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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: Kit Allègement
  • Categories: Préparation intérieure
  • Categories: Refroidissement
  • Categories: Support moteur
En Stock
€133.39 Price
En Stock
€133.39 Price
Joint de Culasse Cometic Clio 16S /WilliamsJoint de Culasse Cometic Clio 16S /Williams
      Joint de culasse Cometic. Haute résistance. Alesage 83 mm , Epaisseur 0.76 Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. Nous contacter pour connaitre les épaisseurs possibles D'autres alesages et épaisseur disponibles, nous contacter.
      €133.39Price
      Joint de Culasse Cometic Clio 16S /WilliamsJoint de Culasse Cometic Clio 16S /Williams
          Joint de culasse Cometic. Haute résistance. Alesage 83 mm , Epaisseur 0.76 Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. Nous contacter pour connaitre les épaisseurs possibles D'autres alesages et épaisseur disponibles, nous contacter.
          €133.39Price
          Carter Huile Clio 3 RS - Megane 3 RS - Megane 2 RSOEM Renault Oil Pan - Clio 3 RS, Megane 2 RS, Megane 3 RS
              Don't gamble with your engine's lubrication. This genuine Renault OEM oil pan is the only component that guarantees a perfect seal and thermal resistance meeting the strict requirements of your Renault Clio 3 RS , Megane 2 RS , or Megane 3 RS . By choosing this certified part, you avoid micro-cracks and warping issues common in...
              €265.93Price
              Carter Huile Clio 3 RS - Megane 3 RS - Megane 2 RSOEM Renault Oil Pan - Clio 3 RS, Megane 2 RS, Megane 3 RS
                  Don't gamble with your engine's lubrication. This genuine Renault OEM oil pan is the only component that guarantees a perfect seal and thermal resistance meeting the strict requirements of your Renault Clio 3 RS , Megane 2 RS , or Megane 3 RS . By choosing this certified part, you avoid micro-cracks and warping issues common in...
                  €265.93Price
                  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
                          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
                                  En Stock
                                  €70.25 Price
                                  En Stock
                                  €70.25 Price
                                  Blue Crankshaft Half-Bearing Set
                                      Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                                      €70.25Price
                                      Blue Crankshaft Half-Bearing Set
                                          Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                                          €70.25Price
                                          En Stock
                                          €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
                                                  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
                                                          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
                                                                  Vis de bielle origine
                                                                      Secure your performance engine's bottom end with this genuine RENAULT connecting rod bolt , sold individually. Engineered to withstand high RPMs, it is essential for the maintenance and personalization of Clio 2 RS , Clio 3 RS , Megane 2/3 RS , and Clio Williams ...
                                                                      €8.56Price
                                                                      Vis de bielle origine
                                                                          Secure your performance engine's bottom end with this genuine RENAULT connecting rod bolt , sold individually. Engineered to withstand high RPMs, it is essential for the maintenance and personalization of Clio 2 RS , Clio 3 RS , Megane 2/3 RS , and Clio Williams ...
                                                                          €8.56Price
                                                                          En Stock
                                                                          €3.16 Price
                                                                          En Stock
                                                                          €3.16 Price
                                                                          Clip maintien support linguet Twingo R2 195/205
                                                                              Clip maintien support linguet Twingo R2 195/205 Référence: 7711167614
                                                                              €3.16Price
                                                                              Clip maintien support linguet Twingo R2 195/205
                                                                                  Clip maintien support linguet Twingo R2 195/205 Référence: 7711167614
                                                                                  €3.16Price
                                                                                  En Stock
                                                                                  €224.35 Price
                                                                                  En Stock
                                                                                  €224.35 Price
                                                                                  Kit Joint Refection moteur Origine Clio 2 RS
                                                                                      Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
                                                                                      €224.35Price
                                                                                      Kit Joint Refection moteur Origine Clio 2 RS
                                                                                          Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
                                                                                          €224.35Price
                                                                                          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
                                                                                                  En Stock
                                                                                                  €211.80 Price
                                                                                                  En Stock
                                                                                                  €211.80 Price
                                                                                                  Pompe à huileRenault Sport Oil Pump - Clio 2/3 RS & Megane 2/3 RS
                                                                                                      Secure your engine block's lubrication with this high-performance oil pump for Renault 2.0L engines. Essential for maintaining constant oil pressure, it is compatible with Clio 2 RS , Clio 3 RS , as well as X65 Cup ,...
                                                                                                      €211.80Price
                                                                                                      Pompe à huileRenault Sport Oil Pump - Clio 2/3 RS & Megane 2/3 RS
                                                                                                          Secure your engine block's lubrication with this high-performance oil pump for Renault 2.0L engines. Essential for maintaining constant oil pressure, it is compatible with Clio 2 RS , Clio 3 RS , as well as X65 Cup ,...
                                                                                                          €211.80Price
                                                                                                          En Stock
                                                                                                          €1,326.07 Price
                                                                                                          En Stock
                                                                                                          €1,326.07 Price
                                                                                                          AAC Admission loi 286TR2A2 Twingo R2 205
                                                                                                              AAC Admission loi 286TR2A2 Twingo R2 205 Référence: 7711167674
                                                                                                              €1,326.07Price
                                                                                                              AAC Admission loi 286TR2A2 Twingo R2 205
                                                                                                                  AAC Admission loi 286TR2A2 Twingo R2 205 Référence: 7711167674
                                                                                                                  €1,326.07Price
                                                                                                                  Genuine RENAULT Oil Drain Plug - All Clio/Mégane RS Models
                                                                                                                      Protect your engine against critical leaks! Replace your genuine oil drain plug with this RENAULT reference, essential for all Clio RS , Mégane RS models and competition derivatives (Gr N, R3, X85 Cup). A quality screw guarantees the seal of the oil pan (sump), preventing a ...
                                                                                                                      €4.72Price
                                                                                                                      Genuine RENAULT Oil Drain Plug - All Clio/Mégane RS Models
                                                                                                                          Protect your engine against critical leaks! Replace your genuine oil drain plug with this RENAULT reference, essential for all Clio RS , Mégane RS models and competition derivatives (Gr N, R3, X85 Cup). A quality screw guarantees the seal of the oil pan (sump), preventing a ...
                                                                                                                          €4.72Price
                                                                                                                          En Stock
                                                                                                                          €251.47 Price
                                                                                                                          En Stock
                                                                                                                          €251.47 Price
                                                                                                                          Kit Joint Refection moteur Origine Megane 3 RSKit Joint Refection moteur Origine Megane 3 RS
                                                                                                                              Ensemble de joints nécessaire au bon remontage du moteur de Megane 3 RS Véritable produit d'origine
                                                                                                                              €251.47Price
                                                                                                                              Kit Joint Refection moteur Origine Megane 3 RSKit Joint Refection moteur Origine Megane 3 RS
                                                                                                                                  Ensemble de joints nécessaire au bon remontage du moteur de Megane 3 RS Véritable produit d'origine
                                                                                                                                  €251.47Price
                                                                                                                                  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
                                                                                                                                          Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65
                                                                                                                                              Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65 Référence : 7711065381
                                                                                                                                              €0.23Price
                                                                                                                                              Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65
                                                                                                                                                  Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65 Référence : 7711065381
                                                                                                                                                  €0.23Price
                                                                                                                                                  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
                                                                                                                                                                  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
                                                                                                                                                                          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
                                                                                                                                                                                  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
                                                                                                                                                                                                  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
                                                                                                                                                                                                          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