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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: Kit Allègement
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  • Categories: Support moteur
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
          Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
              Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
              €14.95Price
              Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                  Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                  €14.95Price
                  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
                          €122.00 Price
                          En Stock
                          €122.00 Price
                          ARP Uprated Rod Bolts | Renault Clio & Megane RS
                              Protect your bottom end assembly against high-RPM failure with this premium Uprated ARP Rod Bolts Kit for Renault Clio 16S, Williams, Clio 2 3 RS, and Megane 2 3 RS , commercialized under the international part number ARP-216-6301 . Forged from premium ARP...
                              €122.00Price
                              ARP Uprated Rod Bolts | Renault Clio & Megane RS
                                  Protect your bottom end assembly against high-RPM failure with this premium Uprated ARP Rod Bolts Kit for Renault Clio 16S, Williams, Clio 2 3 RS, and Megane 2 3 RS , commercialized under the international part number ARP-216-6301 . Forged from premium ARP...
                                  €122.00Price
                                  Poulie accessoire filtrante (damper) Twingo RS, R1 et R2Poulie accessoire filtrante (damper) Twingo RS, R1 et R2
                                      Poulie accessoire filtrante Twingo RS, R1 et R2 7711167301
                                      €127.10Price
                                      Poulie accessoire filtrante (damper) Twingo RS, R1 et R2Poulie accessoire filtrante (damper) Twingo RS, R1 et R2
                                          Poulie accessoire filtrante Twingo RS, R1 et R2 7711167301
                                          €127.10Price
                                          Joint spy Vilebrequin côté distribution R21 turboRenault Crankshaft Oil Seal, Timing Side - Formula Renault / Renault 21 2L Turbo
                                              Renault Crankshaft Oil Seal, Timing Side - Formula Renault / R21 2L Turbo Ensure your engine's sealing with this original Renault crankshaft oil seal. Designed for Formula Renault and Renault 21 2L Turbo, it prevents oil leaks and guarantees your engine's longevity. Original Renault Part Crankshaft oil seal, timing side ...
                                              €20.87Price
                                              Joint spy Vilebrequin côté distribution R21 turboRenault Crankshaft Oil Seal, Timing Side - Formula Renault / Renault 21 2L Turbo
                                                  Renault Crankshaft Oil Seal, Timing Side - Formula Renault / R21 2L Turbo Ensure your engine's sealing with this original Renault crankshaft oil seal. Designed for Formula Renault and Renault 21 2L Turbo, it prevents oil leaks and guarantees your engine's longevity. Original Renault Part Crankshaft oil seal, timing side ...
                                                  €20.87Price
                                                  Joint de Culasse Clio 3 RS y compris Clio R3 et X85 Cup
                                                      Joint de Culasse Clio 3 RS y compris Clio R3 et X85 Cup Véritable produit d'origine
                                                      €89.65Price
                                                      Joint de Culasse Clio 3 RS y compris Clio R3 et X85 Cup
                                                          Joint de Culasse Clio 3 RS y compris Clio R3 et X85 Cup Véritable produit d'origine
                                                          €89.65Price
                                                          Sonde pression Twingo R2New Genuine Renault Sport Oil Pressure Sensor - Clio R3 & Twingo R2
                                                              This new oil pressure sensor , from the Renault Sport competition catalog , is a vital safety part for the rally engines of the Renault Clio R3 and Twingo R2 . It is essential for monitoring lubrication and thereby preventing catastrophic engine failures caused by a lack or drop in oil pressure.
                                                              €195.78Price
                                                              Sonde pression Twingo R2New Genuine Renault Sport Oil Pressure Sensor - Clio R3 & Twingo R2
                                                                  This new oil pressure sensor , from the Renault Sport competition catalog , is a vital safety part for the rally engines of the Renault Clio R3 and Twingo R2 . It is essential for monitoring lubrication and thereby preventing catastrophic engine failures caused by a lack or drop in oil pressure.
                                                                  €195.78Price
                                                                  En Stock
                                                                  €5.66 Price
                                                                  En Stock
                                                                  €5.66 Price
                                                                  Vis de fixation galet enrouleur de distribution K4MVis de fixation galet enrouleur de distribution K4M
                                                                      Vis de fixation galet enrouleur de distribution K4M 8200581340
                                                                      €5.66Price
                                                                      Vis de fixation galet enrouleur de distribution K4MVis de fixation galet enrouleur de distribution K4M
                                                                          Vis de fixation galet enrouleur de distribution K4M 8200581340
                                                                          €5.66Price
                                                                          En Stock
                                                                          €24.00 €30.00 Regular price -20% off Price
                                                                          En Stock
                                                                          €24.00 €30.00 Regular price -20% off Price
                                                                          Jeu de Bougies Renault Clio Williams
                                                                              Jeu de Bougies Renault Clio Williams Véritable produit d'origine
                                                                              €24.00€30.00Regular price-20% offPrice
                                                                              Jeu de Bougies Renault Clio Williams
                                                                                  Jeu de Bougies Renault Clio Williams Véritable produit d'origine
                                                                                  €24.00€30.00Regular price-20% offPrice
                                                                                  Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
                                                                                      Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
                                                                                      €37.90Price
                                                                                      Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
                                                                                          Bague étanchéité vis et bouchon arbre à cames admission Twingo RS, R1 et R2
                                                                                          €37.90Price
                                                                                          Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
                                                                                              Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
                                                                                              €41.95Price
                                                                                              Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
                                                                                                  Bague étanchéité arbre à cames échappement Twingo RS, R1 et R2
                                                                                                  €41.95Price
                                                                                                  Gicleur Piston 1-3 Clio 2 RS y compris Gr N et X65 Cup
                                                                                                      Gicleur Piston 1-3 Clio 2 RS y compris Gr N et X65 Cup
                                                                                                      €33.55Price
                                                                                                      Gicleur Piston 1-3 Clio 2 RS y compris Gr N et X65 Cup
                                                                                                          Gicleur Piston 1-3 Clio 2 RS y compris Gr N et X65 Cup
                                                                                                          €33.55Price
                                                                                                          Genuine AC Delete Accessory Bracket - Renault Twingo 2 RSGenuine AC Delete Accessory Bracket - Renault Twingo 2 RS
                                                                                                              Don't let a heavy and power-consuming air conditioning compressor hold back the performance of your Renault Twingo 2 RS . This genuine Renault accessory bracket is the official solution for a reliable AC delete . Specifically designed for the K4M RS engine , it allows for significant weight reduction and improved engine...
                                                                                                              €217.02Price
                                                                                                              Genuine AC Delete Accessory Bracket - Renault Twingo 2 RSGenuine AC Delete Accessory Bracket - Renault Twingo 2 RS
                                                                                                                  Don't let a heavy and power-consuming air conditioning compressor hold back the performance of your Renault Twingo 2 RS . This genuine Renault accessory bracket is the official solution for a reliable AC delete . Specifically designed for the K4M RS engine , it allows for significant weight reduction and improved engine...
                                                                                                                  €217.02Price
                                                                                                                  Linguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RSLinguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RS
                                                                                                                      Linguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RSVéritable produit d'origine
                                                                                                                      €90.76Price
                                                                                                                      Linguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RSLinguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RS
                                                                                                                          Linguet rouleau Clio 2 RS et  Clio 3 RS y compris R3 et X85 Cup et Twingo RSVéritable produit d'origine
                                                                                                                          €90.76Price
                                                                                                                          En Stock
                                                                                                                          €133.56 Price
                                                                                                                          En Stock
                                                                                                                          €133.56 Price
                                                                                                                          Piston équipé indice B (X82.70) Clio 3 RS et X85 Cup
                                                                                                                              Piston équipé indice B (X=82.70) Clio 3 RS et X85 Cup Piston d'origine
                                                                                                                              €133.56Price
                                                                                                                              Piston équipé indice B (X82.70) Clio 3 RS et X85 Cup
                                                                                                                                  Piston équipé indice B (X=82.70) Clio 3 RS et X85 Cup Piston d'origine
                                                                                                                                  €133.56Price
                                                                                                                                  Gicleur Piston 2-4 Clio 2 RS y compris Gr N et x65 CupGicleur Piston 2-4 Clio 2 RS y compris Gr N et x65 Cup
                                                                                                                                      Gicleur Piston 2-4 Clio 2 RS y compris Gr N et x65 Cup  
                                                                                                                                      €33.55Price
                                                                                                                                      Gicleur Piston 2-4 Clio 2 RS y compris Gr N et x65 CupGicleur Piston 2-4 Clio 2 RS y compris Gr N et x65 Cup
                                                                                                                                          Gicleur Piston 2-4 Clio 2 RS y compris Gr N et x65 Cup  
                                                                                                                                          €33.55Price
                                                                                                                                          Collection de 3 segments pour piston Twingo RS R1 et R2 160
                                                                                                                                              Original RENAULT Piston Ring Set for Twingo 2 RS (for 1 piston) Do not compromise the compression and power of your Twingo 2 RS engine. This original RENAULT piston...
                                                                                                                                              €68.32Price
                                                                                                                                              Collection de 3 segments pour piston Twingo RS R1 et R2 160
                                                                                                                                                  Original RENAULT Piston Ring Set for Twingo 2 RS (for 1 piston) Do not compromise the compression and power of your Twingo 2 RS engine. This original RENAULT piston...
                                                                                                                                                  €68.32Price
                                                                                                                                                  En Stock
                                                                                                                                                  €139.14 Price
                                                                                                                                                  En Stock
                                                                                                                                                  €139.14 Price
                                                                                                                                                  Piston équipé C (X82.70) Clio 3 RS
                                                                                                                                                      The Renault complete piston (index C) is an original part, supplied with pin and pin clips, designed for your Renault Clio 3 RS and Renault Clio 3 X85 Cup . It ensures optimal engine performance and increased reliability.
                                                                                                                                                      €139.14Price
                                                                                                                                                      Piston équipé C (X82.70) Clio 3 RS
                                                                                                                                                          The Renault complete piston (index C) is an original part, supplied with pin and pin clips, designed for your Renault Clio 3 RS and Renault Clio 3 X85 Cup . It ensures optimal engine performance and increased reliability.
                                                                                                                                                          €139.14Price
                                                                                                                                                          En Stock
                                                                                                                                                          €199.00 Price
                                                                                                                                                          En Stock
                                                                                                                                                          €199.00 Price
                                                                                                                                                          Kit suppression de direction assistéeKit suppression de direction assistée
                                                                                                                                                              Kit suppression de direction assistée comprenant la poulie folle et son support.
                                                                                                                                                              €199.00Price
                                                                                                                                                              Kit suppression de direction assistéeKit suppression de direction assistée
                                                                                                                                                                  Kit suppression de direction assistée comprenant la poulie folle et son support.
                                                                                                                                                                  €199.00Price
                                                                                                                                                                  En Stock
                                                                                                                                                                  €34.73 €53.42 Regular price -35% off Price
                                                                                                                                                                  En Stock
                                                                                                                                                                  €34.73 €53.42 Regular price -35% off Price
                                                                                                                                                                  Bougie origine
                                                                                                                                                                      The genuine RENAULT Spark Plug , sold individually and an original manufacturer part, is essential for maintaining optimal performance in your Renault Megane 4 RS or Alpine A110 . Ensure perfect ignition and efficient combustion by choosing RENAULT quality.
                                                                                                                                                                      €34.73€53.42Regular price-35% offPrice
                                                                                                                                                                      Bougie origine
                                                                                                                                                                          The genuine RENAULT Spark Plug , sold individually and an original manufacturer part, is essential for maintaining optimal performance in your Renault Megane 4 RS or Alpine A110 . Ensure perfect ignition and efficient combustion by choosing RENAULT quality.
                                                                                                                                                                          €34.73€53.42Regular price-35% offPrice
                                                                                                                                                                          NGK Iridium Spark Plug - Renault Clio 4 RS (Trophy & Sport) (1 unit)NGK Iridium Spark Plug - Renault Clio 4 RS (Trophy & Sport) (1 unit)
                                                                                                                                                                              Optimize the ignition of your 1.6 Turbo engine with the NGK Iridium spark plug for Clio 4 RS . Specifically designed for high-performance engines, it offers superior ignitability and exceptional thermal resistance. Sold individually, this premium spark...
                                                                                                                                                                              €26.77Price
                                                                                                                                                                              NGK Iridium Spark Plug - Renault Clio 4 RS (Trophy & Sport) (1 unit)NGK Iridium Spark Plug - Renault Clio 4 RS (Trophy & Sport) (1 unit)
                                                                                                                                                                                  Optimize the ignition of your 1.6 Turbo engine with the NGK Iridium spark plug for Clio 4 RS . Specifically designed for high-performance engines, it offers superior ignitability and exceptional thermal resistance. Sold individually, this premium spark...
                                                                                                                                                                                  €26.77Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €116.83 Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €116.83 Price
                                                                                                                                                                                  Jeu de segments pour piston origine Megane 3 RS
                                                                                                                                                                                      Jeu de segments pour piston origine Megane 3 RS 1 Jeu comprend le necessaire pour 1 piston
                                                                                                                                                                                      €116.83Price
                                                                                                                                                                                      Jeu de segments pour piston origine Megane 3 RS
                                                                                                                                                                                          Jeu de segments pour piston origine Megane 3 RS 1 Jeu comprend le necessaire pour 1 piston
                                                                                                                                                                                          €116.83Price
                                                                                                                                                                                          RENAULT SPORT Assembled Cylinder Head - Renault Twingo R2 EVO 195hpRENAULT SPORT Assembled Cylinder Head - Renault Twingo R2 EVO 195hp
                                                                                                                                                                                              Optimize the performance of your Renault Twingo R2 EVO 195hp with this genuine RENAULT SPORT assembled cylinder head (ref. 7711167644). Supplied with valves, retainers, valve springs, rocker arms, and pushrods, this cylinder head is ready to be installed (camshafts not included). Guaranteed performance and reliability.
                                                                                                                                                                                              €8,104.62Price
                                                                                                                                                                                              RENAULT SPORT Assembled Cylinder Head - Renault Twingo R2 EVO 195hpRENAULT SPORT Assembled Cylinder Head - Renault Twingo R2 EVO 195hp
                                                                                                                                                                                                  Optimize the performance of your Renault Twingo R2 EVO 195hp with this genuine RENAULT SPORT assembled cylinder head (ref. 7711167644). Supplied with valves, retainers, valve springs, rocker arms, and pushrods, this cylinder head is ready to be installed (camshafts not included). Guaranteed performance and reliability.
                                                                                                                                                                                                  €8,104.62Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €39.82 Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €39.82 Price
                                                                                                                                                                                                  Silent Bloc Powerflex Anti Cabrage Sup Clio 3 RS
                                                                                                                                                                                                      Silent Bloc Powerflex Anti Cabrage Superieur pour Clio 3 RS Produit à inserieur en lieu et place du silent bloc d'origine
                                                                                                                                                                                                      €39.82Price
                                                                                                                                                                                                      Silent Bloc Powerflex Anti Cabrage Sup Clio 3 RS
                                                                                                                                                                                                          Silent Bloc Powerflex Anti Cabrage Superieur pour Clio 3 RS Produit à inserieur en lieu et place du silent bloc d'origine
                                                                                                                                                                                                          €39.82Price
                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                          €5.63 Price
                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                          €5.63 Price
                                                                                                                                                                                                          Joint de queue de soupape
                                                                                                                                                                                                              Joint de queue de soupape Attention pour Megane 3 RS les joints sont différents entre admission et échappement Vendu à l'unité
                                                                                                                                                                                                              €5.63Price
                                                                                                                                                                                                              Joint de queue de soupape
                                                                                                                                                                                                                  Joint de queue de soupape Attention pour Megane 3 RS les joints sont différents entre admission et échappement Vendu à l'unité
                                                                                                                                                                                                                  €5.63Price
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €15.49 Price
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €15.49 Price
                                                                                                                                                                                                                  bague étanchéité bobine crayon
                                                                                                                                                                                                                      The Renault ignition coil seal (gasket) is an original part designed to ensure perfect sealing and optimal performance of the ignition system on Renault Twingo 2 RS, Renault Clio 3 RS, Renault Clio R3, Renault Clio 3 X85 Cup, Renault Megane 2 RS, Renault Megane 3 RS, and Renault Megane N4 models.
                                                                                                                                                                                                                      €15.49Price
                                                                                                                                                                                                                      bague étanchéité bobine crayon
                                                                                                                                                                                                                          The Renault ignition coil seal (gasket) is an original part designed to ensure perfect sealing and optimal performance of the ignition system on Renault Twingo 2 RS, Renault Clio 3 RS, Renault Clio R3, Renault Clio 3 X85 Cup, Renault Megane 2 RS, Renault Megane 3 RS, and Renault Megane N4 models.
                                                                                                                                                                                                                          €15.49Price
                                                                                                                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                                                                                                                          €10.72 Price
                                                                                                                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                                                                                                                          €10.72 Price
                                                                                                                                                                                                                          • New
                                                                                                                                                                                                                            Genuine Renault mounting bolt sold individually, specifically designed to secure the timing side engine mount to the chassis. Essential to ensure perfect alignment of the engine block and prevent severe vibrations or hardware failure on your Renault Clio 2 RS or Clio 2 Group N race car.
                                                                                                                                                                                                                            €10.72Price
                                                                                                                                                                                                                            • New
                                                                                                                                                                                                                              Genuine Renault mounting bolt sold individually, specifically designed to secure the timing side engine mount to the chassis. Essential to ensure perfect alignment of the engine block and prevent severe vibrations or hardware failure on your Renault Clio 2 RS or Clio 2 Group N race car.
                                                                                                                                                                                                                              €10.72Price