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Engine Parts & Tuning Hardware

Unleash Your Engine's Power: Performance Parts & Accessories

At Optimiz Access, we offer a vast lineup of engine performance parts and accessories to boost the output of your sports vehicle or premium automobile. Optimize your engine for extreme performance and enjoy an exhilarating driving experience on both road and track.

Key benefits of engine tuning: substantial horsepower and torque gains for rapid acceleration, sharper throttle response, enhanced mechanical reliability using high-strength components, and tailored custom tuning suited to all engines.

Essential Products to Maximize Engine Performance

Discover all our precision-engineered components designed to increase efficiency and durability in your engine block:

  • Cold Air Intakes & Air Filtration – Performance sports filters and carbon intake systems for maximum air filling.
  • Intercoolers & Charge Coolers – Efficient intake air cooling to sustain consistent power output under heavy loads.
  • Forged Pistons & Connecting Rods – Heavy-duty internal components built to withstand extreme temperatures and boost pressures.
  • Turbos & Superchargers – Forced induction upgrades delivering significant power increases.
  • Ignition & Servicing – Competition spark plugs, high-output ignition coils, and high-performance oil filters.

Industry-Leading Benchmark Brands

We stock top tuning and motorsport manufacturers: Wagner Tuning, Forge Motorsport, Magnecor, Green Filter, BMC Filter, NGK, Vibra Technics, and Powerflex. We also supply OEM factory parts to ensure meticulous engine maintenance.

Why you should Choose Optimiz Access for Your Engine Upgrades

Since 2010, Optimiz Access has specialized in selecting top-tier engine components for the custom upgrading and maintenance of sports vehicles. Located in northern France (Hauts-de-France) — near Lille, Valenciennes, Cambrai, Arras, Seclin, Douai, and Saint-Quentin —, our expert technicians guide your hardware selection and provide professional installation in our workshop. We ensure strict quality control along with fast worldwide shipping.

Unleash Your Engine's Full Potential Today

Give your car the raw power and sharp response it deserves. Trust the expertise of Optimiz Access, select your engine performance parts today, and benefit from our fast dispatch.

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  • Categories: Alimentation
  • Categories: Entretien
  • Categories: Refroidissement
  • Categories: Suralimentation (Turbo)
Raccord Pompe à essence Clio GrN
      Renault Clio 2 Group N Fuel Pump Connector , a component intended for the fuel supply system of vehicles configured for Group N applications. Vehicle brand: Renault Model: Clio 2 Application: Group N Part type: Fuel pump connector ...
      €50.45Price
      Raccord Pompe à essence Clio GrN
          Renault Clio 2 Group N Fuel Pump Connector , a component intended for the fuel supply system of vehicles configured for Group N applications. Vehicle brand: Renault Model: Clio 2 Application: Group N Part type: Fuel pump connector ...
          €50.45Price
          Mecacyl CR 100 ml
              Protect your high-performance engine's internal components with the Mecacyl CR 100 ml engine hyper-lubricant. This unique surface treatment mixes directly with your fresh oil to drastically reduce internal friction, lower operating temperatures, and optimize engine...
              €28.50Price
              Mecacyl CR 100 ml
                  Protect your high-performance engine's internal components with the Mecacyl CR 100 ml engine hyper-lubricant. This unique surface treatment mixes directly with your fresh oil to drastically reduce internal friction, lower operating temperatures, and optimize engine...
                  €28.50Price
                  En Stock
                  €23.50 Price
                  En Stock
                  €23.50 Price
                  Kit Revision Dump Valve Recirculation Forge
                      Kit revision pour Dump Valve Forge comprenant: - 1 sachet de graisse - un piston - joints toriques 
                      €23.50Price
                      Kit Revision Dump Valve Recirculation Forge
                          Kit revision pour Dump Valve Forge comprenant: - 1 sachet de graisse - un piston - joints toriques 
                          €23.50Price
                          Outil de blocage Poulie Arbres à cames F4R Clio RS Megane RSOutil de blocage Poulie Arbres à cames F4R Clio RS Megane RS
                              Véritable outil d'origine pour le blocage des poulies d'arbres à cames nécessaire pour le remplacement de la distribution pour les moteurs F4R de Clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS. Kit Spécifique au F4R Renault Sport
                              €139.02Price
                              Outil de blocage Poulie Arbres à cames F4R Clio RS Megane RSOutil de blocage Poulie Arbres à cames F4R Clio RS Megane RS
                                  Véritable outil d'origine pour le blocage des poulies d'arbres à cames nécessaire pour le remplacement de la distribution pour les moteurs F4R de Clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS. Kit Spécifique au F4R Renault Sport
                                  €139.02Price
                                  En Stock
                                  €8.57 Price
                                  En Stock
                                  €8.57 Price
                                  Joint de décanteur Clio 2 RS - Clio 3 RS
                                      Joint de décanteur Clio 2 RS et Clio 3 RS Joint se trouvant entre le décanteur et le plenum
                                      €8.57Price
                                      Joint de décanteur Clio 2 RS - Clio 3 RS
                                          Joint de décanteur Clio 2 RS et Clio 3 RS Joint se trouvant entre le décanteur et le plenum
                                          €8.57Price
                                          En Stock
                                          €59.00 €69.41 Regular price -15% off Price
                                          En Stock
                                          €59.00 €69.41 Regular price -15% off Price
                                          Fuel Injector Genuine Renault Clio 2 RS / Gr.N / CupFuel Injector Genuine Renault Clio 2 RS / Gr.N / Cup
                                              Protect your engine's health with this genuine Renault injector specifically designed for the Clio 2 RS . This authentic part features the ITG M60 marking, guaranteeing optimal fuel atomization for high-performance 2.0 16v engines. Brand new and original Renault ...
                                              €59.00€69.41Regular price-15% offPrice
                                              Fuel Injector Genuine Renault Clio 2 RS / Gr.N / CupFuel Injector Genuine Renault Clio 2 RS / Gr.N / Cup
                                                  Protect your engine's health with this genuine Renault injector specifically designed for the Clio 2 RS . This authentic part features the ITG M60 marking, guaranteeing optimal fuel atomization for high-performance 2.0 16v engines. Brand new and original Renault ...
                                                  €59.00€69.41Regular price-15% offPrice
                                                  Dispo selon configuration
                                                  €67.23 €74.70 Regular price -10% off Price
                                                  Dispo selon configuration
                                                  €67.23 €74.70 Regular price -10% off Price
                                                  Kit Vidange Elf SXR 5w40 Clio 4 RS - Megane 4 GTKit Vidange Elf SXR 5w40 Clio 4 RS - Megane 4 GT
                                                    • Pack
                                                    Kit Vidange Elf Evolution SXR comprenant 3 bidons de 2 Litres d'huile Elf Evolution SXR 5w40 (préconisation Constructeur), 1 filtre à huile Renault et 1 joint de vidange
                                                    €67.23€74.70Regular price-10% offPrice
                                                    Kit Vidange Elf SXR 5w40 Clio 4 RS - Megane 4 GTKit Vidange Elf SXR 5w40 Clio 4 RS - Megane 4 GT
                                                      • Pack
                                                      Kit Vidange Elf Evolution SXR comprenant 3 bidons de 2 Litres d'huile Elf Evolution SXR 5w40 (préconisation Constructeur), 1 filtre à huile Renault et 1 joint de vidange
                                                      €67.23€74.70Regular price-10% offPrice
                                                      En Stock
                                                      €720.00 Price
                                                      En Stock
                                                      €720.00 Price
                                                      Echangeur Airtec Megane 3 RSEchangeur Airtec Megane 3 RS
                                                          Échangeur Airtec spécifique à la Mégane 3 RS. Échangeur de 60 mm se montant en lieu et place sans modifications et équipé d'une tôle permettant de diriger un plus gros flux d'air vers l’échangeur. Disponible en gris
                                                          €720.00Price
                                                          Echangeur Airtec Megane 3 RSEchangeur Airtec Megane 3 RS
                                                              Échangeur Airtec spécifique à la Mégane 3 RS. Échangeur de 60 mm se montant en lieu et place sans modifications et équipé d'une tôle permettant de diriger un plus gros flux d'air vers l’échangeur. Disponible en gris
                                                              €720.00Price
                                                              Fixations Forge Capteur Sur RadiateurFORGE MOTORSPORT FMRCLMP Sensor Securing Kit - Megane 2 RS
                                                                  Secure the sensors of your Megane 2 RS with the FORGE MOTORSPORT FMRCLMP kit. Composed of 2 reinforcements, it ensures optimal support for the depression hose and pressure sensor. Avoid performance losses and reliability issues.
                                                                  €36.80Price
                                                                  Fixations Forge Capteur Sur RadiateurFORGE MOTORSPORT FMRCLMP Sensor Securing Kit - Megane 2 RS
                                                                      Secure the sensors of your Megane 2 RS with the FORGE MOTORSPORT FMRCLMP kit. Composed of 2 reinforcements, it ensures optimal support for the depression hose and pressure sensor. Avoid performance losses and reliability issues.
                                                                      €36.80Price
                                                                      En Stock
                                                                      €150.77 Price
                                                                      En Stock
                                                                      €150.77 Price
                                                                      Bride de turbo Megane N4
                                                                          Official Renault Megane N4 Rally Turbo Flange (Ref: 7711167131) : Original part, guaranteeing performance and reliability for your Renault Megane 3 RS prepared for competition. Don't let an unsuitable flange compromise your turbo's potential. Discover related products, including the O-ring, at the bottom of this page.
                                                                          €150.77Price
                                                                          Bride de turbo Megane N4
                                                                              Official Renault Megane N4 Rally Turbo Flange (Ref: 7711167131) : Original part, guaranteeing performance and reliability for your Renault Megane 3 RS prepared for competition. Don't let an unsuitable flange compromise your turbo's potential. Discover related products, including the O-ring, at the bottom of this page.
                                                                              €150.77Price
                                                                              Dump Valve Ouverte Forge Clio 4 RSDump Valve Ouverte Forge Clio 4 RS
                                                                                  The Forge Motorsport open dump valve , reference FMDVC200A , is designed for the Renault Clio IV RS 1.6 Turbo 200/220 . This atmospheric blow-off valve replaces the standard setup and releases excess boost pressure externally when the throttle is lifted. The kit is specifically developed for the Clio 4 RS and includes...
                                                                                  €191.53Price
                                                                                  Dump Valve Ouverte Forge Clio 4 RSDump Valve Ouverte Forge Clio 4 RS
                                                                                      The Forge Motorsport open dump valve , reference FMDVC200A , is designed for the Renault Clio IV RS 1.6 Turbo 200/220 . This atmospheric blow-off valve replaces the standard setup and releases excess boost pressure externally when the throttle is lifted. The kit is specifically developed for the Clio 4 RS and includes...
                                                                                      €191.53Price
                                                                                      Durite Forge Admission Megane 2 RSForge Silicone Intake Hose Megane 2 RS
                                                                                          Forge Motorsport Silicone Intake Hose for Renault Megane 2 RS Optimize the airflow to your Renault Megane 2 RS engine with this high-quality silicone intake hose from Forge Motorsport (ref: FMRMBHS). Available in several colors. Connects to the throttle body. Discover associated products at the bottom of the page.
                                                                                          €44.99Price
                                                                                          Durite Forge Admission Megane 2 RSForge Silicone Intake Hose Megane 2 RS
                                                                                              Forge Motorsport Silicone Intake Hose for Renault Megane 2 RS Optimize the airflow to your Renault Megane 2 RS engine with this high-quality silicone intake hose from Forge Motorsport (ref: FMRMBHS). Available in several colors. Connects to the throttle body. Discover associated products at the bottom of the page.
                                                                                              €44.99Price
                                                                                              Multi-layer reinforced silicone turbo boost hose kit by Forge Motorsport for Renault Megane 2 RS.Silicone Turbo Hose Kit Forge | Renault Megane 2 RS
                                                                                                  Do not risk a sudden loss of boost pressure during a hard acceleration pull, a split factory duct caused by extreme engine bay heat, or an efficiency drop at your intercooler cores. The premium Kit Durites (Tubulures) Turbo Forge Motorsport pour Megane 2 RS replaces...
                                                                                                  €241.00Price
                                                                                                  Multi-layer reinforced silicone turbo boost hose kit by Forge Motorsport for Renault Megane 2 RS.Silicone Turbo Hose Kit Forge | Renault Megane 2 RS
                                                                                                      Do not risk a sudden loss of boost pressure during a hard acceleration pull, a split factory duct caused by extreme engine bay heat, or an efficiency drop at your intercooler cores. The premium Kit Durites (Tubulures) Turbo Forge Motorsport pour Megane 2 RS replaces...
                                                                                                      €241.00Price
                                                                                                      En Stock
                                                                                                      €56.11 Price
                                                                                                      En Stock
                                                                                                      €56.11 Price
                                                                                                      Électrovanne pilotée Megane 2 RSTurbo Boost Solenoid Valve Mégane 2 RS
                                                                                                          Turbo Boost Control Solenoid Valve – Renault Mégane 2 RS The turbo boost control solenoid valve, reference 8200702990 , is an engine management component designed to regulate the turbocharger...
                                                                                                          €56.11Price
                                                                                                          Électrovanne pilotée Megane 2 RSTurbo Boost Solenoid Valve Mégane 2 RS
                                                                                                              Turbo Boost Control Solenoid Valve – Renault Mégane 2 RS The turbo boost control solenoid valve, reference 8200702990 , is an engine management component designed to regulate the turbocharger...
                                                                                                              €56.11Price
                                                                                                              Clio 2 RS (X65 Cup, Gr N) Accelerator Cable Clip - OriginalClio 2 RS (X65 Cup, Gr N) Accelerator Cable Clip - Original
                                                                                                                  The original Renault accelerator cable clip is an essential fastening part to ensure precise and reliable accelerator operation on your Renault Clio 2 RS , Clio 2 X65 Cup , or Clio 2 Gr N . Ensure a secure connection and optimal accelerator response with this original quality clip. We ship worldwide.
                                                                                                                  €2.20Price
                                                                                                                  Clio 2 RS (X65 Cup, Gr N) Accelerator Cable Clip - OriginalClio 2 RS (X65 Cup, Gr N) Accelerator Cable Clip - Original
                                                                                                                      The original Renault accelerator cable clip is an essential fastening part to ensure precise and reliable accelerator operation on your Renault Clio 2 RS , Clio 2 X65 Cup , or Clio 2 Gr N . Ensure a secure connection and optimal accelerator response with this original quality clip. We ship worldwide.
                                                                                                                      €2.20Price
                                                                                                                      En Stock
                                                                                                                      €50.86 Price
                                                                                                                      En Stock
                                                                                                                      €50.86 Price
                                                                                                                      Manchon pipe de remplissage réservoir Twingo 2 RS
                                                                                                                          Manchon pipe de remplissage réservoir Twingo 2 RS
                                                                                                                          €50.86Price
                                                                                                                          Manchon pipe de remplissage réservoir Twingo 2 RS
                                                                                                                              Manchon pipe de remplissage réservoir Twingo 2 RS
                                                                                                                              €50.86Price
                                                                                                                              En Stock
                                                                                                                              €19.30 €25.79 Regular price -€6.49 off Price
                                                                                                                              En Stock
                                                                                                                              €19.30 €25.79 Regular price -€6.49 off Price
                                                                                                                              Courroie accessoire Twingo RS et R1
                                                                                                                                  Don't risk an unexpected breakdown! This summary concerns the Genuine RENAULT Accessory Belt for the Renault Twingo 2 RS and Renault Wind 1.6 16v models. This is an essential part for the smooth running of your sports engine. Failing to replace it in time risks costly damage. ...
                                                                                                                                  €19.30€25.79Regular price-€6.49 offPrice
                                                                                                                                  Courroie accessoire Twingo RS et R1
                                                                                                                                      Don't risk an unexpected breakdown! This summary concerns the Genuine RENAULT Accessory Belt for the Renault Twingo 2 RS and Renault Wind 1.6 16v models. This is an essential part for the smooth running of your sports engine. Failing to replace it in time risks costly damage. ...
                                                                                                                                      €19.30€25.79Regular price-€6.49 offPrice
                                                                                                                                      En Stock
                                                                                                                                      €251.47 Price
                                                                                                                                      En Stock
                                                                                                                                      €251.47 Price
                                                                                                                                      Kit Joint Refection moteur Origine Megane 3 RSKit Joint Refection moteur Origine Megane 3 RS
                                                                                                                                          Ensemble de joints nécessaire au bon remontage du moteur de Megane 3 RS Véritable produit d'origine
                                                                                                                                          €251.47Price
                                                                                                                                          Kit Joint Refection moteur Origine Megane 3 RSKit Joint Refection moteur Origine Megane 3 RS
                                                                                                                                              Ensemble de joints nécessaire au bon remontage du moteur de Megane 3 RS Véritable produit d'origine
                                                                                                                                              €251.47Price
                                                                                                                                              Motul 300V Competition 5W40 2L Engine Oil - RS, Audi, VW, Porsche, Mercedes (Racing)
                                                                                                                                                  Motul 300V Competition Engine Oil 5W40 2L - Ultimate Performance for Racing Don't let your competition vehicle's performance be compromised. engine oil is the ultimate choice for maximum protection and unmatched track performance. Specifically developed formula for extreme racing demands. 2-liter can. Also discover our...
                                                                                                                                                  €39.99Price
                                                                                                                                                  Motul 300V Competition 5W40 2L Engine Oil - RS, Audi, VW, Porsche, Mercedes (Racing)
                                                                                                                                                      Motul 300V Competition Engine Oil 5W40 2L - Ultimate Performance for Racing Don't let your competition vehicle's performance be compromised. engine oil is the ultimate choice for maximum protection and unmatched track performance. Specifically developed formula for extreme racing demands. 2-liter can. Also discover our...
                                                                                                                                                      €39.99Price
                                                                                                                                                      En Stock
                                                                                                                                                      €139.18 €231.97 Regular price -40% off Price
                                                                                                                                                      En Stock
                                                                                                                                                      €139.18 €231.97 Regular price -40% off Price
                                                                                                                                                      Kit Distribution Clio 1.8 16S et WilliamsKit Distribution Clio 1.8 16S et Williams
                                                                                                                                                          Kit distribution Renault pour Clio 1.8 16S Le kit contient la courroie et les 2 galets En cas de doute nous consulter.
                                                                                                                                                          €139.18€231.97Regular price-40% offPrice
                                                                                                                                                          Kit Distribution Clio 1.8 16S et WilliamsKit Distribution Clio 1.8 16S et Williams
                                                                                                                                                              Kit distribution Renault pour Clio 1.8 16S Le kit contient la courroie et les 2 galets En cas de doute nous consulter.
                                                                                                                                                              €139.18€231.97Regular price-40% offPrice
                                                                                                                                                              En Stock
                                                                                                                                                              €13.37 Price
                                                                                                                                                              En Stock
                                                                                                                                                              €13.37 Price
                                                                                                                                                              Joint Plenum Clio 2 RS
                                                                                                                                                                  Joint Plenum Clio 2 RS. Joint permettant de faire l’étanchéité entre le collecteur d'admission et le plenum Il est conseillé de le changer lors à chaque démontage et donc lors du retaillage de l'ensemble collecteur / plenum
                                                                                                                                                                  €13.37Price
                                                                                                                                                                  Joint Plenum Clio 2 RS
                                                                                                                                                                      Joint Plenum Clio 2 RS. Joint permettant de faire l’étanchéité entre le collecteur d'admission et le plenum Il est conseillé de le changer lors à chaque démontage et donc lors du retaillage de l'ensemble collecteur / plenum
                                                                                                                                                                      €13.37Price
                                                                                                                                                                      En Stock
                                                                                                                                                                      €98.33 Price
                                                                                                                                                                      En Stock
                                                                                                                                                                      €98.33 Price
                                                                                                                                                                      Reinforced aluminum piston dump valve by Forge Motorsport for Megane 4 GT 205, SKU: FMSPRN12.Forge Piston Dump Valve | Renault Megane 4 GT 205
                                                                                                                                                                          Prevent boost pressure leaks and safeguard your turbocharger's mechanical integrity with the Forge Dump Valve Megane 4 GT 205 . Engineered to replace the fragile factory rubber diaphragm valve, this premium billet aluminum piston-driven version guarantees a perfect air-tight...
                                                                                                                                                                          €98.33Price
                                                                                                                                                                          Reinforced aluminum piston dump valve by Forge Motorsport for Megane 4 GT 205, SKU: FMSPRN12.Forge Piston Dump Valve | Renault Megane 4 GT 205
                                                                                                                                                                              Prevent boost pressure leaks and safeguard your turbocharger's mechanical integrity with the Forge Dump Valve Megane 4 GT 205 . Engineered to replace the fragile factory rubber diaphragm valve, this premium billet aluminum piston-driven version guarantees a perfect air-tight...
                                                                                                                                                                              €98.33Price
                                                                                                                                                                              En Stock
                                                                                                                                                                              €12.78 Price
                                                                                                                                                                              En Stock
                                                                                                                                                                              €12.78 Price
                                                                                                                                                                              Tuyau essence vapeur canister Ø8 Megane N4Tuyau essence vapeur canister Ø8 Megane N4
                                                                                                                                                                                  Tuyau essence vapeur canister Ø8 Megane N4 Référence: 7711167251
                                                                                                                                                                                  €12.78Price
                                                                                                                                                                                  Tuyau essence vapeur canister Ø8 Megane N4Tuyau essence vapeur canister Ø8 Megane N4
                                                                                                                                                                                      Tuyau essence vapeur canister Ø8 Megane N4 Référence: 7711167251
                                                                                                                                                                                      €12.78Price
                                                                                                                                                                                      Vis de fixation de poulie de vilebrequin (damper) Clio 2 RS
                                                                                                                                                                                          Vis de fixation de poulie de vilebrequin (damper) Clio 2 RS
                                                                                                                                                                                          €20.00Price
                                                                                                                                                                                          Vis de fixation de poulie de vilebrequin (damper) Clio 2 RS
                                                                                                                                                                                              Vis de fixation de poulie de vilebrequin (damper) Clio 2 RS
                                                                                                                                                                                              €20.00Price
                                                                                                                                                                                              Durite d'induction (admission) Forge Motorsport Megane 4 RSDurite d'induction (admission) Forge Motorsport Megane 4 RS
                                                                                                                                                                                                  Durite d'induction (admission) Forge Motorsport Megane 4 RS Produit de qualité permettant de limiter les perturbations.
                                                                                                                                                                                                  €118.31Price
                                                                                                                                                                                                  Durite d'induction (admission) Forge Motorsport Megane 4 RSDurite d'induction (admission) Forge Motorsport Megane 4 RS
                                                                                                                                                                                                      Durite d'induction (admission) Forge Motorsport Megane 4 RS Produit de qualité permettant de limiter les perturbations.
                                                                                                                                                                                                      €118.31Price
                                                                                                                                                                                                      Kit durites de turbo Forge Motorsport Megane 4 RSForge Motorsport Turbo Hose Kit - Renault Megane 4 RS
                                                                                                                                                                                                          Secure your boost pressure consistency and eliminate intake charge drops with the high-performance Forge Motorsport Turbo Hose Kit for the Renault Megane 4 RS . This premium set of uprated silicone boost couplers replaces the restrictive factory rubber lines to optimize...
                                                                                                                                                                                                          €294.76Price
                                                                                                                                                                                                          Kit durites de turbo Forge Motorsport Megane 4 RSForge Motorsport Turbo Hose Kit - Renault Megane 4 RS
                                                                                                                                                                                                              Secure your boost pressure consistency and eliminate intake charge drops with the high-performance Forge Motorsport Turbo Hose Kit for the Renault Megane 4 RS . This premium set of uprated silicone boost couplers replaces the restrictive factory rubber lines to optimize...
                                                                                                                                                                                                              €294.76Price
                                                                                                                                                                                                              Câble accélérateur Clio 3 X85 Cup
                                                                                                                                                                                                                  Don't let a seized cable compromise your responsiveness on the track. This official Renault Sport throttle cable is specifically designed for the Renault Clio 3 X85 Cup . Genuine manufacturer part (Reference 7711160160). High-resistance design for intensive competition ...
                                                                                                                                                                                                                  €52.69Price
                                                                                                                                                                                                                  Câble accélérateur Clio 3 X85 Cup
                                                                                                                                                                                                                      Don't let a seized cable compromise your responsiveness on the track. This official Renault Sport throttle cable is specifically designed for the Renault Clio 3 X85 Cup . Genuine manufacturer part (Reference 7711160160). High-resistance design for intensive competition ...
                                                                                                                                                                                                                      €52.69Price