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Engine Parts & Tuning Hardware

Unleash Your Engine's Power: Performance Parts & Accessories

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

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

Essential Products to Maximize Engine Performance

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

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

Industry-Leading Benchmark Brands

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

Why you should Choose Optimiz Access for Your Engine Upgrades

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

Unleash Your Engine's Full Potential Today

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

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  • Categories: Préparation intérieure
Bague étanchéité arbre à cames Twingo R2Twingo RS (R1/R2) Exhaust Camshaft Oil Seal - Original
      The original Renault exhaust camshaft oil seal is an essential sealing part for your Renault Twingo RS, Twingo R1 , or Twingo R2 . It ensures a tight seal between the camshaft, cylinder head, and valve cover, preserving your engine's performance and reliability.
      €16.92Price
      Bague étanchéité arbre à cames Twingo R2Twingo RS (R1/R2) Exhaust Camshaft Oil Seal - Original
          The original Renault exhaust camshaft oil seal is an essential sealing part for your Renault Twingo RS, Twingo R1 , or Twingo R2 . It ensures a tight seal between the camshaft, cylinder head, and valve cover, preserving your engine's performance and reliability.
          €16.92Price
          En Stock
          €81.58 Price
          En Stock
          €81.58 Price
          Flexible de carburant Té vers rampe Twingo R1 - Clio R3 Max
              Do not let a preventable engine failure ruin your race weekend. This high-pressure fuel hose , an authentic Renault Sport component (references 7711160195 / 7711162420 ), is the critical link between the T-connector and the fuel injector rail . Specifically engineered for Twingo R1,...
              €81.58Price
              Flexible de carburant Té vers rampe Twingo R1 - Clio R3 Max
                  Do not let a preventable engine failure ruin your race weekend. This high-pressure fuel hose , an authentic Renault Sport component (references 7711160195 / 7711162420 ), is the critical link between the T-connector and the fuel injector rail . Specifically engineered for Twingo R1,...
                  €81.58Price
                  En Stock
                  €689.93 Price
                  En Stock
                  €689.93 Price
                  Durite inférieure radiateur Clio 2 Rs et Cup
                      Durite inférieure radiateur Clio 2 Cup Référence: 7711155360
                      €689.93Price
                      Durite inférieure radiateur Clio 2 Rs et Cup
                          Durite inférieure radiateur Clio 2 Cup Référence: 7711155360
                          €689.93Price
                          En Stock
                          €174.00 Price
                          En Stock
                          €174.00 Price
                          Joint de Culasse renforcé Cometic Megane 3 RS 1.7Joint de Culasse renforcé Cometic Megane 3 RS 1.7
                              Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.7 mm 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.
                              €174.00Price
                              Joint de Culasse renforcé Cometic Megane 3 RS 1.7Joint de Culasse renforcé Cometic Megane 3 RS 1.7
                                  Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.7 mm 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.
                                  €174.00Price
                                  Bague étanchéité électrovanne déphasage Twingo RS, R1 et R2Bague étanchéité électrovanne déphasage Twingo RS, R1 et R2
                                      Bague étanchéité électrovanne de déphasage Twingo RS, R1 et R2
                                      €17.09Price
                                      Bague étanchéité électrovanne déphasage Twingo RS, R1 et R2Bague étanchéité électrovanne déphasage Twingo RS, R1 et R2
                                          Bague étanchéité électrovanne de déphasage Twingo RS, R1 et R2
                                          €17.09Price
                                          Electrovanne décalage arbre à cames (dephasage) Clio 3 RS phase 2 et Cup X85 et Megane 3 RS
                                              Camshaft Phasing Solenoid Valve : genuine RENAULT part essential for the proper function and engine performance of your Renault Clio 3 RS Phase 2 and Renault Megane 3 RS . A faulty component leads to power loss and unstable idling. Ensures optimal...
                                              €202.56Price
                                              Electrovanne décalage arbre à cames (dephasage) Clio 3 RS phase 2 et Cup X85 et Megane 3 RS
                                                  Camshaft Phasing Solenoid Valve : genuine RENAULT part essential for the proper function and engine performance of your Renault Clio 3 RS Phase 2 and Renault Megane 3 RS . A faulty component leads to power loss and unstable idling. Ensures optimal...
                                                  €202.56Price
                                                  Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                                      Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                                      €14.95Price
                                                      Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                                          Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                                          €14.95Price
                                                          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
                                                                  Joint de queue de soupape echappement Megane 3 RS et N4Joint de queue de soupape echappement Megane 3 RS et N4
                                                                      Joint de queue de soupape echappement Megane 3 RS et N4 Vendu à l'unité Véritable produit d'origine
                                                                      €7.80Price
                                                                      Joint de queue de soupape echappement Megane 3 RS et N4Joint de queue de soupape echappement Megane 3 RS et N4
                                                                          Joint de queue de soupape echappement Megane 3 RS et N4 Vendu à l'unité Véritable produit d'origine
                                                                          €7.80Price
                                                                          En Stock
                                                                          €122.00 Price
                                                                          En Stock
                                                                          €122.00 Price
                                                                          ARP Uprated Rod Bolts | Renault Clio & Megane RS
                                                                              Protect your bottom end assembly against high-RPM failure with this premium Uprated ARP Rod Bolts Kit for Renault Clio 16S, Williams, Clio 2 3 RS, and Megane 2 3 RS , commercialized under the international part number ARP-216-6301 . Forged from premium ARP...
                                                                              €122.00Price
                                                                              ARP Uprated Rod Bolts | Renault Clio & Megane RS
                                                                                  Protect your bottom end assembly against high-RPM failure with this premium Uprated ARP Rod Bolts Kit for Renault Clio 16S, Williams, Clio 2 3 RS, and Megane 2 3 RS , commercialized under the international part number ARP-216-6301 . Forged from premium ARP...
                                                                                  €122.00Price
                                                                                  Goodridge braided stainless steel tank-to-Tee fuel line part 7711160196 for Renault Twingo R1 R2 & Clio R3.
                                                                                      Do not risk a sudden drop in fuel pressure during a crucial rally stage, a highly inflammable fuel leak underneath your chassis, or an immediate technical disqualification during safety scrutineering. The genuine Goodridge fuel tank-to-Tee piece braided line , carrying the...
                                                                                      €119.40Price
                                                                                      Goodridge braided stainless steel tank-to-Tee fuel line part 7711160196 for Renault Twingo R1 R2 & Clio R3.
                                                                                          Do not risk a sudden drop in fuel pressure during a crucial rally stage, a highly inflammable fuel leak underneath your chassis, or an immediate technical disqualification during safety scrutineering. The genuine Goodridge fuel tank-to-Tee piece braided line , carrying the...
                                                                                          €119.40Price
                                                                                          Vis Fixation Volant Moteur
                                                                                              Secure the transmission of power from your crankshaft to your clutch assembly with this heavy-duty Flywheel Fixing Bolt for the Renault Clio 16S, Williams, Clio 2 RS, and Clio 3 RS . This high-tensile specialist hardware is critical to enduring harsh rev matches and the...
                                                                                              €5.64Price
                                                                                              Vis Fixation Volant Moteur
                                                                                                  Secure the transmission of power from your crankshaft to your clutch assembly with this heavy-duty Flywheel Fixing Bolt for the Renault Clio 16S, Williams, Clio 2 RS, and Clio 3 RS . This high-tensile specialist hardware is critical to enduring harsh rev matches and the...
                                                                                                  €5.64Price
                                                                                                  En Stock
                                                                                                  €122.62 Price
                                                                                                  En Stock
                                                                                                  €122.62 Price
                                                                                                  Batterie sèche 12V-24Ah
                                                                                                      Batterie sèche 12V-24Ah Référence: 7711127895 Durée de vie en floating jusqu'à 5 ans Batterie VRLA d'usage général Grilles plomb-calcium pour une durée de vie améliorée Construction en fibres de verre microporeuses sans acide libre Recombinaison de gaz Fabriqué dans le monde entier Bonne récupération d'une décharge...
                                                                                                      €122.62Price
                                                                                                      Batterie sèche 12V-24Ah
                                                                                                          Batterie sèche 12V-24Ah Référence: 7711127895 Durée de vie en floating jusqu'à 5 ans Batterie VRLA d'usage général Grilles plomb-calcium pour une durée de vie améliorée Construction en fibres de verre microporeuses sans acide libre Recombinaison de gaz Fabriqué dans le monde entier Bonne récupération d'une décharge...
                                                                                                          €122.62Price
                                                                                                          En Stock
                                                                                                          €84.00 Price
                                                                                                          En Stock
                                                                                                          €84.00 Price
                                                                                                          Original RENAULT Injector for Megane 3 RSOriginal RENAULT Injector for Megane 3 RS
                                                                                                              Don't let your Renault Megane 3 RS lose its vigor! This original RENAULT injector is essential for maintaining your engine's optimal performance. Avoid excessive fuel consumption and a drop in power by choosing the quality and reliability of a part specifically designed for your sports vehicle. You can find associated complementary products (notably the...
                                                                                                              €84.00Price
                                                                                                              Original RENAULT Injector for Megane 3 RSOriginal RENAULT Injector for Megane 3 RS
                                                                                                                  Don't let your Renault Megane 3 RS lose its vigor! This original RENAULT injector is essential for maintaining your engine's optimal performance. Avoid excessive fuel consumption and a drop in power by choosing the quality and reliability of a part specifically designed for your sports vehicle. You can find associated complementary products (notably the...
                                                                                                                  €84.00Price
                                                                                                                  En Stock
                                                                                                                  €174.00 Price
                                                                                                                  En Stock
                                                                                                                  €174.00 Price
                                                                                                                  Joint de Culasse renforcé Cometic Megane 3 RS 1.9Joint de Culasse renforcé Cometic Megane 3 RS 1.9
                                                                                                                      Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.9 mm 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.
                                                                                                                      €174.00Price
                                                                                                                      Joint de Culasse renforcé Cometic Megane 3 RS 1.9Joint de Culasse renforcé Cometic Megane 3 RS 1.9
                                                                                                                          Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.9 mm 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.
                                                                                                                          €174.00Price
                                                                                                                          Divergent boitier filtre assemblé Twingo R2
                                                                                                                              Optimize the air intake of your Renault Twingo R2 (195/205hp) with this official RENAULT SPORT air filter housing diverter . Developed for competition, this part with reference 7711167591 is essential for maximizing airflow and ensuring maximum engine power across the entire operating range. An indispensable addition for engine performance .
                                                                                                                              €511.63Price
                                                                                                                              Divergent boitier filtre assemblé Twingo R2
                                                                                                                                  Optimize the air intake of your Renault Twingo R2 (195/205hp) with this official RENAULT SPORT air filter housing diverter . Developed for competition, this part with reference 7711167591 is essential for maximizing airflow and ensuring maximum engine power across the entire operating range. An indispensable addition for engine performance .
                                                                                                                                  €511.63Price
                                                                                                                                  Collection de Ségments (X82.70)
                                                                                                                                      Ensure a perfect engine seal with this genuine Renault piston ring set . Specifically designed for the F4R and F4Rt engines found in the Clio 2 RS , Clio 3 RS , and Megane 3 RS , this kit is the crucial element for restoring...
                                                                                                                                      €37.55Price
                                                                                                                                      Collection de Ségments (X82.70)
                                                                                                                                          Ensure a perfect engine seal with this genuine Renault piston ring set . Specifically designed for the F4R and F4Rt engines found in the Clio 2 RS , Clio 3 RS , and Megane 3 RS , this kit is the crucial element for restoring...
                                                                                                                                          €37.55Price
                                                                                                                                          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
                                                                                                                                                  En Stock
                                                                                                                                                  €22.74 Price
                                                                                                                                                  En Stock
                                                                                                                                                  €22.74 Price
                                                                                                                                                  Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                                                                                                                                                      Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                                                                                                                                                      €22.74Price
                                                                                                                                                      Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                                                                                                                                                          Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                                                                                                                                                          €22.74Price
                                                                                                                                                          Poulie accessoire filtrante (damper) Twingo RS, R1 et R2Poulie accessoire filtrante (damper) Twingo RS, R1 et R2
                                                                                                                                                              Poulie accessoire filtrante Twingo RS, R1 et R2 7711167301
                                                                                                                                                              €127.10Price
                                                                                                                                                              Poulie accessoire filtrante (damper) Twingo RS, R1 et R2Poulie accessoire filtrante (damper) Twingo RS, R1 et R2
                                                                                                                                                                  Poulie accessoire filtrante Twingo RS, R1 et R2 7711167301
                                                                                                                                                                  €127.10Price
                                                                                                                                                                  Joint spy Vilebrequin côté distribution R21 turboRenault Crankshaft Oil Seal, Timing Side - Formula Renault / Renault 21 2L Turbo
                                                                                                                                                                      Renault Crankshaft Oil Seal, Timing Side - Formula Renault / R21 2L Turbo Ensure your engine's sealing with this original Renault crankshaft oil seal. Designed for Formula Renault and Renault 21 2L Turbo, it prevents oil leaks and guarantees your engine's longevity. Original Renault Part Crankshaft oil seal, timing side ...
                                                                                                                                                                      €20.87Price
                                                                                                                                                                      Joint spy Vilebrequin côté distribution R21 turboRenault Crankshaft Oil Seal, Timing Side - Formula Renault / Renault 21 2L Turbo
                                                                                                                                                                          Renault Crankshaft Oil Seal, Timing Side - Formula Renault / R21 2L Turbo Ensure your engine's sealing with this original Renault crankshaft oil seal. Designed for Formula Renault and Renault 21 2L Turbo, it prevents oil leaks and guarantees your engine's longevity. Original Renault Part Crankshaft oil seal, timing side ...
                                                                                                                                                                          €20.87Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €133.39 Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €133.39 Price
                                                                                                                                                                          Joint de Culasse Cometic Clio 16S /WilliamsJoint de Culasse Cometic Clio 16S /Williams
                                                                                                                                                                              Joint de culasse Cometic. Haute résistance. Alesage 83 mm , Epaisseur 0.76 Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. Nous contacter pour connaitre les épaisseurs possibles D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                                                                                                              €133.39Price
                                                                                                                                                                              Joint de Culasse Cometic Clio 16S /WilliamsJoint de Culasse Cometic Clio 16S /Williams
                                                                                                                                                                                  Joint de culasse Cometic. Haute résistance. Alesage 83 mm , Epaisseur 0.76 Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. Nous contacter pour connaitre les épaisseurs possibles D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                                                                                                                  €133.39Price
                                                                                                                                                                                  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
                                                                                                                                                                                          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
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €198.25 Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €198.25 Price
                                                                                                                                                                                                  Kit Joint Refection moteur Origine Clio 3 RS
                                                                                                                                                                                                      Ensemble de joints nécéssaire au bon remontage du moteur de Clio 3 RS Véritable produit d'origine
                                                                                                                                                                                                      €198.25Price
                                                                                                                                                                                                      Kit Joint Refection moteur Origine Clio 3 RS
                                                                                                                                                                                                          Ensemble de joints nécéssaire au bon remontage du moteur de Clio 3 RS Véritable produit d'origine
                                                                                                                                                                                                          €198.25Price
                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                          €37.52 Price
                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                          €37.52 Price
                                                                                                                                                                                                          Raccord 90° de rampe d'injection Clio Gr N
                                                                                                                                                                                                              Secure your fuel system with this official RENAULT SPORT 90° fuel rail fitting . A key component from the competition catalog for the Renault Clio 2 RS Group N , this fitting ensures constant flow and absolute sealing under pressure. Do not let a standard component compromise the safety of your racing setup or your track day...
                                                                                                                                                                                                              €37.52Price
                                                                                                                                                                                                              Raccord 90° de rampe d'injection Clio Gr N
                                                                                                                                                                                                                  Secure your fuel system with this official RENAULT SPORT 90° fuel rail fitting . A key component from the competition catalog for the Renault Clio 2 RS Group N , this fitting ensures constant flow and absolute sealing under pressure. Do not let a standard component compromise the safety of your racing setup or your track day...
                                                                                                                                                                                                                  €37.52Price