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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
En Stock
€158.84 €252.12 Regular price -37% off Price
En Stock
€158.84 €252.12 Regular price -37% off Price
Kit Distribution origine Clio 2 RSGenuine Renault Timing Kit - Clio 2 RS / Gr N / Cup
      Ensure your engine's longevity with this genuine RENAULT timing belt kit , engineered for the high-performance demands of the Renault Clio 2 RS , as well as Group N and X65 Cup racing versions. This complete pack guarantees maintenance that meets Renault Sport standards. ...
      €158.84€252.12Regular price-37% offPrice
      Kit Distribution origine Clio 2 RSGenuine Renault Timing Kit - Clio 2 RS / Gr N / Cup
          Ensure your engine's longevity with this genuine RENAULT timing belt kit , engineered for the high-performance demands of the Renault Clio 2 RS , as well as Group N and X65 Cup racing versions. This complete pack guarantees maintenance that meets Renault Sport standards. ...
          €158.84€252.12Regular price-37% offPrice
          En Stock
          €81.65 Price
          En Stock
          €81.65 Price
          Bielle Twingo RS R1 et R2 160Bielle Twingo RS R1 et R2 160
              Connecting Rod for Twingo RS R1 and R2 160: Enhance the durability and performance of your engine with this robust connecting rod, designed for extreme conditions and easy installation.
              €81.65Price
              Bielle Twingo RS R1 et R2 160Bielle Twingo RS R1 et R2 160
                  Connecting Rod for Twingo RS R1 and R2 160: Enhance the durability and performance of your engine with this robust connecting rod, designed for extreme conditions and easy installation.
                  €81.65Price
                  Mecacyl CR 100 ml
                      Protect your high-performance engine's internal components with the Mecacyl CR 100 ml engine hyper-lubricant. This unique surface treatment mixes directly with your fresh oil to drastically reduce internal friction, lower operating temperatures, and optimize engine...
                      €28.50Price
                      Mecacyl CR 100 ml
                          Protect your high-performance engine's internal components with the Mecacyl CR 100 ml engine hyper-lubricant. This unique surface treatment mixes directly with your fresh oil to drastically reduce internal friction, lower operating temperatures, and optimize engine...
                          €28.50Price
                          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
                                  Raccord Pompe à essence Clio GrN
                                      Renault Clio 2 Group N Fuel Pump Connector , a component intended for the fuel supply system of vehicles configured for Group N applications. Vehicle brand: Renault Model: Clio 2 Application: Group N Part type: Fuel pump connector ...
                                      €50.45Price
                                      Raccord Pompe à essence Clio GrN
                                          Renault Clio 2 Group N Fuel Pump Connector , a component intended for the fuel supply system of vehicles configured for Group N applications. Vehicle brand: Renault Model: Clio 2 Application: Group N Part type: Fuel pump connector ...
                                          €50.45Price
                                          Motul Engine Flush 300mL Pre-Oil Change for Sports Engines
                                              Optimize your engine's health with Motul Engine Flush (300mL). This high-performance pre-oil change treatment is essential for removing deposits, sludge, and combustion residues before introducing fresh oil. Specially formulated for performance...
                                              €10.75Price
                                              Motul Engine Flush 300mL Pre-Oil Change for Sports Engines
                                                  Optimize your engine's health with Motul Engine Flush (300mL). This high-performance pre-oil change treatment is essential for removing deposits, sludge, and combustion residues before introducing fresh oil. Specially formulated for performance...
                                                  €10.75Price
                                                  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
                                                          En Stock
                                                          €28.80 Price
                                                          En Stock
                                                          €28.80 Price
                                                          Courroie accessoire Clio Gr N ou Rs avec montage type Ragnotti
                                                              Renault Clio R3 Max Accessory Belt (128mm Pulley) High-performance accessory belt for Renault Clio R3 Max with 128mm crankshaft pulley. Optimize your race Clio's transmission. Discover complementary products at the bottom of the page.
                                                              €28.80Price
                                                              Courroie accessoire Clio Gr N ou Rs avec montage type Ragnotti
                                                                  Renault Clio R3 Max Accessory Belt (128mm Pulley) High-performance accessory belt for Renault Clio R3 Max with 128mm crankshaft pulley. Optimize your race Clio's transmission. Discover complementary products at the bottom of the page.
                                                                  €28.80Price
                                                                  En Stock
                                                                  €54.41 Price
                                                                  En Stock
                                                                  €54.41 Price
                                                                  Cache bouchons arbres à cames moteur F4R
                                                                      Cache bouchons arbres à cames moteur F4R Kit de 2 plaques de fermeture moteur 7711155481
                                                                      €54.41Price
                                                                      Cache bouchons arbres à cames moteur F4R
                                                                          Cache bouchons arbres à cames moteur F4R Kit de 2 plaques de fermeture moteur 7711155481
                                                                          €54.41Price
                                                                          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
                                                                                  En Stock
                                                                                  €99.36 Price
                                                                                  En Stock
                                                                                  €99.36 Price
                                                                                  Coussinets bielle ( X48 ) Clio 2 RS Mégane 2 RSCoussinets bielle ( X48 ) Clio 2 RS Mégane 2 RS
                                                                                      Coussinets bielle ( X=48 ) Le prix est pour 8 Produit remplacé, vous trouverez le produit de remplacement ci dessous ⬇️
                                                                                      €99.36Price
                                                                                      Coussinets bielle ( X48 ) Clio 2 RS Mégane 2 RSCoussinets bielle ( X48 ) Clio 2 RS Mégane 2 RS
                                                                                          Coussinets bielle ( X=48 ) Le prix est pour 8 Produit remplacé, vous trouverez le produit de remplacement ci dessous ⬇️
                                                                                          €99.36Price
                                                                                          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
                                                                                                  Dispo selon configuration
                                                                                                  €67.23 €74.70 Regular price -10% off Price
                                                                                                  Dispo selon configuration
                                                                                                  €67.23 €74.70 Regular price -10% off Price
                                                                                                  Kit Vidange Elf SXR 5w40 Clio 4 RS - Megane 4 GTKit Vidange Elf SXR 5w40 Clio 4 RS - Megane 4 GT
                                                                                                    • Pack
                                                                                                    Kit Vidange Elf Evolution SXR comprenant 3 bidons de 2 Litres d'huile Elf Evolution SXR 5w40 (préconisation Constructeur), 1 filtre à huile Renault et 1 joint de vidange
                                                                                                    €67.23€74.70Regular price-10% offPrice
                                                                                                    Kit Vidange Elf SXR 5w40 Clio 4 RS - Megane 4 GTKit Vidange Elf SXR 5w40 Clio 4 RS - Megane 4 GT
                                                                                                      • Pack
                                                                                                      Kit Vidange Elf Evolution SXR comprenant 3 bidons de 2 Litres d'huile Elf Evolution SXR 5w40 (préconisation Constructeur), 1 filtre à huile Renault et 1 joint de vidange
                                                                                                      €67.23€74.70Regular price-10% offPrice
                                                                                                      En Stock
                                                                                                      €3.00 Price
                                                                                                      En Stock
                                                                                                      €3.00 Price
                                                                                                      Joint bimatiere 16mm
                                                                                                          The 16mm bimaterial gasket provides a reliable and durable sealing solution, suitable for various industrial, automotive, and domestic applications . Made from robust materials, it ensures a precise fit, easy installation, and optimal performance even under demanding conditions such as high temperatures and pressures.
                                                                                                          €3.00Price
                                                                                                          Joint bimatiere 16mm
                                                                                                              The 16mm bimaterial gasket provides a reliable and durable sealing solution, suitable for various industrial, automotive, and domestic applications . Made from robust materials, it ensures a precise fit, easy installation, and optimal performance even under demanding conditions such as high temperatures and pressures.
                                                                                                              €3.00Price
                                                                                                              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
                                                                                                                      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
                                                                                                                              €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
                                                                                                                                      Joint répartiteur admission ( plenum ) Twingo 2 RS, R1 et R2
                                                                                                                                          Joint répartiteur admission Twingo RS R1 et R2
                                                                                                                                          €26.36Price
                                                                                                                                          Joint répartiteur admission ( plenum ) Twingo 2 RS, R1 et R2
                                                                                                                                              Joint répartiteur admission Twingo RS R1 et R2
                                                                                                                                              €26.36Price
                                                                                                                                              En Stock
                                                                                                                                              €30.64 Price
                                                                                                                                              En Stock
                                                                                                                                              €30.64 Price
                                                                                                                                              Joint tournant (joint spy vilebrequin coté volant moteur)
                                                                                                                                                  The original Renault flywheel side oil seal is an essential part to ensure engine sealing for your Renault Clio 2 RS, Gr N, X65 Cup, Clio 3 RS, R3, X85 Cup, Mégane 2 RS, and Mégane 3 RS . Prevent oil leaks and maintain your vehicle's performance with this authentic replacement part.
                                                                                                                                                  €30.64Price
                                                                                                                                                  Joint tournant (joint spy vilebrequin coté volant moteur)
                                                                                                                                                      The original Renault flywheel side oil seal is an essential part to ensure engine sealing for your Renault Clio 2 RS, Gr N, X65 Cup, Clio 3 RS, R3, X85 Cup, Mégane 2 RS, and Mégane 3 RS . Prevent oil leaks and maintain your vehicle's performance with this authentic replacement part.
                                                                                                                                                      €30.64Price
                                                                                                                                                      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
                                                                                                                                                          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
                                                                                                                                                              ELF SXR 5w40 Motor Oil (2L) - Renault, Sport & PremiumELF SXR 5w40 Motor Oil (2L) - Renault, Sport & Premium
                                                                                                                                                                  Preserve the health of your high-output engine block with the premium ELF Evolution 900 SXR 5w40 Motor Oil in a convenient 2-Litre bottle . This factory-grade synthetic technology lubricant is engineered to provide maximum anti-wear protection and optimal lubrication under...
                                                                                                                                                                  €20.15Price
                                                                                                                                                                  ELF SXR 5w40 Motor Oil (2L) - Renault, Sport & PremiumELF SXR 5w40 Motor Oil (2L) - Renault, Sport & Premium
                                                                                                                                                                      Preserve the health of your high-output engine block with the premium ELF Evolution 900 SXR 5w40 Motor Oil in a convenient 2-Litre bottle . This factory-grade synthetic technology lubricant is engineered to provide maximum anti-wear protection and optimal lubrication under...
                                                                                                                                                                      €20.15Price
                                                                                                                                                                      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
                                                                                                                                                                              Bidon de 5L de ELF HTX Collection 20w50ELF HTX Collection 20w50 5L - Porsche & Alpine Classic
                                                                                                                                                                                  Protect the original powertrain of your automotive icon with ELF HTX Collection 20w50 mineral engine oil in a 5L jug . Specifically formulated for vintage mechanics and classic historic engines, this high-end formula guarantees consistent oil pressure and unmatched...
                                                                                                                                                                                  €63.62Price
                                                                                                                                                                                  Bidon de 5L de ELF HTX Collection 20w50ELF HTX Collection 20w50 5L - Porsche & Alpine Classic
                                                                                                                                                                                      Protect the original powertrain of your automotive icon with ELF HTX Collection 20w50 mineral engine oil in a 5L jug . Specifically formulated for vintage mechanics and classic historic engines, this high-end formula guarantees consistent oil pressure and unmatched...
                                                                                                                                                                                      €63.62Price
                                                                                                                                                                                      Motul 300V Competition 5W40 2L Engine Oil - RS, Audi, VW, Porsche, Mercedes (Racing)
                                                                                                                                                                                          Motul 300V Competition Engine Oil 5W40 2L - Ultimate Performance for Racing Don't let your competition vehicle's performance be compromised. engine oil is the ultimate choice for maximum protection and unmatched track performance. Specifically developed formula for extreme racing demands. 2-liter can. Also discover our...
                                                                                                                                                                                          €39.99Price
                                                                                                                                                                                          Motul 300V Competition 5W40 2L Engine Oil - RS, Audi, VW, Porsche, Mercedes (Racing)
                                                                                                                                                                                              Motul 300V Competition Engine Oil 5W40 2L - Ultimate Performance for Racing Don't let your competition vehicle's performance be compromised. engine oil is the ultimate choice for maximum protection and unmatched track performance. Specifically developed formula for extreme racing demands. 2-liter can. Also discover our...
                                                                                                                                                                                              €39.99Price
                                                                                                                                                                                              En Stock
                                                                                                                                                                                              €139.18 €231.97 Regular price -40% off Price
                                                                                                                                                                                              En Stock
                                                                                                                                                                                              €139.18 €231.97 Regular price -40% off Price
                                                                                                                                                                                              Kit Distribution Clio 1.8 16S et WilliamsKit Distribution Clio 1.8 16S et Williams
                                                                                                                                                                                                  Kit distribution Renault pour Clio 1.8 16S Le kit contient la courroie et les 2 galets En cas de doute nous consulter.
                                                                                                                                                                                                  €139.18€231.97Regular price-40% offPrice
                                                                                                                                                                                                  Kit Distribution Clio 1.8 16S et WilliamsKit Distribution Clio 1.8 16S et Williams
                                                                                                                                                                                                      Kit distribution Renault pour Clio 1.8 16S Le kit contient la courroie et les 2 galets En cas de doute nous consulter.
                                                                                                                                                                                                      €139.18€231.97Regular price-40% offPrice
                                                                                                                                                                                                      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