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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
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
          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
                                  Renault Camshaft Dephaser Seal – Clio 2/3 RS & Mégane 3 RSRenault Camshaft Dephaser Seal – Clio 2/3 RS & Mégane 3 RS
                                      An aged or damaged seal around the camshaft timing solenoid can lead to oil leaks and additional engine maintenance. The Renault camshaft dephaser solenoid oil seal (reference 7700106385) is designed to provide sealing at the solenoid mounting point on compatible variable...
                                      €16.84Price
                                      Renault Camshaft Dephaser Seal – Clio 2/3 RS & Mégane 3 RSRenault Camshaft Dephaser Seal – Clio 2/3 RS & Mégane 3 RS
                                          An aged or damaged seal around the camshaft timing solenoid can lead to oil leaks and additional engine maintenance. The Renault camshaft dephaser solenoid oil seal (reference 7700106385) is designed to provide sealing at the solenoid mounting point on compatible variable...
                                          €16.84Price
                                          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
                                                          €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
                                                                  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
                                                                          €70.25 Price
                                                                          En Stock
                                                                          €70.25 Price
                                                                          Blue Crankshaft Half-Bearing Set
                                                                              Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                                                                              €70.25Price
                                                                              Blue Crankshaft Half-Bearing Set
                                                                                  Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                                                                                  €70.25Price
                                                                                  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
                                                                                          En Stock
                                                                                          €66.99 Price
                                                                                          En Stock
                                                                                          €66.99 Price
                                                                                          Injecteur Clio 3 RS et X85 Cup
                                                                                              The original Renault injector is an essential part to ensure precise fuel injection in the engine of your Renault Clio 3 RS and Renault Clio 3 X85 Cup . It ensures optimal combustion and reliable engine performance.
                                                                                              €66.99Price
                                                                                              Injecteur Clio 3 RS et X85 Cup
                                                                                                  The original Renault injector is an essential part to ensure precise fuel injection in the engine of your Renault Clio 3 RS and Renault Clio 3 X85 Cup . It ensures optimal combustion and reliable engine performance.
                                                                                                  €66.99Price
                                                                                                  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
                                                                                                          Motul 300V Competition 10W40 2L Engine Oil - Sports Cars
                                                                                                              Motul 300V Competition Engine Oil 10W40 2L - Performance and Protection for Classic and Modern Sports Cars Don't let the age of your sports car impact its performance. engine oil is specially formulated to offer optimal protection and increased performance, suitable for demanding classic and modern engines. 2-liter can. <p...
                                                                                                              €39.99Price
                                                                                                              Motul 300V Competition 10W40 2L Engine Oil - Sports Cars
                                                                                                                  Motul 300V Competition Engine Oil 10W40 2L - Performance and Protection for Classic and Modern Sports Cars Don't let the age of your sports car impact its performance. engine oil is specially formulated to offer optimal protection and increased performance, suitable for demanding classic and modern engines. 2-liter can. <p...
                                                                                                                  €39.99Price
                                                                                                                  Entretoise galet distribution culasse Clio 2 RS y compris Gr N et X65 CupEntretoise galet distribution culasse Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                      Entretoise galet distribution culasse Clio Gr N 8200607654
                                                                                                                      €12.06Price
                                                                                                                      Entretoise galet distribution culasse Clio 2 RS y compris Gr N et X65 CupEntretoise galet distribution culasse Clio 2 RS y compris Gr N et X65 Cup
                                                                                                                          Entretoise galet distribution culasse Clio Gr N 8200607654
                                                                                                                          €12.06Price
                                                                                                                          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
                                                                                                                                  En Stock
                                                                                                                                  €12.00 Price
                                                                                                                                  En Stock
                                                                                                                                  €12.00 Price
                                                                                                                                  Bidon de 2 L ELF 700 ST 10w40Bidon de 2 L ELF 700 ST 10w40
                                                                                                                                      Bidon de 2L de ELF 700 ST 10W40 Huile Préconisé par Renault l'entretien de la gamme RS comprenant Clio 16S et Williams, Twingo RS, Clio RS, Megane RS..
                                                                                                                                      €12.00Price
                                                                                                                                      Bidon de 2 L ELF 700 ST 10w40Bidon de 2 L ELF 700 ST 10w40
                                                                                                                                          Bidon de 2L de ELF 700 ST 10W40 Huile Préconisé par Renault l'entretien de la gamme RS comprenant Clio 16S et Williams, Twingo RS, Clio RS, Megane RS..
                                                                                                                                          €12.00Price
                                                                                                                                          En Stock
                                                                                                                                          €74.21 Price
                                                                                                                                          En Stock
                                                                                                                                          €74.21 Price
                                                                                                                                          Genuine Renault Crankshaft Sprocket - Multi-RS ModelsGenuine Renault Crankshaft Sprocket - Multi-RS Models
                                                                                                                                              Genuine Renault Crankshaft Sprocket - Multi-RS Models Ensure the performance and reliability of your engine with this genuine Renault crankshaft sprocket. Compatible with Clio 2 RS, Clio 3 RS, Megane 2/3 RS and competition models. Essential part for timing adjustment.
                                                                                                                                              €74.21Price
                                                                                                                                              Genuine Renault Crankshaft Sprocket - Multi-RS ModelsGenuine Renault Crankshaft Sprocket - Multi-RS Models
                                                                                                                                                  Genuine Renault Crankshaft Sprocket - Multi-RS Models Ensure the performance and reliability of your engine with this genuine Renault crankshaft sprocket. Compatible with Clio 2 RS, Clio 3 RS, Megane 2/3 RS and competition models. Essential part for timing adjustment.
                                                                                                                                                  €74.21Price
                                                                                                                                                  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
                                                                                                                                                          Kit Joint Spy Arbres à Cames + Vis de Poulie Clio 2 RS
                                                                                                                                                              Kit Joint Spy Arbres à Cames + Vis de Poulie Kit indispensable pour proceder au changement de la distribution sur Clio 2 RS
                                                                                                                                                              €54.58Price
                                                                                                                                                              Kit Joint Spy Arbres à Cames + Vis de Poulie Clio 2 RS
                                                                                                                                                                  Kit Joint Spy Arbres à Cames + Vis de Poulie Kit indispensable pour proceder au changement de la distribution sur Clio 2 RS
                                                                                                                                                                  €54.58Price
                                                                                                                                                                  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
                                                                                                                                                                          €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
                                                                                                                                                                                  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
                                                                                                                                                                                          Renault Sport camshaft alignment tool for F4R, F4Rt, and K4M engines, SKU: 1496.Camshaft Timing Tool | Renault Clio, Megane, Twingo RS
                                                                                                                                                                                              Protect your engine block against catastrophic mechanical failure during structural timing belt overhauls with this professional RENAULT Camshaft Timing Tool . Specifically engineered to slot into the rear alignment grooves of Renault Sport twin-cam engines (covering F4R,...
                                                                                                                                                                                              €96.37Price
                                                                                                                                                                                              Renault Sport camshaft alignment tool for F4R, F4Rt, and K4M engines, SKU: 1496.Camshaft Timing Tool | Renault Clio, Megane, Twingo RS
                                                                                                                                                                                                  Protect your engine block against catastrophic mechanical failure during structural timing belt overhauls with this professional RENAULT Camshaft Timing Tool . Specifically engineered to slot into the rear alignment grooves of Renault Sport twin-cam engines (covering F4R,...
                                                                                                                                                                                                  €96.37Price
                                                                                                                                                                                                  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
                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                          €112.69 Price
                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                          €112.69 Price
                                                                                                                                                                                                          Vis de Culasse (x10)
                                                                                                                                                                                                              Ensemble de vis de culasse pour Clio 3 RS, Megane 2 RS, Megane 3 RS, Clio 2 RS et Megane 2 RS Véritable produit d'origine
                                                                                                                                                                                                              €112.69Price
                                                                                                                                                                                                              Vis de Culasse (x10)
                                                                                                                                                                                                                  Ensemble de vis de culasse pour Clio 3 RS, Megane 2 RS, Megane 3 RS, Clio 2 RS et Megane 2 RS Véritable produit d'origine
                                                                                                                                                                                                                  €112.69Price
                                                                                                                                                                                                                  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
                                                                                                                                                                                                                          €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