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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: Allumage
  • Categories: Circuit d'air
  • Categories: Préparation intérieure
  • Categories: Suralimentation (Turbo)
Sur commande ou en cours de réappro
€122.90 €245.81 Regular price -50% off Price
Sur commande ou en cours de réappro
€122.90 €245.81 Regular price -50% off Price
Kit distribution origine Twingo 2 RS et R1
      Kit distribution origine Twingo 2 RS
      €122.90€245.81Regular price-50% offPrice
      Kit distribution origine Twingo 2 RS et R1
          Kit distribution origine Twingo 2 RS
          €122.90€245.81Regular price-50% offPrice
          Sur commande ou en cours de réappro
          €278.86 Price
          Sur commande ou en cours de réappro
          €278.86 Price
          Arbre à cames Admission Clio 2 RSArbre à cames Admission Clio 2 RS
              Arbre à cames Admission Clio 2 RS Véritable produit d'origine
              €278.86Price
              Arbre à cames Admission Clio 2 RSArbre à cames Admission Clio 2 RS
                  Arbre à cames Admission Clio 2 RS Véritable produit d'origine
                  €278.86Price
                  Sur commande ou en cours de réappro
                  €259.00 Price
                  Sur commande ou en cours de réappro
                  €259.00 Price
                  Plaque reniflard Clio 2 RS 182 - Clio 3 RSPlaque reniflard Clio 2 RS 182 - Clio 3 RS
                      Plaque de reniflard taillé massé venant en lieu et place de la plaque d'origine Ajout un raccord Dash permettant de venir connecter directement un recuperateur de vapeur d'huile. Cette piece est un serieux atout pour les véhicules ayant modifié le collecteur d'admission d'origine. Produit a completer avec un joint Loctite 5980.
                      €259.00Price
                      Plaque reniflard Clio 2 RS 182 - Clio 3 RSPlaque reniflard Clio 2 RS 182 - Clio 3 RS
                          Plaque de reniflard taillé massé venant en lieu et place de la plaque d'origine Ajout un raccord Dash permettant de venir connecter directement un recuperateur de vapeur d'huile. Cette piece est un serieux atout pour les véhicules ayant modifié le collecteur d'admission d'origine. Produit a completer avec un joint Loctite 5980.
                          €259.00Price
                          Sur commande ou en cours de réappro
                          €26.35 Price
                          Sur commande ou en cours de réappro
                          €26.35 Price
                          Pure Motorsport aluminum ignition coil pack relocation bracket for Renault Clio 2 RS 172 182 F4R.
                              Do not risk misfires, high-RPM cut-offs, and premature ignition lead degradation caused by extreme heat transfer from the inlet plenum. The PURE MOTORSPORT ignition coil relocation bracket for Renault Clio 2 RS relocates your coil pack away from the engine block into a...
                              €26.35Price
                              Pure Motorsport aluminum ignition coil pack relocation bracket for Renault Clio 2 RS 172 182 F4R.
                                  Do not risk misfires, high-RPM cut-offs, and premature ignition lead degradation caused by extreme heat transfer from the inlet plenum. The PURE MOTORSPORT ignition coil relocation bracket for Renault Clio 2 RS relocates your coil pack away from the engine block into a...
                                  €26.35Price
                                  Sur commande ou en cours de réappro
                                  €226.99 Price
                                  Sur commande ou en cours de réappro
                                  €226.99 Price
                                      Lot de 4 bougies NGK Racing pour Megane RS F4RT avec grosse prépa
                                      €226.99Price
                                          Lot de 4 bougies NGK Racing pour Megane RS F4RT avec grosse prépa
                                          €226.99Price
                                          Sur commande ou en cours de réappro
                                          €45.60 Price
                                          Sur commande ou en cours de réappro
                                          €45.60 Price
                                          Capteur PMH Clio 3 RS Phase 1 - Megane 2 RS - Megane 3 RSGenuine Renault CPS Clio 3 RS ph1 / Megane 2 RS / Megane 3 RS
                                              Your Renault Clio 3 RS phase 1 , Renault Megane 2 RS , or Renault Megane 3 RS deserves the best. This genuine Renault Crankshaft Position Sensor (CPS) guarantees optimal engine performance. Specifically designed for these models, it ensures indispensable precision. Important: For the Megane 3 RS, please verify...
                                              €45.60Price
                                              Capteur PMH Clio 3 RS Phase 1 - Megane 2 RS - Megane 3 RSGenuine Renault CPS Clio 3 RS ph1 / Megane 2 RS / Megane 3 RS
                                                  Your Renault Clio 3 RS phase 1 , Renault Megane 2 RS , or Renault Megane 3 RS deserves the best. This genuine Renault Crankshaft Position Sensor (CPS) guarantees optimal engine performance. Specifically designed for these models, it ensures indispensable precision. Important: For the Megane 3 RS, please verify...
                                                  €45.60Price
                                                  Sur commande ou en cours de réappro
                                                  €30.82 Price
                                                  Sur commande ou en cours de réappro
                                                  €30.82 Price
                                                  Collection joints cuivre refroidisseur de turbo Mégane RSCollection joints cuivre refroidisseur de turbo Mégane RS
                                                      Collection de joint cuivre de refroidissement de turbo pour Mégane 2 RS et Megane 3 RS
                                                      €30.82Price
                                                      Collection joints cuivre refroidisseur de turbo Mégane RSCollection joints cuivre refroidisseur de turbo Mégane RS
                                                          Collection de joint cuivre de refroidissement de turbo pour Mégane 2 RS et Megane 3 RS
                                                          €30.82Price
                                                          Sur commande ou en cours de réappro
                                                          €1,926.00 Price
                                                          Sur commande ou en cours de réappro
                                                          €1,926.00 Price
                                                              Culasse avec soupapes Clio X85 R3 230cv 7711160276
                                                              €1,926.00Price
                                                                  Culasse avec soupapes Clio X85 R3 230cv 7711160276
                                                                  €1,926.00Price
                                                                  Sur commande ou en cours de réappro
                                                                  €790.00 Price
                                                                  Sur commande ou en cours de réappro
                                                                  €790.00 Price
                                                                  Echangeur (Intercooler) Wagner Megane 4 RSEchangeur (Intercooler) Wagner Megane 4 RS
                                                                      Echangeur (Intercooler) Wagner Megane 4 RS Dimensions : 315 mm x 227 [142] mm x 165 [150] mm Cela correspond à un volume net extérieur de 11,4 litres.  Ainsi, l'intercooler WagnerTuning Competition pour la Renault Megane 4RS offre un afflux frontal plus important de 6% et un volume net extérieur supérieur de 47% par rapport à l'intercooler...
                                                                      €790.00Price
                                                                      Echangeur (Intercooler) Wagner Megane 4 RSEchangeur (Intercooler) Wagner Megane 4 RS
                                                                          Echangeur (Intercooler) Wagner Megane 4 RS Dimensions : 315 mm x 227 [142] mm x 165 [150] mm Cela correspond à un volume net extérieur de 11,4 litres.  Ainsi, l'intercooler WagnerTuning Competition pour la Renault Megane 4RS offre un afflux frontal plus important de 6% et un volume net extérieur supérieur de 47% par rapport à l'intercooler...
                                                                          €790.00Price
                                                                          Sur commande ou en cours de réappro
                                                                          €68.12 Price
                                                                          Sur commande ou en cours de réappro
                                                                          €68.12 Price
                                                                          Capteur Magnetique PMH Clio 2 X65 Cup
                                                                              Capteur Magnetique PMH Clio 2 X65 Cup Référence: 7711152032
                                                                              €68.12Price
                                                                              Capteur Magnetique PMH Clio 2 X65 Cup
                                                                                  Capteur Magnetique PMH Clio 2 X65 Cup Référence: 7711152032
                                                                                  €68.12Price
                                                                                  Sur commande ou en cours de réappro
                                                                                  €94.91 Price
                                                                                  Sur commande ou en cours de réappro
                                                                                  €94.91 Price
                                                                                  Collection de coussinets de bielles de Twingo RS et R1
                                                                                      Renault Twingo 2 RS Connecting Rod Bearing Set (Original) Original Renault connecting rod bearing set for Twingo 2 RS. Ensures the longevity and performance of your engine. Discover our compatible connecting rod bolts and oil pan gaskets at the bottom of the page.
                                                                                      €94.91Price
                                                                                      Collection de coussinets de bielles de Twingo RS et R1
                                                                                          Renault Twingo 2 RS Connecting Rod Bearing Set (Original) Original Renault connecting rod bearing set for Twingo 2 RS. Ensures the longevity and performance of your engine. Discover our compatible connecting rod bolts and oil pan gaskets at the bottom of the page.
                                                                                          €94.91Price
                                                                                          Sur commande ou en cours de réappro
                                                                                          €319.57 Price
                                                                                          Sur commande ou en cours de réappro
                                                                                          €319.57 Price
                                                                                          New Genuine Renault Piston - Megane 3 RS & N4 EngineNew Genuine Renault Piston - Megane 3 RS & N4 Engine
                                                                                              The centerpiece of your Renault Megane 3 RS or Megane N4 engine, this genuine Renault piston is sold individually for targeted repair. Essential for restoring engine compression and preventing power loss, this new piston guarantees newfound reliability and performance. Important: the piston is supplied with only one circlip, and piston rings must be ordered...
                                                                                              €319.57Price
                                                                                              New Genuine Renault Piston - Megane 3 RS & N4 EngineNew Genuine Renault Piston - Megane 3 RS & N4 Engine
                                                                                                  The centerpiece of your Renault Megane 3 RS or Megane N4 engine, this genuine Renault piston is sold individually for targeted repair. Essential for restoring engine compression and preventing power loss, this new piston guarantees newfound reliability and performance. Important: the piston is supplied with only one circlip, and piston rings must be ordered...
                                                                                                  €319.57Price
                                                                                                  Sur commande ou en cours de réappro
                                                                                                  €9.26 Price
                                                                                                  Sur commande ou en cours de réappro
                                                                                                  €9.26 Price
                                                                                                  Genuine Renault Connecting Rod Bolt - Renault Super 5 GT TURBO (Individual)Genuine Renault Connecting Rod Bolt - Renault Super 5 GT TURBO (Individual)
                                                                                                      Ensure ultimate engine reliability for your Renault Super 5 GT TURBO with this genuine Renault connecting rod bolt , sold individually. A crucial element of the rotating assembly, its strength is vital for your engine's performance and longevity. Don't compromise your block's integrity with uncertain quality parts.
                                                                                                      €9.26Price
                                                                                                      Genuine Renault Connecting Rod Bolt - Renault Super 5 GT TURBO (Individual)Genuine Renault Connecting Rod Bolt - Renault Super 5 GT TURBO (Individual)
                                                                                                          Ensure ultimate engine reliability for your Renault Super 5 GT TURBO with this genuine Renault connecting rod bolt , sold individually. A crucial element of the rotating assembly, its strength is vital for your engine's performance and longevity. Don't compromise your block's integrity with uncertain quality parts.
                                                                                                          €9.26Price
                                                                                                          Sur commande ou en cours de réappro
                                                                                                          €8,731.62 €8,732.50 Regular price -0.01% off Price
                                                                                                          Sur commande ou en cours de réappro
                                                                                                          €8,731.62 €8,732.50 Regular price -0.01% off Price
                                                                                                          F4R Exchange Standard Original Renault Engine for Clio 3 RSF4R Exchange Standard Original Renault Engine for Clio 3 RS
                                                                                                              Worried about losing the power and reliability of your Renault Clio 3 RS ? Don't let a tired engine deprive you of thrilling sensations . Opt for our original Renault F4R assembled engine on exchange basis , the ideal solution to regain its former performance. Discover essential complementary products for your...
                                                                                                              €8,731.62€8,732.50Regular price-0.01% offPrice
                                                                                                              F4R Exchange Standard Original Renault Engine for Clio 3 RSF4R Exchange Standard Original Renault Engine for Clio 3 RS
                                                                                                                  Worried about losing the power and reliability of your Renault Clio 3 RS ? Don't let a tired engine deprive you of thrilling sensations . Opt for our original Renault F4R assembled engine on exchange basis , the ideal solution to regain its former performance. Discover essential complementary products for your...
                                                                                                                  €8,731.62€8,732.50Regular price-0.01% offPrice
                                                                                                                  Sur commande ou en cours de réappro
                                                                                                                  €174.97 Price
                                                                                                                  Sur commande ou en cours de réappro
                                                                                                                  €174.97 Price
                                                                                                                  Modine Clio 2 cupRENAULT Original Water/Oil Cooler Clio 2 X65 Cup & Clio 3 RS
                                                                                                                      Original RENAULT Water/Oil Cooler for Clio 2 X65 Cup &amp; Clio 3 RS Do not risk engine overheating and loss of performance . This original RENAULT water/oil heat exchanger is the vital component for maintaining optimal <span...
                                                                                                                      €174.97Price
                                                                                                                      Modine Clio 2 cupRENAULT Original Water/Oil Cooler Clio 2 X65 Cup & Clio 3 RS
                                                                                                                          Original RENAULT Water/Oil Cooler for Clio 2 X65 Cup &amp; Clio 3 RS Do not risk engine overheating and loss of performance . This original RENAULT water/oil heat exchanger is the vital component for maintaining optimal <span...
                                                                                                                          €174.97Price
                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                          €3,544.38 Price
                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                          €3,544.38 Price
                                                                                                                          Culasse assemblée Megane 3 RSCulasse assemblée Megane 3 RS
                                                                                                                              Culasse assemblée Megane 3 RS Culasse neuve comprenant soupapes assemblées
                                                                                                                              €3,544.38Price
                                                                                                                              Culasse assemblée Megane 3 RSCulasse assemblée Megane 3 RS
                                                                                                                                  Culasse assemblée Megane 3 RS Culasse neuve comprenant soupapes assemblées
                                                                                                                                  €3,544.38Price
                                                                                                                                  Sur commande ou en cours de réappro
                                                                                                                                  €103.06 Price
                                                                                                                                  Sur commande ou en cours de réappro
                                                                                                                                  €103.06 Price
                                                                                                                                  copy of Tuyau huile Turbo - Carter Cylindre Megane 2 RScopy of Tuyau huile Turbo - Carter Cylindre Megane 2 RS
                                                                                                                                      Tuyau huile Turbo - Carter Cylindre Megane 2 RS
                                                                                                                                      €103.06Price
                                                                                                                                      copy of Tuyau huile Turbo - Carter Cylindre Megane 2 RScopy of Tuyau huile Turbo - Carter Cylindre Megane 2 RS
                                                                                                                                          Tuyau huile Turbo - Carter Cylindre Megane 2 RS
                                                                                                                                          €103.06Price
                                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                                          €79.93 Price
                                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                                          €79.93 Price
                                                                                                                                              Coussinet de bielles Clio R3 MAX (prix unitaire) La photo représente 4 coussinets mais le prix est unitaire
                                                                                                                                              €79.93Price
                                                                                                                                                  Coussinet de bielles Clio R3 MAX (prix unitaire) La photo représente 4 coussinets mais le prix est unitaire
                                                                                                                                                  €79.93Price
                                                                                                                                                  Sur commande ou en cours de réappro
                                                                                                                                                  €253.93 Price
                                                                                                                                                  Sur commande ou en cours de réappro
                                                                                                                                                  €253.93 Price
                                                                                                                                                  Turbosmart Internal Wastegate Actuator for Megane 3 RSTurbosmart Internal Wastegate Actuator for Megane 3 RS
                                                                                                                                                      Optimize your boost management with the Turbosmart Internal Wastegate Actuator (ref. TS-0646-1072) for Renault Megane 3 RS . Designed to provide unmatched pressure stability, this IWG75 replaces the factory actuator, which is often too soft to handle high loads,...
                                                                                                                                                      €253.93Price
                                                                                                                                                      Turbosmart Internal Wastegate Actuator for Megane 3 RSTurbosmart Internal Wastegate Actuator for Megane 3 RS
                                                                                                                                                          Optimize your boost management with the Turbosmart Internal Wastegate Actuator (ref. TS-0646-1072) for Renault Megane 3 RS . Designed to provide unmatched pressure stability, this IWG75 replaces the factory actuator, which is often too soft to handle high loads,...
                                                                                                                                                          €253.93Price
                                                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                                                          €1.49 Price
                                                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                                                          €1.49 Price
                                                                                                                                                          Bague 12.4x15 centrage culasse Clio 2 RS
                                                                                                                                                              Bague 12.4x15 centrage culasse Clio 2 RS
                                                                                                                                                              €1.49Price
                                                                                                                                                              Bague 12.4x15 centrage culasse Clio 2 RS
                                                                                                                                                                  Bague 12.4x15 centrage culasse Clio 2 RS
                                                                                                                                                                  €1.49Price
                                                                                                                                                                  Sur commande ou en cours de réappro
                                                                                                                                                                  €34.98 Price
                                                                                                                                                                  Sur commande ou en cours de réappro
                                                                                                                                                                  €34.98 Price
                                                                                                                                                                  Support bague joint Vilebrequin Twingo 2 RS y compris R1 et R2Support bague joint Vilebrequin Twingo 2 RS y compris R1 et R2
                                                                                                                                                                      Support bague joint Vilebrequin Twingo 2 RS y compris R1 et R2
                                                                                                                                                                      €34.98Price
                                                                                                                                                                      Support bague joint Vilebrequin Twingo 2 RS y compris R1 et R2Support bague joint Vilebrequin Twingo 2 RS y compris R1 et R2
                                                                                                                                                                          Support bague joint Vilebrequin Twingo 2 RS y compris R1 et R2
                                                                                                                                                                          €34.98Price
                                                                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                                                                          €289.19 Price
                                                                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                                                                          €289.19 Price
                                                                                                                                                                          Genuine Renault Upstream Oxygen Sensor Clio 3 RSGenuine Renault Upstream Oxygen Sensor Clio 3 RS
                                                                                                                                                                              Optimize the Performance of Your Renault Clio 3 RS Don't let a faulty upstream oxygen sensor compromise the optimal functioning of your Renault Clio 3 RS . This genuine Renault upstream oxygen sensor , also known as a lambda sensor , is essential for efficient combustion and controlled emissions. Please...
                                                                                                                                                                              €289.19Price
                                                                                                                                                                              Genuine Renault Upstream Oxygen Sensor Clio 3 RSGenuine Renault Upstream Oxygen Sensor Clio 3 RS
                                                                                                                                                                                  Optimize the Performance of Your Renault Clio 3 RS Don't let a faulty upstream oxygen sensor compromise the optimal functioning of your Renault Clio 3 RS . This genuine Renault upstream oxygen sensor , also known as a lambda sensor , is essential for efficient combustion and controlled emissions. Please...
                                                                                                                                                                                  €289.19Price
                                                                                                                                                                                  Joint de boitier papillon
                                                                                                                                                                                    • Pack
                                                                                                                                                                                    The mechanical throttle body gasket is a crucial performance part for optimizing the engine operation of your Renault Clio R3 or Renault Clio 3 X85 Cup . Ensure flawless sealing and maintain the power of your competition vehicle with this high-quality replacement gasket.
                                                                                                                                                                                    €7.93Price
                                                                                                                                                                                    Joint de boitier papillon
                                                                                                                                                                                      • Pack
                                                                                                                                                                                      The mechanical throttle body gasket is a crucial performance part for optimizing the engine operation of your Renault Clio R3 or Renault Clio 3 X85 Cup . Ensure flawless sealing and maintain the power of your competition vehicle with this high-quality replacement gasket.
                                                                                                                                                                                      €7.93Price