré Clio R3 MAX (prix unitaire)Demi-coussinet sup. ergoté / rainuré Clio R3 MAX (prix unitaire)
          Demi-coussinet sup. ergoté / rainuré Clio R3 MAX (prix unitaire) La photo représente 5 coussinets mais le prix est unitaire
          €79.93Price
          Silicone Coolant Hose Kit Renault Clio 4 RS – 11 PiecesSilicone Coolant Hose Kit Renault Clio 4 RS – 11 Pieces
              Silicone Coolant Hose Kit – Renault Clio 4 RS (11 Pieces) 11-piece silicone coolant hose kit designed for compatible Renault Clio 4 RS models. The kit is intended to replace the corresponding hoses in the engine cooling system. Check compatibility with your vehicle's engine and cooling system configuration before ordering.
              €309.00Price
              Silicone Coolant Hose Kit Renault Clio 4 RS – 11 PiecesSilicone Coolant Hose Kit Renault Clio 4 RS – 11 Pieces
                  Silicone Coolant Hose Kit – Renault Clio 4 RS (11 Pieces) 11-piece silicone coolant hose kit designed for compatible Renault Clio 4 RS models. The kit is intended to replace the corresponding hoses in the engine cooling system. Check compatibility with your vehicle's engine and cooling system configuration before ordering.
                  €309.00Price
                  En Stock
                  €31.04 Price
                  En Stock
                  €31.04 Price
                  Soupape d'admission forgéeForged Intake Valve
                      Forged Intake Valve – 28337-70856 The forged intake valve 28337-70856 is an engine component designed to control the entry of air, or the air-fuel mixture, into the combustion chamber. It...
                      €31.04Price
                      Soupape d'admission forgéeForged Intake Valve
                          Forged Intake Valve – 28337-70856 The forged intake valve 28337-70856 is an engine component designed to control the entry of air, or the air-fuel mixture, into the combustion chamber. It...
                          €31.04Price
                          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
                                              En Stock
                                              €308.40 Price
                                              En Stock
                                              €308.40 Price
                                              Turbosmart Dual Port Dump Valve - Renault Clio 4 RSTurbosmart Dual Port Dump Valve - Renault Clio 4 RS
                                                  Improve your engine's responsiveness with the Turbosmart Dual Port Kompact Dump Valve (ref. TS-0203-1057) for Renault Clio 4 RS . Designed to replace the factory plastic unit which is often prone to leaking, this high-performance valve ensures perfect boost management and delivers...
                                                  €308.40Price
                                                  Turbosmart Dual Port Dump Valve - Renault Clio 4 RSTurbosmart Dual Port Dump Valve - Renault Clio 4 RS
                                                      Improve your engine's responsiveness with the Turbosmart Dual Port Kompact Dump Valve (ref. TS-0203-1057) for Renault Clio 4 RS . Designed to replace the factory plastic unit which is often prone to leaking, this high-performance valve ensures perfect boost management and delivers...
                                                      €308.40Price
                                                      En Stock
                                                      €235.91 Price
                                                      En Stock
                                                      €235.91 Price
                                                      Turbosmart Kompact Dump Valve - Renault Megane 3 RSTurbosmart Kompact Dump Valve - Renault Megane 3 RS
                                                          Improve your engine's responsiveness with the Turbosmart Kompact Shortie Dump Valve (ref. TS-0203-1308) for Renault Megane 3 RS . Designed to replace the factory plastic unit which is prone to leaking, this high-performance valve guarantees a perfect seal under high boost pressure and a sharper...
                                                          €235.91Price
                                                          Turbosmart Kompact Dump Valve - Renault Megane 3 RSTurbosmart Kompact Dump Valve - Renault Megane 3 RS
                                                              Improve your engine's responsiveness with the Turbosmart Kompact Shortie Dump Valve (ref. TS-0203-1308) for Renault Megane 3 RS . Designed to replace the factory plastic unit which is prone to leaking, this high-performance valve guarantees a perfect seal under high boost pressure and a sharper...
                                                              €235.91Price
                                                              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
                                                                                                      Turbo Oil Return Pipe (Lower Part) - Renault Megane 2/3 RSTurbo Oil Return Pipe (Lower Part) - Renault Megane 2/3 RS
                                                                                                          Ensure critical sealing in your lubrication circuit with this genuine Renault turbo oil return pipe (lower part) . Specifically designed for the F4Rt engines in the Renault Megane 2 RS and Megane 3 RS , this connector guarantees a smooth oil flow back to the sump. A certified manufacturer part ...
                                                                                                          €106.16Price
                                                                                                          Turbo Oil Return Pipe (Lower Part) - Renault Megane 2/3 RSTurbo Oil Return Pipe (Lower Part) - Renault Megane 2/3 RS
                                                                                                              Ensure critical sealing in your lubrication circuit with this genuine Renault turbo oil return pipe (lower part) . Specifically designed for the F4Rt engines in the Renault Megane 2 RS and Megane 3 RS , this connector guarantees a smooth oil flow back to the sump. A certified manufacturer part ...
                                                                                                              €106.16Price
                                                                                                              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
                                                                                                                      €10.02 Price
                                                                                                                      En Stock
                                                                                                                      €10.02 Price
                                                                                                                      Joint de cold side
                                                                                                                          COLD SIDE SEAL – JTCOLD The cold side seal, reference JTCOLD , is a sealing component intended for use on the cold side of an air circuit. It helps provide an airtight connection between...
                                                                                                                          €10.02Price
                                                                                                                          Joint de cold side
                                                                                                                              COLD SIDE SEAL – JTCOLD The cold side seal, reference JTCOLD , is a sealing component intended for use on the cold side of an air circuit. It helps provide an airtight connection between...
                                                                                                                              €10.02Price
                                                                                                                              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
                                                                                                                                      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
                                                                                                                                              €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
                                                                                                                                                      Joint de tuyau de retour d'huile dans cylindre Megane RS
                                                                                                                                                          Maintain the integrity of your lubrication system with this genuine RENAULT oil return pipe seal . Essential for your Mégane 2 RS or Mégane 3 RS , this component ensures the lubricant returns to the engine block without any loss. Do not risk a leak that could degrade your mechanical components or contaminate your...
                                                                                                                                                          €5.05Price
                                                                                                                                                          Joint de tuyau de retour d'huile dans cylindre Megane RS
                                                                                                                                                              Maintain the integrity of your lubrication system with this genuine RENAULT oil return pipe seal . Essential for your Mégane 2 RS or Mégane 3 RS , this component ensures the lubricant returns to the engine block without any loss. Do not risk a leak that could degrade your mechanical components or contaminate your...
                                                                                                                                                              €5.05Price
                                                                                                                                                              En Stock
                                                                                                                                                              €1,480.00 Price
                                                                                                                                                              En Stock
                                                                                                                                                              €1,480.00 Price
                                                                                                                                                              Echangeur Wagner EVO 1 Toyota Supra MK4Echangeur Wagner EVO 1 Toyota Supra MK4
                                                                                                                                                                  KIT COMPETITION INTERCOOLER pour EVO1 pour Toyota Supra JZA80 MK4 Le refroidisseur intermédiaire haute performance WAGNERTUNING a un nouveau...
                                                                                                                                                                  €1,480.00Price
                                                                                                                                                                  Echangeur Wagner EVO 1 Toyota Supra MK4Echangeur Wagner EVO 1 Toyota Supra MK4
                                                                                                                                                                      KIT COMPETITION INTERCOOLER pour EVO1 pour Toyota Supra JZA80 MK4 Le refroidisseur intermédiaire haute performance WAGNERTUNING a un nouveau...
                                                                                                                                                                      €1,480.00Price
                                                                                                                                                                      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
                                                                                                                                                                                      €790.00 Price
                                                                                                                                                                                      En Stock
                                                                                                                                                                                      €790.00 Price
                                                                                                                                                                                      Echangeur Wagner Compétition EVO2 Ford MUSTANGEchangeur Wagner Compétition EVO2 Ford MUSTANG
                                                                                                                                                                                          Echangeur Wagner Compétition EVO2 Ford MUSTANG  Kit de mise à niveau du refroidisseur intermédiaire EVO 2 pour Ford Mustang 2.3l EcoBoost 2015+ (y compris le lifting) <br...
                                                                                                                                                                                          €790.00Price
                                                                                                                                                                                          Echangeur Wagner Compétition EVO2 Ford MUSTANGEchangeur Wagner Compétition EVO2 Ford MUSTANG
                                                                                                                                                                                              Echangeur Wagner Compétition EVO2 Ford MUSTANG  Kit de mise à niveau du refroidisseur intermédiaire EVO 2 pour Ford Mustang 2.3l EcoBoost 2015+ (y compris le lifting) <br...
                                                                                                                                                                                              €790.00Price
                                                                                                                                                                                              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