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Engine Parts & Tuning Hardware

Unleash Your Engine's Power: Performance Parts & Accessories

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

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

Essential Products to Maximize Engine Performance

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

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

Industry-Leading Benchmark Brands

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

Why you should Choose Optimiz Access for Your Engine Upgrades

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

Unleash Your Engine's Full Potential Today

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

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  • Categories: Alimentation
  • Categories: Circuit d'air
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  • Categories: Entretien
En Stock
€15.20 Price
En Stock
€15.20 Price
Genuine Renault Battery Fixing Bracket - Clio 2 RSGenuine Renault Battery Fixing Bracket - Clio 2 RS
      Don't risk a costly failure or damage! Get the genuine Renault Battery Fixing Bracket , the essential part to keep your Renault Clio 2 RS battery perfectly secured, even under the most sporty driving conditions. Avoid vibrations and short circuits. New product, guaranteed...
      €15.20Price
      Genuine Renault Battery Fixing Bracket - Clio 2 RSGenuine Renault Battery Fixing Bracket - Clio 2 RS
          Don't risk a costly failure or damage! Get the genuine Renault Battery Fixing Bracket , the essential part to keep your Renault Clio 2 RS battery perfectly secured, even under the most sporty driving conditions. Avoid vibrations and short circuits. New product, guaranteed...
          €15.20Price
          En Stock
          €7.55 Price
          En Stock
          €7.55 Price
          Engine Undertray Fixing Screw Renault Clio 2 RS
              Renault Clio 2 RS Undertray Fixing Screw Fixing screw designed for securing the engine undertray on compatible Renault Clio 2 RS models. Suitable for replacing a missing or worn fastener to help keep the lower engine cover securely fitted.
              €7.55Price
              Engine Undertray Fixing Screw Renault Clio 2 RS
                  Renault Clio 2 RS Undertray Fixing Screw Fixing screw designed for securing the engine undertray on compatible Renault Clio 2 RS models. Suitable for replacing a missing or worn fastener to help keep the lower engine cover securely fitted.
                  €7.55Price
                  En Stock
                  €130.66 Price
                  En Stock
                  €130.66 Price
                  Auxiliary Belt Tensioner Renault Megane 4 GT 205Auxiliary Belt Tensioner Renault Megane 4 GT 205
                      Auxiliary Belt Tensioner – Renault Megane 4 GT 205 Auxiliary belt tensioner designed for compatible Renault Megane 4 GT 205 models. It helps maintain the correct tension of the auxiliary drive belt to support reliable operation of belt-driven engine accessories.
                      €130.66Price
                      Auxiliary Belt Tensioner Renault Megane 4 GT 205Auxiliary Belt Tensioner Renault Megane 4 GT 205
                          Auxiliary Belt Tensioner – Renault Megane 4 GT 205 Auxiliary belt tensioner designed for compatible Renault Megane 4 GT 205 models. It helps maintain the correct tension of the auxiliary drive belt to support reliable operation of belt-driven engine accessories.
                          €130.66Price
                          Negative Battery Terminal Original Renault for Renault SportNegative Battery Terminal Original Renault for Renault Sport
                              Negative Battery Terminal Original Renault - Preserve the performance and safety of your Renault Sport. Compatible with Twingo 2 RS, Clio 3 RS, Megane 2 RS and Megane 3 RS. Discover also our other original Renault parts to optimize your vehicle.
                              €13.66Price
                              Negative Battery Terminal Original Renault for Renault SportNegative Battery Terminal Original Renault for Renault Sport
                                  Negative Battery Terminal Original Renault - Preserve the performance and safety of your Renault Sport. Compatible with Twingo 2 RS, Clio 3 RS, Megane 2 RS and Megane 3 RS. Discover also our other original Renault parts to optimize your vehicle.
                                  €13.66Price
                                  Cible capteur AAC moteur K4M Twingo 2 RS y compris R1 et R2Cible capteur AAC moteur K4M Twingo 2 RS y compris R1 et R2
                                      Cible capteur AAC moteur K4M Twingo 2 RS y compris R1 et R2
                                      €46.04Price
                                      Cible capteur AAC moteur K4M Twingo 2 RS y compris R1 et R2Cible capteur AAC moteur K4M Twingo 2 RS y compris R1 et R2
                                          Cible capteur AAC moteur K4M Twingo 2 RS y compris R1 et R2
                                          €46.04Price
                                          En Stock
                                          €2.52 Price
                                          En Stock
                                          €2.52 Price
                                          Ecrou H embase M6x100 Twingo 2 RS
                                              Ecrou H embase M6x100 Twingo 2 RS Ecrou servant à la fixation du levier de frein à main, Connecteurs de batterie, Fixation boitier electronique Référence: 7703033159-7703033205
                                              €2.52Price
                                              Ecrou H embase M6x100 Twingo 2 RS
                                                  Ecrou H embase M6x100 Twingo 2 RS Ecrou servant à la fixation du levier de frein à main, Connecteurs de batterie, Fixation boitier electronique Référence: 7703033159-7703033205
                                                  €2.52Price
                                                  En Stock
                                                  €2.35 Price
                                                  En Stock
                                                  €2.35 Price
                                                  Vis longue fixation pompe à huile Twingo 2 RS
                                                      Vis longue fixation pompe à huile Twingo 2 RS Référence: 7703002873-7703102107
                                                      €2.35Price
                                                      Vis longue fixation pompe à huile Twingo 2 RS
                                                          Vis longue fixation pompe à huile Twingo 2 RS Référence: 7703002873-7703102107
                                                          €2.35Price
                                                          En Stock
                                                          €2.35 Price
                                                          En Stock
                                                          €2.35 Price
                                                          Vis courte fixation pompe à huile Twingo 2 RSVis courte fixation pompe à huile Twingo 2 RS
                                                              Vis fixation pompe à huile Twingo 2 RS Référence: 7703002771
                                                              €2.35Price
                                                              Vis courte fixation pompe à huile Twingo 2 RSVis courte fixation pompe à huile Twingo 2 RS
                                                                  Vis fixation pompe à huile Twingo 2 RS Référence: 7703002771
                                                                  €2.35Price
                                                                  En Stock
                                                                  €5.26 Price
                                                                  En Stock
                                                                  €5.26 Price
                                                                  Renault Hose Clamp
                                                                  • New
                                                                    ` Renault Hose Clamp This Renault hose clamp is designed to secure a compatible hose in the vehicle. It helps maintain a reliable connection and reduce the risk of leaks at the hose joint. Brand: Renault Product type: Hose clamp Application: ...
                                                                    €5.26Price
                                                                    Renault Hose Clamp
                                                                    • New
                                                                      ` Renault Hose Clamp This Renault hose clamp is designed to secure a compatible hose in the vehicle. It helps maintain a reliable connection and reduce the risk of leaks at the hose joint. Brand: Renault Product type: Hose clamp Application: ...
                                                                      €5.26Price
                                                                      Bague fendue épaulée fixation axe alternateur Twingo 2 RSBague fendue épaulée fixation axe alternateur Twingo 2 RS
                                                                          Bague fendue épaulée fixation axe alternateur Twingo 2 RS Référence: 8200581348
                                                                          €3.59Price
                                                                          Bague fendue épaulée fixation axe alternateur Twingo 2 RSBague fendue épaulée fixation axe alternateur Twingo 2 RS
                                                                              Bague fendue épaulée fixation axe alternateur Twingo 2 RS Référence: 8200581348
                                                                              €3.59Price
                                                                              En Stock
                                                                              €197.46 Price
                                                                              En Stock
                                                                              €197.46 Price
                                                                              Carter Huile Twingo RS, R1 et R2Renault Twingo 2 RS / R1 / R2 Oil Pan (Genuine)
                                                                                  Genuine Renault Oil Pan (Ref: 111112011R) for Twingo 2 RS / R1 / R2 : Protect the heart of your engine. A damaged oil pan can lead to critical oil leaks. Discover the associated oil pan gasket and other products at the bottom of the page.
                                                                                  €197.46Price
                                                                                  Carter Huile Twingo RS, R1 et R2Renault Twingo 2 RS / R1 / R2 Oil Pan (Genuine)
                                                                                      Genuine Renault Oil Pan (Ref: 111112011R) for Twingo 2 RS / R1 / R2 : Protect the heart of your engine. A damaged oil pan can lead to critical oil leaks. Discover the associated oil pan gasket and other products at the bottom of the page.
                                                                                      €197.46Price
                                                                                      En Stock
                                                                                      €0.70 Price
                                                                                      En Stock
                                                                                      €0.70 Price
                                                                                      Vis fixation carter huile longue Twingo 2 RSVis fixation carter huile longue Twingo 2 RS
                                                                                          Vis fixation carter huile longue Twingo 2 RS Référence: 8200635080
                                                                                          €0.70Price
                                                                                          Vis fixation carter huile longue Twingo 2 RSVis fixation carter huile longue Twingo 2 RS
                                                                                              Vis fixation carter huile longue Twingo 2 RS Référence: 8200635080
                                                                                              €0.70Price
                                                                                              En Stock
                                                                                              €114.89 Price
                                                                                              En Stock
                                                                                              €114.89 Price
                                                                                              Pompe à essence Sytec Clio 3 RS (Compatible E85)
                                                                                                  Pompe à essence Sytec Clio 3 RS (Compatible E85) Montage...
                                                                                                  €114.89Price
                                                                                                  Pompe à essence Sytec Clio 3 RS (Compatible E85)
                                                                                                      Pompe à essence Sytec Clio 3 RS (Compatible E85) Montage...
                                                                                                      €114.89Price
                                                                                                      En Stock
                                                                                                      €317.52 Price
                                                                                                      En Stock
                                                                                                      €317.52 Price
                                                                                                      Genuine Renault Fuel Pump Gauge Module Clio 4 RSGenuine Renault Fuel Pump Gauge Module Clio 4 RS
                                                                                                          Ensure optimal fuel supply for your Renault Clio 4 RS with this genuine RENAULT fuel pump gauge module . Essential for reliable engine operation and accurate fuel level indication. Discover the compatible ring and seal kit for secure mounting at the bottom of the page.
                                                                                                          €317.52Price
                                                                                                          Genuine Renault Fuel Pump Gauge Module Clio 4 RSGenuine Renault Fuel Pump Gauge Module Clio 4 RS
                                                                                                              Ensure optimal fuel supply for your Renault Clio 4 RS with this genuine RENAULT fuel pump gauge module . Essential for reliable engine operation and accurate fuel level indication. Discover the compatible ring and seal kit for secure mounting at the bottom of the page.
                                                                                                              €317.52Price
                                                                                                              En Stock
                                                                                                              €0.70 Price
                                                                                                              En Stock
                                                                                                              €0.70 Price
                                                                                                              Vis fixation carter huile courte Twingo 2 RS
                                                                                                                  Short Oil Sump Mounting Bolt – Renault Twingo 2 RS The short oil sump mounting bolt, reference 8200635079 , is a fastening component designed for the oil sump assembly of the Renault Twingo 2...
                                                                                                                  €0.70Price
                                                                                                                  Vis fixation carter huile courte Twingo 2 RS
                                                                                                                      Short Oil Sump Mounting Bolt – Renault Twingo 2 RS The short oil sump mounting bolt, reference 8200635079 , is a fastening component designed for the oil sump assembly of the Renault Twingo 2...
                                                                                                                      €0.70Price
                                                                                                                      En Stock
                                                                                                                      €10.68 Price
                                                                                                                      En Stock
                                                                                                                      €10.68 Price
                                                                                                                      RENAULT Megane 4 RS & GT Genuine Coolant Housing SealRENAULT Megane 4 RS & GT Genuine Coolant Housing Seal
                                                                                                                          Don't risk your engine's health with aftermarket parts. This genuine RENAULT coolant housing seal is specifically engineered for the Renault Megane 4 RS and Megane 4 GT . Essential when replacing your thermostat or the complete housing, it ensures a perfect seal for the cooling system, preventing critical leaks and...
                                                                                                                          €10.68Price
                                                                                                                          RENAULT Megane 4 RS & GT Genuine Coolant Housing SealRENAULT Megane 4 RS & GT Genuine Coolant Housing Seal
                                                                                                                              Don't risk your engine's health with aftermarket parts. This genuine RENAULT coolant housing seal is specifically engineered for the Renault Megane 4 RS and Megane 4 GT . Essential when replacing your thermostat or the complete housing, it ensures a perfect seal for the cooling system, preventing critical leaks and...
                                                                                                                              €10.68Price
                                                                                                                              En Stock
                                                                                                                              €12.02 Price
                                                                                                                              En Stock
                                                                                                                              €12.02 Price
                                                                                                                              Renault RS Water Inlet Pipe Gasket (Original Part)
                                                                                                                                  Renault Water Inlet Pipe Gasket (Clio 3 RS, Megane 2/3 RS, etc.) (Original) Original Renault gasket for the water inlet pipe in the cylinder block, compatible with Clio 3 RS, Clio R3, Clio 3 X85 Cup, Megane 2 RS, Megane 3 RS, Megane N4. Ensures perfect sealing. Discover the compatible water inlet pipe at the bottom of the page.
                                                                                                                                  €12.02Price
                                                                                                                                  Renault RS Water Inlet Pipe Gasket (Original Part)
                                                                                                                                      Renault Water Inlet Pipe Gasket (Clio 3 RS, Megane 2/3 RS, etc.) (Original) Original Renault gasket for the water inlet pipe in the cylinder block, compatible with Clio 3 RS, Clio R3, Clio 3 X85 Cup, Megane 2 RS, Megane 3 RS, Megane N4. Ensures perfect sealing. Discover the compatible water inlet pipe at the bottom of the page.
                                                                                                                                      €12.02Price
                                                                                                                                      En Stock
                                                                                                                                      €1.52 Price
                                                                                                                                      En Stock
                                                                                                                                      €1.52 Price
                                                                                                                                      Vis fixation plénum sur collecteur Twingo 2 RS
                                                                                                                                          Vis fixation plénum sur collecteur Twingo 2 RS Vis H embase M6-28 CL:8.8 Référence: 7703002662-7703002559-7707002022
                                                                                                                                          €1.52Price
                                                                                                                                          Vis fixation plénum sur collecteur Twingo 2 RS
                                                                                                                                              Vis fixation plénum sur collecteur Twingo 2 RS Vis H embase M6-28 CL:8.8 Référence: 7703002662-7703002559-7707002022
                                                                                                                                              €1.52Price
                                                                                                                                              En Stock
                                                                                                                                              €1.52 Price
                                                                                                                                              En Stock
                                                                                                                                              €1.52 Price
                                                                                                                                              Vis H embase M6-19 CL:8.8Vis H embase M6-19 CL:8.8
                                                                                                                                                  Vis H embase M6-19 CL:8.8 Pour fixation guide jauge (par exemple) Référence: 7703002659-7703002660-7703008215-681988703R
                                                                                                                                                  €1.52Price
                                                                                                                                                  Vis H embase M6-19 CL:8.8Vis H embase M6-19 CL:8.8
                                                                                                                                                      Vis H embase M6-19 CL:8.8 Pour fixation guide jauge (par exemple) Référence: 7703002659-7703002660-7703008215-681988703R
                                                                                                                                                      €1.52Price
                                                                                                                                                      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
                                                                                                                                                              €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
                                                                                                                                                                  €112.82 Price
                                                                                                                                                                  En Stock
                                                                                                                                                                  €112.82 Price
                                                                                                                                                                  Pompe à essence Sytec Clio 4 RS (Compatible E85)
                                                                                                                                                                      Pompe à essence Sytec Clio 4 RS (Compatible E85) Débit max: 390 L/H Débit: 315 L/H à 3 Bar et 240 L:H à 5 Bar Pression MAX: 10.5 Bar
                                                                                                                                                                      €112.82Price
                                                                                                                                                                      Pompe à essence Sytec Clio 4 RS (Compatible E85)
                                                                                                                                                                          Pompe à essence Sytec Clio 4 RS (Compatible E85) Débit max: 390 L/H Débit: 315 L/H à 3 Bar et 240 L:H à 5 Bar Pression MAX: 10.5 Bar
                                                                                                                                                                          €112.82Price
                                                                                                                                                                          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
                                                                                                                                                                                          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