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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: Alimentation
  • Categories: Allumage
  • Categories: Kit Allègement
  • Categories: Préparation intérieure
Câble alimentation protection batterie Megane 3 RS et N4
      Câble alimentation protection batterie Megane 3 RS et N4
      €96.72Price
      Câble alimentation protection batterie Megane 3 RS et N4
          Câble alimentation protection batterie Megane 3 RS et N4
          €96.72Price
          En Stock
          €178.20 Price
          En Stock
          €178.20 Price
          Plaque reniflard Clio 2 RS 172
              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.
              €178.20Price
              Plaque reniflard Clio 2 RS 172
                  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.
                  €178.20Price
                  En Stock
                  €11.53 Price
                  En Stock
                  €11.53 Price
                  Demi coussinet rainurés jaune vilebrequin K4M 854Demi coussinet rainurés jaune vilebrequin K4M 854
                      Demi coussinet rainurés jaune vilebrequin K4M 854
                      €11.53Price
                      Demi coussinet rainurés jaune vilebrequin K4M 854Demi coussinet rainurés jaune vilebrequin K4M 854
                          Demi coussinet rainurés jaune vilebrequin K4M 854
                          €11.53Price
                          En Stock
                          €32.92 Price
                          En Stock
                          €32.92 Price
                          Rampe injection Clio 2 RS 172 phase 2 et 182
                              Fuel injection rail Renault Clio 2 RS Phase 2 & 3 Give your Renault Clio 2 RS Phase 2 or 3 an optimum fuel supply with the genuine Renault injection rail! Designed for sports driving enthusiasts, this rail guarantees a constant and precise fuel flow, even at high engine speeds, for optimum performance and an unrivalled driving experience. ...
                              €32.92Price
                              Rampe injection Clio 2 RS 172 phase 2 et 182
                                  Fuel injection rail Renault Clio 2 RS Phase 2 & 3 Give your Renault Clio 2 RS Phase 2 or 3 an optimum fuel supply with the genuine Renault injection rail! Designed for sports driving enthusiasts, this rail guarantees a constant and precise fuel flow, even at high engine speeds, for optimum performance and an unrivalled driving experience. ...
                                  €32.92Price
                                  Vis de fixation poulie folle clim Clio 3 RS - Megane 2 RS - Megane 3 RSVis de fixation poulie folle clim Clio 3 RS - Megane 2 RS - Megane 3 RS
                                      Vis de fixation poulie folle clim Clio 3 RS - Megane 2 RS - Megane 3 RS. Vendue à l'unité - 3 Vis sont nécessaires
                                      €2.34Price
                                      Vis de fixation poulie folle clim Clio 3 RS - Megane 2 RS - Megane 3 RSVis de fixation poulie folle clim Clio 3 RS - Megane 2 RS - Megane 3 RS
                                          Vis de fixation poulie folle clim Clio 3 RS - Megane 2 RS - Megane 3 RS. Vendue à l'unité - 3 Vis sont nécessaires
                                          €2.34Price
                                          En Stock
                                          €37.52 Price
                                          En Stock
                                          €37.52 Price
                                          Raccord 90° de rampe d'injection Clio Gr N
                                              Secure your fuel system with this official RENAULT SPORT 90° fuel rail fitting . A key component from the competition catalog for the Renault Clio 2 RS Group N , this fitting ensures constant flow and absolute sealing under pressure. Do not let a standard component compromise the safety of your racing setup or your track day...
                                              €37.52Price
                                              Raccord 90° de rampe d'injection Clio Gr N
                                                  Secure your fuel system with this official RENAULT SPORT 90° fuel rail fitting . A key component from the competition catalog for the Renault Clio 2 RS Group N , this fitting ensures constant flow and absolute sealing under pressure. Do not let a standard component compromise the safety of your racing setup or your track day...
                                                  €37.52Price
                                                  Jeu de Bougies NGK PFR7ZTG
                                                      Maximize your engine's combustion cycle with this set of NGK PFR7ZTG Spark Plugs . Specifically engineered for the high-performance demands of Renault Sport engines, including the Clio 3 RS and Megane 2 RS , these plugs...
                                                      €53.99Price
                                                      Jeu de Bougies NGK PFR7ZTG
                                                          Maximize your engine's combustion cycle with this set of NGK PFR7ZTG Spark Plugs . Specifically engineered for the high-performance demands of Renault Sport engines, including the Clio 3 RS and Megane 2 RS , these plugs...
                                                          €53.99Price
                                                          Jeu de 4 Fils de Bougies Magnecor Clio 1 16s / Williams
                                                              Kit de fils d'allumage MAGNECOR - Renault Clio 16S/Williams
                                                              €150.38Price
                                                              Jeu de 4 Fils de Bougies Magnecor Clio 1 16s / Williams
                                                                  Kit de fils d'allumage MAGNECOR - Renault Clio 16S/Williams
                                                                  €150.38Price
                                                                  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
                                                                          Collection de 48 grains de réglage soupapes Twingo R2 195-205
                                                                              Collection de 48 grains de réglage soupapes Twingo R2 195-205 7711167645
                                                                              €831.29Price
                                                                              Collection de 48 grains de réglage soupapes Twingo R2 195-205
                                                                                  Collection de 48 grains de réglage soupapes Twingo R2 195-205 7711167645
                                                                                  €831.29Price
                                                                                  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
                                                                                          Fuel Pump Locking Ring and Seal Kit - Renault Sport Range
                                                                                              Ensure a leak-free fuel system with this genuine Renault fuel pump locking ring and seal kit . Essential for any intervention on the fuel sender unit, this kit prevents leaks and persistent fuel odors inside your sports vehicle's cabin. Includes the locking nut (ring) and the...
                                                                                              €55.88Price
                                                                                              Fuel Pump Locking Ring and Seal Kit - Renault Sport Range
                                                                                                  Ensure a leak-free fuel system with this genuine Renault fuel pump locking ring and seal kit . Essential for any intervention on the fuel sender unit, this kit prevents leaks and persistent fuel odors inside your sports vehicle's cabin. Includes the locking nut (ring) and the...
                                                                                                  €55.88Price
                                                                                                  En Stock
                                                                                                  €71.22 €79.33 Regular price -€8.11 off Price
                                                                                                  En Stock
                                                                                                  €71.22 €79.33 Regular price -€8.11 off Price
                                                                                                  Jeu de 4 Bougies Clio 2 RS y compris Gr N et X65 Cup
                                                                                                      Set of 4 Original Renault Spark Plugs - Clio 2 RS / Gr N / X65 Cup Optimize the performance of your Renault Clio 2 RS with this set of 4 original Renault spark plugs. Essential for perfect ignition and optimal combustion. Compatibility: Clio 2 RS, Clio 2 Gr N, Clio 2 X65 Cup. Original Renault Part Set of 4 spark plugs ...
                                                                                                      €71.22€79.33Regular price-€8.11 offPrice
                                                                                                      Jeu de 4 Bougies Clio 2 RS y compris Gr N et X65 Cup
                                                                                                          Set of 4 Original Renault Spark Plugs - Clio 2 RS / Gr N / X65 Cup Optimize the performance of your Renault Clio 2 RS with this set of 4 original Renault spark plugs. Essential for perfect ignition and optimal combustion. Compatibility: Clio 2 RS, Clio 2 Gr N, Clio 2 X65 Cup. Original Renault Part Set of 4 spark plugs ...
                                                                                                          €71.22€79.33Regular price-€8.11 offPrice
                                                                                                          En Stock
                                                                                                          €174.00 Price
                                                                                                          En Stock
                                                                                                          €174.00 Price
                                                                                                          Joint de Culasse renforcé Cometic Megane 3 RS 1.7Joint de Culasse renforcé Cometic Megane 3 RS 1.7
                                                                                                              Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.7 mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                                              €174.00Price
                                                                                                              Joint de Culasse renforcé Cometic Megane 3 RS 1.7Joint de Culasse renforcé Cometic Megane 3 RS 1.7
                                                                                                                  Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.7 mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                                                  €174.00Price
                                                                                                                  Collection de Ségments (X82.70)
                                                                                                                      Ensure a perfect engine seal with this genuine Renault piston ring set . Specifically designed for the F4R and F4Rt engines found in the Clio 2 RS , Clio 3 RS , and Megane 3 RS , this kit is the crucial element for restoring...
                                                                                                                      €37.55Price
                                                                                                                      Collection de Ségments (X82.70)
                                                                                                                          Ensure a perfect engine seal with this genuine Renault piston ring set . Specifically designed for the F4R and F4Rt engines found in the Clio 2 RS , Clio 3 RS , and Megane 3 RS , this kit is the crucial element for restoring...
                                                                                                                          €37.55Price
                                                                                                                          En Stock
                                                                                                                          €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
                                                                                                                                  Electrovanne décalage arbre à cames (dephasage) Clio 3 RS phase 2 et Cup X85 et Megane 3 RS
                                                                                                                                      Camshaft Phasing Solenoid Valve : genuine RENAULT part essential for the proper function and engine performance of your Renault Clio 3 RS Phase 2 and Renault Megane 3 RS . A faulty component leads to power loss and unstable idling. Ensures optimal...
                                                                                                                                      €202.56Price
                                                                                                                                      Electrovanne décalage arbre à cames (dephasage) Clio 3 RS phase 2 et Cup X85 et Megane 3 RS
                                                                                                                                          Camshaft Phasing Solenoid Valve : genuine RENAULT part essential for the proper function and engine performance of your Renault Clio 3 RS Phase 2 and Renault Megane 3 RS . A faulty component leads to power loss and unstable idling. Ensures optimal...
                                                                                                                                          €202.56Price
                                                                                                                                          En Stock
                                                                                                                                          €198.25 Price
                                                                                                                                          En Stock
                                                                                                                                          €198.25 Price
                                                                                                                                          Kit Joint Refection moteur Origine Clio 3 RS
                                                                                                                                              Ensemble de joints nécéssaire au bon remontage du moteur de Clio 3 RS Véritable produit d'origine
                                                                                                                                              €198.25Price
                                                                                                                                              Kit Joint Refection moteur Origine Clio 3 RS
                                                                                                                                                  Ensemble de joints nécéssaire au bon remontage du moteur de Clio 3 RS Véritable produit d'origine
                                                                                                                                                  €198.25Price
                                                                                                                                                  En Stock
                                                                                                                                                  €174.00 Price
                                                                                                                                                  En Stock
                                                                                                                                                  €174.00 Price
                                                                                                                                                  Joint de Culasse renforcé Cometic Megane 3 RS 1.9Joint de Culasse renforcé Cometic Megane 3 RS 1.9
                                                                                                                                                      Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.9 mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                                                                                      €174.00Price
                                                                                                                                                      Joint de Culasse renforcé Cometic Megane 3 RS 1.9Joint de Culasse renforcé Cometic Megane 3 RS 1.9
                                                                                                                                                          Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.9 mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                                                                                          €174.00Price