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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
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  • Categories: Préparation intérieure
En Stock
€224.35 Price
En Stock
€224.35 Price
Kit Joint Refection moteur Origine Clio 2 RS
      Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
      €224.35Price
      Kit Joint Refection moteur Origine Clio 2 RS
          Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
          €224.35Price
          En Stock
          €133.31 Price
          En Stock
          €133.31 Price
          Joint de Culasse renforcé CometicJoint de Culasse renforcé Cometic
              Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 0.75mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
              €133.31Price
              Joint de Culasse renforcé CometicJoint de Culasse renforcé Cometic
                  Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 0.75mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                  €133.31Price
                  En Stock
                  €3.16 Price
                  En Stock
                  €3.16 Price
                  Clip maintien support linguet Twingo R2 195/205
                      Clip maintien support linguet Twingo R2 195/205 Référence: 7711167614
                      €3.16Price
                      Clip maintien support linguet Twingo R2 195/205
                          Clip maintien support linguet Twingo R2 195/205 Référence: 7711167614
                          €3.16Price
                          Genuine Renault Sport throttle position potentiometer for Twingo R2, Clio R3, and X85 Cup racing engines.
                              Do not risk unpredictable ignition cuts during a rally stage, a sudden loss of immediate throttle response, or an abrupt limp-mode activation that freezes your lap times on track. The genuine Potentiomètre papillon Twingo R2, Clio R3 et X85 Cup is the official factory-spec...
                              €138.05Price
                              Genuine Renault Sport throttle position potentiometer for Twingo R2, Clio R3, and X85 Cup racing engines.
                                  Do not risk unpredictable ignition cuts during a rally stage, a sudden loss of immediate throttle response, or an abrupt limp-mode activation that freezes your lap times on track. The genuine Potentiomètre papillon Twingo R2, Clio R3 et X85 Cup is the official factory-spec...
                                  €138.05Price
                                  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
                                          Collection Entrainement pompe à huile Clio 2 RS, Gr N et X65Cup
                                              Collection Entrainement pompe à huile Clio 2 RS, Gr N et X65Cup
                                              €54.25Price
                                              Collection Entrainement pompe à huile Clio 2 RS, Gr N et X65Cup
                                                  Collection Entrainement pompe à huile Clio 2 RS, Gr N et X65Cup
                                                  €54.25Price
                                                  Durites de Reniflard et Wasegate Megane 2 RS
                                                      Durites De reniflard Renforcées pour toutes Megane 2 RS. Produit de la marque Samco Sport Le kit est composé de 4 pièces.
                                                      €82.00Price
                                                      Durites de Reniflard et Wasegate Megane 2 RS
                                                          Durites De reniflard Renforcées pour toutes Megane 2 RS. Produit de la marque Samco Sport Le kit est composé de 4 pièces.
                                                          €82.00Price
                                                          Bouchon Vase Expansion 1.4 BarGenuine Renault Expansion Tank Cap 1.4 Bar - Super 5 GT Turbo / Clio 16S / Williams / R21 Turbo
                                                              Safeguard your cooling system with this genuine Renault expansion tank cap rated at 1.4 Bar . Specifically engineered for legendary performance models such as the Renault Super 5 GT Turbo , Clio Williams , and R21 2L Turbo , it ensures optimal pressure regulation to prevent engine overheating. A vital precision...
                                                              €28.78Price
                                                              Bouchon Vase Expansion 1.4 BarGenuine Renault Expansion Tank Cap 1.4 Bar - Super 5 GT Turbo / Clio 16S / Williams / R21 Turbo
                                                                  Safeguard your cooling system with this genuine Renault expansion tank cap rated at 1.4 Bar . Specifically engineered for legendary performance models such as the Renault Super 5 GT Turbo , Clio Williams , and R21 2L Turbo , it ensures optimal pressure regulation to prevent engine overheating. A vital precision...
                                                                  €28.78Price
                                                                  En Stock
                                                                  €1,326.07 Price
                                                                  En Stock
                                                                  €1,326.07 Price
                                                                  AAC Admission loi 286TR2A2 Twingo R2 205
                                                                      AAC Admission loi 286TR2A2 Twingo R2 205 Référence: 7711167674
                                                                      €1,326.07Price
                                                                      AAC Admission loi 286TR2A2 Twingo R2 205
                                                                          AAC Admission loi 286TR2A2 Twingo R2 205 Référence: 7711167674
                                                                          €1,326.07Price
                                                                          Joint de vidangeDrain Plug Seal Clio 4 RS / Mégane RS / Alpine A110
                                                                              Renault Sport and Alpine Engine Drain Plug Seal The engine drain plug seal , reference 1102601M02 , is a sealing component used at the engine oil drain...
                                                                              €2.92Price
                                                                              Joint de vidangeDrain Plug Seal Clio 4 RS / Mégane RS / Alpine A110
                                                                                  Renault Sport and Alpine Engine Drain Plug Seal The engine drain plug seal , reference 1102601M02 , is a sealing component used at the engine oil drain...
                                                                                  €2.92Price
                                                                                  Kit Complet Durites D'eau Clio 3 RSKit Complet Durites D'eau Clio 3 RS
                                                                                      Kit complet de durites d'eau pour Clio 3 RS. Convient à toutes les Clio 3 RS Ce kit vient en lieu et place des durites d'origine et les remplacent avantageusement.
                                                                                      €445.18Price
                                                                                      Kit Complet Durites D'eau Clio 3 RSKit Complet Durites D'eau Clio 3 RS
                                                                                          Kit complet de durites d'eau pour Clio 3 RS. Convient à toutes les Clio 3 RS Ce kit vient en lieu et place des durites d'origine et les remplacent avantageusement.
                                                                                          €445.18Price
                                                                                          En Stock
                                                                                          €15.42 Price
                                                                                          En Stock
                                                                                          €15.42 Price
                                                                                          Huile moteur Total quartz racing 10w60
                                                                                              Huile moteur Total Quartz Racing 10w60 Produit préconisé par Renault sport pour la Mégane N4 Référence: 7711166390 Vendu en bidon de 1L
                                                                                              €15.42Price
                                                                                              Huile moteur Total quartz racing 10w60
                                                                                                  Huile moteur Total Quartz Racing 10w60 Produit préconisé par Renault sport pour la Mégane N4 Référence: 7711166390 Vendu en bidon de 1L
                                                                                                  €15.42Price
                                                                                                  En Stock
                                                                                                  €90.50 €120.66 Regular price -25% off Price
                                                                                                  En Stock
                                                                                                  €90.50 €120.66 Regular price -25% off Price
                                                                                                  Huile moteur HTX 3823 0W20 4LHuile moteur HTX 3823 0W20 4L
                                                                                                      Huile moteur HTX 3823 0W20 4L Référence: 7711167580
                                                                                                      €90.50€120.66Regular price-25% offPrice
                                                                                                      Huile moteur HTX 3823 0W20 4LHuile moteur HTX 3823 0W20 4L
                                                                                                          Huile moteur HTX 3823 0W20 4L Référence: 7711167580
                                                                                                          €90.50€120.66Regular price-25% offPrice
                                                                                                          En Stock
                                                                                                          €279.71 Price
                                                                                                          En Stock
                                                                                                          €279.71 Price
                                                                                                          Kit 11 Durites Silicone Super 5 GT TURBO Ph 2Kit 11 Durites Silicone Super 5 GT TURBO Ph 2
                                                                                                              Kit de 11 Durites Silicones pour Super 5 GT Turbo Phase 2 Noir mat afin de rester dans l'esprit d'origine de la voiture Parfait pour une restoration
                                                                                                              €279.71Price
                                                                                                              Kit 11 Durites Silicone Super 5 GT TURBO Ph 2Kit 11 Durites Silicone Super 5 GT TURBO Ph 2
                                                                                                                  Kit de 11 Durites Silicones pour Super 5 GT Turbo Phase 2 Noir mat afin de rester dans l'esprit d'origine de la voiture Parfait pour une restoration
                                                                                                                  €279.71Price
                                                                                                                  Flasque palier ( X2.30 )2.3mm Crankshaft Thrust Washer - Renault Clio RS & Megane RS
                                                                                                                      Ensure the longevity of your bottom end with this genuine Renault crankshaft thrust washer pair . Featuring a precise thickness of 2.3 mm , these thrust bearings are essential for controlling crankshaft end play on F7R and F4R engines. A certified OEM part for Clio Williams, Clio 2 RS, Clio 3 RS, and...
                                                                                                                      €43.51Price
                                                                                                                      Flasque palier ( X2.30 )2.3mm Crankshaft Thrust Washer - Renault Clio RS & Megane RS
                                                                                                                          Ensure the longevity of your bottom end with this genuine Renault crankshaft thrust washer pair . Featuring a precise thickness of 2.3 mm , these thrust bearings are essential for controlling crankshaft end play on F7R and F4R engines. A certified OEM part for Clio Williams, Clio 2 RS, Clio 3 RS, and...
                                                                                                                          €43.51Price
                                                                                                                          En Stock
                                                                                                                          €129.34 Price
                                                                                                                          En Stock
                                                                                                                          €129.34 Price
                                                                                                                          Carter de protection Courroie de distribution Clio RS
                                                                                                                              Pièce empêchant le passage de la courroie d'accessoires dans la distribution Compatible avec Clio 2 RS, Clio 3 RS La mise en place sur Clio 2 nécessite une legere découpe du carter en plastique  Fourni sans les vis, veuillez consulter les produits associés en bas de page
                                                                                                                              €129.34Price
                                                                                                                              Carter de protection Courroie de distribution Clio RS
                                                                                                                                  Pièce empêchant le passage de la courroie d'accessoires dans la distribution Compatible avec Clio 2 RS, Clio 3 RS La mise en place sur Clio 2 nécessite une legere découpe du carter en plastique  Fourni sans les vis, veuillez consulter les produits associés en bas de page
                                                                                                                                  €129.34Price
                                                                                                                                  Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                                                                                                                                      Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                                                                                                                                      €33.94Price
                                                                                                                                      Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                                                                                                                                          Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                                                                                                                                          €33.94Price
                                                                                                                                          En Stock
                                                                                                                                          €47.34 Price
                                                                                                                                          En Stock
                                                                                                                                          €47.34 Price
                                                                                                                                          Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2
                                                                                                                                              Genuine Renault Exhaust Valve - Twingo 2 RS, Twingo R1, Twingo R2 160hp Authentic Renault exhaust valve, ensuring optimal sealing and performance. Specific replacement part for Renault Twingo 2 RS, Twingo R1, and Twingo R2 160hp models. Contributes to proper engine operation and efficient exhaust gas...
                                                                                                                                              €47.34Price
                                                                                                                                              Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2
                                                                                                                                                  Genuine Renault Exhaust Valve - Twingo 2 RS, Twingo R1, Twingo R2 160hp Authentic Renault exhaust valve, ensuring optimal sealing and performance. Specific replacement part for Renault Twingo 2 RS, Twingo R1, and Twingo R2 160hp models. Contributes to proper engine operation and efficient exhaust gas...
                                                                                                                                                  €47.34Price
                                                                                                                                                  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
                                                                                                                                                          €82.45 Price
                                                                                                                                                          En Stock
                                                                                                                                                          €82.45 Price
                                                                                                                                                          Durite d'eau sortie de radiateur Twingo RS R1 et R2
                                                                                                                                                              Durite d'eau sortie de radiateur Twingo RS R1 et R2 Véritable produit d'origine
                                                                                                                                                              €82.45Price
                                                                                                                                                              Durite d'eau sortie de radiateur Twingo RS R1 et R2
                                                                                                                                                                  Durite d'eau sortie de radiateur Twingo RS R1 et R2 Véritable produit d'origine
                                                                                                                                                                  €82.45Price
                                                                                                                                                                  Sonde pression Twingo R2New Genuine Renault Sport Oil Pressure Sensor - Clio R3 & Twingo R2
                                                                                                                                                                      This new oil pressure sensor , from the Renault Sport competition catalog , is a vital safety part for the rally engines of the Renault Clio R3 and Twingo R2 . It is essential for monitoring lubrication and thereby preventing catastrophic engine failures caused by a lack or drop in oil pressure.
                                                                                                                                                                      €195.78Price
                                                                                                                                                                      Sonde pression Twingo R2New Genuine Renault Sport Oil Pressure Sensor - Clio R3 & Twingo R2
                                                                                                                                                                          This new oil pressure sensor , from the Renault Sport competition catalog , is a vital safety part for the rally engines of the Renault Clio R3 and Twingo R2 . It is essential for monitoring lubrication and thereby preventing catastrophic engine failures caused by a lack or drop in oil pressure.
                                                                                                                                                                          €195.78Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €402.96 Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €402.96 Price
                                                                                                                                                                          Convergent boitier filtre assemblé Twingo R2 195cvConvergent boitier filtre assemblé Twingo R2 195cv
                                                                                                                                                                              Convergent boitier filtre assemblé Twingo R2 195cv
                                                                                                                                                                              €402.96Price
                                                                                                                                                                              Convergent boitier filtre assemblé Twingo R2 195cvConvergent boitier filtre assemblé Twingo R2 195cv
                                                                                                                                                                                  Convergent boitier filtre assemblé Twingo R2 195cv
                                                                                                                                                                                  €402.96Price
                                                                                                                                                                                  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
                                                                                                                                                                                          Renault Clio 2 RS Mechanical Throttle Potentiometer (Original Equivalent)Renault Clio 2 RS Mechanical Throttle Potentiometer (Original Equivalent)
                                                                                                                                                                                              Mechanical throttle potentiometer, identical to the original, compatible with Renault Clio 2 RS, Clio 2 Rally, Clio 2 Gr N, and Clio 2 X65 Cup. Optimal performance and precision for your vehicle.
                                                                                                                                                                                              €67.50Price
                                                                                                                                                                                              Renault Clio 2 RS Mechanical Throttle Potentiometer (Original Equivalent)Renault Clio 2 RS Mechanical Throttle Potentiometer (Original Equivalent)
                                                                                                                                                                                                  Mechanical throttle potentiometer, identical to the original, compatible with Renault Clio 2 RS, Clio 2 Rally, Clio 2 Gr N, and Clio 2 X65 Cup. Optimal performance and precision for your vehicle.
                                                                                                                                                                                                  €67.50Price
                                                                                                                                                                                                  Tuyau carburant entre coupling Goodridge et rampe Megane N4
                                                                                                                                                                                                      Tuyau carburant entre coupling Goodridge et rampe Megane N4 Référence: 7711167090
                                                                                                                                                                                                      €146.16Price
                                                                                                                                                                                                      Tuyau carburant entre coupling Goodridge et rampe Megane N4
                                                                                                                                                                                                          Tuyau carburant entre coupling Goodridge et rampe Megane N4 Référence: 7711167090
                                                                                                                                                                                                          €146.16Price
                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                          €69.56 Price
                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                          €69.56 Price
                                                                                                                                                                                                          Flexible à carburant Té / rampe Clio 3 Cup
                                                                                                                                                                                                              Do not risk a fuel system failure mid-session. The Goodridge Tee to fuel rail hose is crucial for the reliability of your Clio 3 x85 Cup . Keeping a worn or inadequate hose directly exposes your engine to critical fuel starvation or severe leak risks. Permanently secure your injection system with this high-precision...
                                                                                                                                                                                                              €69.56Price
                                                                                                                                                                                                              Flexible à carburant Té / rampe Clio 3 Cup
                                                                                                                                                                                                                  Do not risk a fuel system failure mid-session. The Goodridge Tee to fuel rail hose is crucial for the reliability of your Clio 3 x85 Cup . Keeping a worn or inadequate hose directly exposes your engine to critical fuel starvation or severe leak risks. Permanently secure your injection system with this high-precision...
                                                                                                                                                                                                                  €69.56Price
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €27.31 Price
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €27.31 Price
                                                                                                                                                                                                                  Joint Spy Vilebrequin Twingo RS y compris R1 et  R2
                                                                                                                                                                                                                      Joint Spy Vilebrequin Twingo RS y compris R1 et R2 Référence: 770086072
                                                                                                                                                                                                                      €27.31Price
                                                                                                                                                                                                                      Joint Spy Vilebrequin Twingo RS y compris R1 et  R2
                                                                                                                                                                                                                          Joint Spy Vilebrequin Twingo RS y compris R1 et R2 Référence: 770086072
                                                                                                                                                                                                                          €27.31Price
                                                                                                                                                                                                                          Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
                                                                                                                                                                                                                              Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
                                                                                                                                                                                                                              €37.90Price
                                                                                                                                                                                                                              Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
                                                                                                                                                                                                                                  Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
                                                                                                                                                                                                                                  €37.90Price