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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: Circuit d'air
  • Categories: Entretien
  • Categories: Préparation intérieure
  • Categories: Suralimentation (Turbo)
En Stock
€19.30 €25.79 Regular price -€6.49 off Price
En Stock
€19.30 €25.79 Regular price -€6.49 off Price
Courroie accessoire Twingo RS et R1
      Don't risk an unexpected breakdown! This summary concerns the Genuine RENAULT Accessory Belt for the Renault Twingo 2 RS and Renault Wind 1.6 16v models. This is an essential part for the smooth running of your sports engine. Failing to replace it in time risks costly damage. ...
      €19.30€25.79Regular price-€6.49 offPrice
      Courroie accessoire Twingo RS et R1
          Don't risk an unexpected breakdown! This summary concerns the Genuine RENAULT Accessory Belt for the Renault Twingo 2 RS and Renault Wind 1.6 16v models. This is an essential part for the smooth running of your sports engine. Failing to replace it in time risks costly damage. ...
          €19.30€25.79Regular price-€6.49 offPrice
          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
                  €197.06 Price
                  En Stock
                  €197.06 Price
                  Poulie de dephasage Clio 3 RS - Megane 3 RSPoulie de dephasage Clio 3 RS - Megane 3 RS
                      Poulie de déphasage Veritable Produit Renault vendu dans sa boite
                      €197.06Price
                      Poulie de dephasage Clio 3 RS - Megane 3 RSPoulie de dephasage Clio 3 RS - Megane 3 RS
                          Poulie de déphasage Veritable Produit Renault vendu dans sa boite
                          €197.06Price
                          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
                                  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
                                          €133.31 Price
                                          En Stock
                                          €133.31 Price
                                          Joint de Culasse renforcé CometicJoint de Culasse renforcé Cometic
                                              Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 0.75mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                              €133.31Price
                                              Joint de Culasse renforcé CometicJoint de Culasse renforcé Cometic
                                                  Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 0.75mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                  €133.31Price
                                                  En Stock
                                                  €720.00 Price
                                                  En Stock
                                                  €720.00 Price
                                                  Echangeur Airtec Megane 3 RSEchangeur Airtec Megane 3 RS
                                                      Échangeur Airtec spécifique à la Mégane 3 RS. Échangeur de 60 mm se montant en lieu et place sans modifications et équipé d'une tôle permettant de diriger un plus gros flux d'air vers l’échangeur. Disponible en gris
                                                      €720.00Price
                                                      Echangeur Airtec Megane 3 RSEchangeur Airtec Megane 3 RS
                                                          Échangeur Airtec spécifique à la Mégane 3 RS. Échangeur de 60 mm se montant en lieu et place sans modifications et équipé d'une tôle permettant de diriger un plus gros flux d'air vers l’échangeur. Disponible en gris
                                                          €720.00Price
                                                          Genuine RENAULT Oil Drain Plug - All Clio/Mégane RS Models
                                                              Protect your engine against critical leaks! Replace your genuine oil drain plug with this RENAULT reference, essential for all Clio RS , Mégane RS models and competition derivatives (Gr N, R3, X85 Cup). A quality screw guarantees the seal of the oil pan (sump), preventing a ...
                                                              €4.72Price
                                                              Genuine RENAULT Oil Drain Plug - All Clio/Mégane RS Models
                                                                  Protect your engine against critical leaks! Replace your genuine oil drain plug with this RENAULT reference, essential for all Clio RS , Mégane RS models and competition derivatives (Gr N, R3, X85 Cup). A quality screw guarantees the seal of the oil pan (sump), preventing a ...
                                                                  €4.72Price
                                                                  Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65
                                                                      Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65 Référence : 7711065381
                                                                      €0.23Price
                                                                      Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65
                                                                          Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65 Référence : 7711065381
                                                                          €0.23Price
                                                                          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
                                                                                  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
                                                                                          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
                                                                                              €1.32 Price
                                                                                              En Stock
                                                                                              €1.32 Price
                                                                                              Joint Vidange Boite diam 16
                                                                                                  Gearbox Drain Plug Washer – 16 mm The Renault drain plug washer, reference 7703062062 , is a sealing component designed to help prevent oil leaks at a compatible drain...
                                                                                                  €1.32Price
                                                                                                  Joint Vidange Boite diam 16
                                                                                                      Gearbox Drain Plug Washer – 16 mm The Renault drain plug washer, reference 7703062062 , is a sealing component designed to help prevent oil leaks at a compatible drain...
                                                                                                      €1.32Price
                                                                                                      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
                                                                                                              €20.80 Price
                                                                                                              En Stock
                                                                                                              €20.80 Price
                                                                                                              Exhaust Manifold Gasket | Renault Twingo 2 RS / R2
                                                                                                                  Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
                                                                                                                  €20.80Price
                                                                                                                  Exhaust Manifold Gasket | Renault Twingo 2 RS / R2
                                                                                                                      Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
                                                                                                                      €20.80Price
                                                                                                                      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
                                                                                                                              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
                                                                                                                                      Durite Forge Induction Megane 2 RSDurite Forge Induction Megane 2 RS
                                                                                                                                          Durite Forge Silicone. Se monte en lieu et place Plusieurs Coloris Disponibles
                                                                                                                                          €140.75Price
                                                                                                                                          Durite Forge Induction Megane 2 RSDurite Forge Induction Megane 2 RS
                                                                                                                                              Durite Forge Silicone. Se monte en lieu et place Plusieurs Coloris Disponibles
                                                                                                                                              €140.75Price
                                                                                                                                              Dump Valve Ouverte Forge Clio 4 RSDump Valve Ouverte Forge Clio 4 RS
                                                                                                                                                  The Forge Motorsport open dump valve , reference FMDVC200A , is designed for the Renault Clio IV RS 1.6 Turbo 200/220 . This atmospheric blow-off valve replaces the standard setup and releases excess boost pressure externally when the throttle is lifted. The kit is specifically developed for the Clio 4 RS and includes...
                                                                                                                                                  €191.53Price
                                                                                                                                                  Dump Valve Ouverte Forge Clio 4 RSDump Valve Ouverte Forge Clio 4 RS
                                                                                                                                                      The Forge Motorsport open dump valve , reference FMDVC200A , is designed for the Renault Clio IV RS 1.6 Turbo 200/220 . This atmospheric blow-off valve replaces the standard setup and releases excess boost pressure externally when the throttle is lifted. The kit is specifically developed for the Clio 4 RS and includes...
                                                                                                                                                      €191.53Price
                                                                                                                                                      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
                                                                                                                                                              En Stock
                                                                                                                                                              €211.80 Price
                                                                                                                                                              En Stock
                                                                                                                                                              €211.80 Price
                                                                                                                                                              Pompe à huileRenault Sport Oil Pump - Clio 2/3 RS & Megane 2/3 RS
                                                                                                                                                                  Secure your engine block's lubrication with this high-performance oil pump for Renault 2.0L engines. Essential for maintaining constant oil pressure, it is compatible with Clio 2 RS , Clio 3 RS , as well as X65 Cup ,...
                                                                                                                                                                  €211.80Price
                                                                                                                                                                  Pompe à huileRenault Sport Oil Pump - Clio 2/3 RS & Megane 2/3 RS
                                                                                                                                                                      Secure your engine block's lubrication with this high-performance oil pump for Renault 2.0L engines. Essential for maintaining constant oil pressure, it is compatible with Clio 2 RS , Clio 3 RS , as well as X65 Cup ,...
                                                                                                                                                                      €211.80Price
                                                                                                                                                                      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
                                                                                                                                                                              High-tensile steel replacement tuning preload spring for Forge Motorsport dump valves.
                                                                                                                                                                                  Prevent boost pressure leaks and excessive throttle response lag on your turbocharged engine block. This premium Forge Dump Valve Preload Spring features an uprated mechanical rating designed specifically to maintain the internal piston seal of your bypass valve under high...
                                                                                                                                                                                  €10.93Price
                                                                                                                                                                                  High-tensile steel replacement tuning preload spring for Forge Motorsport dump valves.
                                                                                                                                                                                      Prevent boost pressure leaks and excessive throttle response lag on your turbocharged engine block. This premium Forge Dump Valve Preload Spring features an uprated mechanical rating designed specifically to maintain the internal piston seal of your bypass valve under high...
                                                                                                                                                                                      €10.93Price
                                                                                                                                                                                      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
                                                                                                                                                                                              Pompe à eau Origine Renault Clio 3 RS - Megane 2 RS - Megane 3 RSGenuine OEM Water Pump - Renault Clio 3 RS / Megane 2/3 RS
                                                                                                                                                                                                  Safeguard the mechanical reliability and thermal efficiency of your high-performance engine with the Genuine Renault Sport Water Pump for F4R and F4Rt engines . This authentic factory replacement component is essential to ensure optimum coolant circulation under intense road...
                                                                                                                                                                                                  €117.43Price
                                                                                                                                                                                                  Pompe à eau Origine Renault Clio 3 RS - Megane 2 RS - Megane 3 RSGenuine OEM Water Pump - Renault Clio 3 RS / Megane 2/3 RS
                                                                                                                                                                                                      Safeguard the mechanical reliability and thermal efficiency of your high-performance engine with the Genuine Renault Sport Water Pump for F4R and F4Rt engines . This authentic factory replacement component is essential to ensure optimum coolant circulation under intense road...
                                                                                                                                                                                                      €117.43Price
                                                                                                                                                                                                      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
                                                                                                                                                                                                              €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