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Engine Parts & Tuning Hardware

Unleash Your Engine's Power: Performance Parts & Accessories

At Optimiz Access, we offer a vast lineup of engine performance parts and accessories to boost the output of your sports vehicle or premium automobile. Optimize your engine for extreme performance and enjoy an exhilarating driving experience on both road and track.

Key benefits of engine tuning: substantial horsepower and torque gains for rapid acceleration, sharper throttle response, enhanced mechanical reliability using high-strength components, and tailored custom tuning suited to all engines.

Essential Products to Maximize Engine Performance

Discover all our precision-engineered components designed to increase efficiency and durability in your engine block:

  • Cold Air Intakes & Air Filtration – Performance sports filters and carbon intake systems for maximum air filling.
  • Intercoolers & Charge Coolers – Efficient intake air cooling to sustain consistent power output under heavy loads.
  • Forged Pistons & Connecting Rods – Heavy-duty internal components built to withstand extreme temperatures and boost pressures.
  • Turbos & Superchargers – Forced induction upgrades delivering significant power increases.
  • Ignition & Servicing – Competition spark plugs, high-output ignition coils, and high-performance oil filters.

Industry-Leading Benchmark Brands

We stock top tuning and motorsport manufacturers: Wagner Tuning, Forge Motorsport, Magnecor, Green Filter, BMC Filter, NGK, Vibra Technics, and Powerflex. We also supply OEM factory parts to ensure meticulous engine maintenance.

Why you should Choose Optimiz Access for Your Engine Upgrades

Since 2010, Optimiz Access has specialized in selecting top-tier engine components for the custom upgrading and maintenance of sports vehicles. Located in northern France (Hauts-de-France) — near Lille, Valenciennes, Cambrai, Arras, Seclin, Douai, and Saint-Quentin —, our expert technicians guide your hardware selection and provide professional installation in our workshop. We ensure strict quality control along with fast worldwide shipping.

Unleash Your Engine's Full Potential Today

Give your car the raw power and sharp response it deserves. Trust the expertise of Optimiz Access, select your engine performance parts today, and benefit from our fast dispatch.

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  • Categories: Circuit d'eau
  • Categories: Kit Allègement
  • Categories: Préparation intérieure
  • Categories: Refroidissement
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
          Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65
              Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65 Référence : 7711065381
              €0.23Price
              Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65
                  Joint trama capteur pression huile Ø8.4x13.8 Clio 2 Cup X65 Référence : 7711065381
                  €0.23Price
                  En Stock
                  €689.93 Price
                  En Stock
                  €689.93 Price
                  Durite inférieure radiateur Clio 2 Rs et Cup
                      Durite inférieure radiateur Clio 2 Cup Référence: 7711155360
                      €689.93Price
                      Durite inférieure radiateur Clio 2 Rs et Cup
                          Durite inférieure radiateur Clio 2 Cup Référence: 7711155360
                          €689.93Price
                          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
                                  Jeu durites Eau Silicone Forge Clio 2 RSJeu durites Eau Silicone Forge Clio 2 RS
                                      Jeu de 6 durites Silicone Forge. Ce kit remplace avantageusement les durites d'origines de la voiture car beaucoup plus résistantes. Apporte également un look visuel racing à votre moteur.
                                      €317.09Price
                                      Jeu durites Eau Silicone Forge Clio 2 RSJeu durites Eau Silicone Forge Clio 2 RS
                                          Jeu de 6 durites Silicone Forge. Ce kit remplace avantageusement les durites d'origines de la voiture car beaucoup plus résistantes. Apporte également un look visuel racing à votre moteur.
                                          €317.09Price
                                          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
                                                  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
                                                          Kit Complet Durites D'eau Clio 3 RSKit Complet Durites D'eau Clio 3 RS
                                                              Kit complet de durites d'eau pour Clio 3 RS. Convient à toutes les Clio 3 RS Ce kit vient en lieu et place des durites d'origine et les remplacent avantageusement.
                                                              €445.18Price
                                                              Kit Complet Durites D'eau Clio 3 RSKit Complet Durites D'eau Clio 3 RS
                                                                  Kit complet de durites d'eau pour Clio 3 RS. Convient à toutes les Clio 3 RS Ce kit vient en lieu et place des durites d'origine et les remplacent avantageusement.
                                                                  €445.18Price
                                                                  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
                                                                          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
                                                                                  €133.31 Price
                                                                                  En Stock
                                                                                  €133.31 Price
                                                                                  Joint de Culasse renforcé CometicJoint de Culasse renforcé Cometic
                                                                                      Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 0.75mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                      €133.31Price
                                                                                      Joint de Culasse renforcé CometicJoint de Culasse renforcé Cometic
                                                                                          Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 0.75mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                                          €133.31Price
                                                                                          En Stock
                                                                                          €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
                                                                                                  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
                                                                                                          €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
                                                                                                                  €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
                                                                                                                          €105.52 Price
                                                                                                                          En Stock
                                                                                                                          €105.52 Price
                                                                                                                          Pompe à eau K4M Twingo Rs R1 et R2
                                                                                                                              Pompe à eau K4M Twingo RS R1 et R2 Référence: 8200582675 Pompe à eau équipé de la poulie métallique, et non de la version en plastique moins fiable.
                                                                                                                              €105.52Price
                                                                                                                              Pompe à eau K4M Twingo Rs R1 et R2
                                                                                                                                  Pompe à eau K4M Twingo RS R1 et R2 Référence: 8200582675 Pompe à eau équipé de la poulie métallique, et non de la version en plastique moins fiable.
                                                                                                                                  €105.52Price
                                                                                                                                  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
                                                                                                                                          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
                                                                                                                                                  Durite modine/radiateur Clio 2 Cup
                                                                                                                                                      The Renault Sport water hose (ref. 7711154249 ) is an essential part to ensure optimal coolant circulation between the water/oil heat exchanger and the radiator of your Renault Clio 2 X65 Cup . It guarantees a stable engine temperature and optimal performance.
                                                                                                                                                      €77.62Price
                                                                                                                                                      Durite modine/radiateur Clio 2 Cup
                                                                                                                                                          The Renault Sport water hose (ref. 7711154249 ) is an essential part to ensure optimal coolant circulation between the water/oil heat exchanger and the radiator of your Renault Clio 2 X65 Cup . It guarantees a stable engine temperature and optimal performance.
                                                                                                                                                          €77.62Price
                                                                                                                                                          Calorstat Clio 3 RS 75°
                                                                                                                                                              Control your engine's temperature with this genuine Renault thermostat with an opening temperature of 75°C . Specifically designed for the Clio 3 RS , it also mounts without modification on the Clio 2 RS , allowing the cooling circuit to open more quickly. This part is essential for limiting temperature spikes and preventing the risk of engine overheating ...
                                                                                                                                                              €78.18Price
                                                                                                                                                              Calorstat Clio 3 RS 75°
                                                                                                                                                                  Control your engine's temperature with this genuine Renault thermostat with an opening temperature of 75°C . Specifically designed for the Clio 3 RS , it also mounts without modification on the Clio 2 RS , allowing the cooling circuit to open more quickly. This part is essential for limiting temperature spikes and preventing the risk of engine overheating ...
                                                                                                                                                                  €78.18Price
                                                                                                                                                                  Joint de queue de soupape echappement Megane 3 RS et N4Joint de queue de soupape echappement Megane 3 RS et N4
                                                                                                                                                                      Joint de queue de soupape echappement Megane 3 RS et N4 Vendu à l'unité Véritable produit d'origine
                                                                                                                                                                      €7.80Price
                                                                                                                                                                      Joint de queue de soupape echappement Megane 3 RS et N4Joint de queue de soupape echappement Megane 3 RS et N4
                                                                                                                                                                          Joint de queue de soupape echappement Megane 3 RS et N4 Vendu à l'unité Véritable produit d'origine
                                                                                                                                                                          €7.80Price
                                                                                                                                                                          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
                                                                                                                                                                                  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
                                                                                                                                                                                          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
                                                                                                                                                                                                  Fixations Forge Capteur Sur RadiateurFORGE MOTORSPORT FMRCLMP Sensor Securing Kit - Megane 2 RS
                                                                                                                                                                                                      Secure the sensors of your Megane 2 RS with the FORGE MOTORSPORT FMRCLMP kit. Composed of 2 reinforcements, it ensures optimal support for the depression hose and pressure sensor. Avoid performance losses and reliability issues.
                                                                                                                                                                                                      €36.80Price
                                                                                                                                                                                                      Fixations Forge Capteur Sur RadiateurFORGE MOTORSPORT FMRCLMP Sensor Securing Kit - Megane 2 RS
                                                                                                                                                                                                          Secure the sensors of your Megane 2 RS with the FORGE MOTORSPORT FMRCLMP kit. Composed of 2 reinforcements, it ensures optimal support for the depression hose and pressure sensor. Avoid performance losses and reliability issues.
                                                                                                                                                                                                          €36.80Price
                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                          €47.34 Price
                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                          €47.34 Price
                                                                                                                                                                                                          Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2
                                                                                                                                                                                                              Genuine Renault Exhaust Valve - Twingo 2 RS, Twingo R1, Twingo R2 160hp Authentic Renault exhaust valve, ensuring optimal sealing and performance. Specific replacement part for Renault Twingo 2 RS, Twingo R1, and Twingo R2 160hp models. Contributes to proper engine operation and efficient exhaust gas...
                                                                                                                                                                                                              €47.34Price
                                                                                                                                                                                                              Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2Genuine Renault Exhaust Valve Twingo 2 RS/R1/R2
                                                                                                                                                                                                                  Genuine Renault Exhaust Valve - Twingo 2 RS, Twingo R1, Twingo R2 160hp Authentic Renault exhaust valve, ensuring optimal sealing and performance. Specific replacement part for Renault Twingo 2 RS, Twingo R1, and Twingo R2 160hp models. Contributes to proper engine operation and efficient exhaust gas...
                                                                                                                                                                                                                  €47.34Price
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €66.48 Price
                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                  €66.48 Price
                                                                                                                                                                                                                  Coussinets de Vilebrequin Trimetal ergotés ACLCoussinets de Vilebrequin Trimetal ergotés ACL
                                                                                                                                                                                                                      Coussinet de vilebrequin trimetal Coussinets pour F7P, F7R, F4R, F4R soit pour Clio 16S, Williams, clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS Présence d'ergots.
                                                                                                                                                                                                                      €66.48Price
                                                                                                                                                                                                                      Coussinets de Vilebrequin Trimetal ergotés ACLCoussinets de Vilebrequin Trimetal ergotés ACL
                                                                                                                                                                                                                          Coussinet de vilebrequin trimetal Coussinets pour F7P, F7R, F4R, F4R soit pour Clio 16S, Williams, clio 2 RS, Clio 3 RS, Megane 2 RS, Megane 3 RS Présence d'ergots.
                                                                                                                                                                                                                          €66.48Price
                                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                                          €81.65 Price
                                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                                          €81.65 Price
                                                                                                                                                                                                                          Bielle Twingo RS R1 et R2 160Bielle Twingo RS R1 et R2 160
                                                                                                                                                                                                                              Connecting Rod for Twingo RS R1 and R2 160: Enhance the durability and performance of your engine with this robust connecting rod, designed for extreme conditions and easy installation.
                                                                                                                                                                                                                              €81.65Price
                                                                                                                                                                                                                              Bielle Twingo RS R1 et R2 160Bielle Twingo RS R1 et R2 160
                                                                                                                                                                                                                                  Connecting Rod for Twingo RS R1 and R2 160: Enhance the durability and performance of your engine with this robust connecting rod, designed for extreme conditions and easy installation.
                                                                                                                                                                                                                                  €81.65Price