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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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En Stock
€80.84 €115.49 Regular price -30% off Price
En Stock
€80.84 €115.49 Regular price -30% off Price
Jeu de Bougies Origine Megane 3 RS et N4
      Do not let poor combustion stifle the potential of your F4RT engine. This set of 4 genuine Renault spark plugs is specifically calibrated to meet the extreme thermal demands of the Renault Megane 3 RS (250, 265, and 275 hp). By choosing these manufacturer-certified plugs, you avoid misfires under full load and protect your cylinders from the risks of...
      €80.84€115.49Regular price-30% offPrice
      Jeu de Bougies Origine Megane 3 RS et N4
          Do not let poor combustion stifle the potential of your F4RT engine. This set of 4 genuine Renault spark plugs is specifically calibrated to meet the extreme thermal demands of the Renault Megane 3 RS (250, 265, and 275 hp). By choosing these manufacturer-certified plugs, you avoid misfires under full load and protect your cylinders from the risks of...
          €80.84€115.49Regular price-30% offPrice
          Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
              Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
              €33.94Price
              Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                  Joint spy vilebrequin côté distribution Twingo RS y compris R1 et R2
                  €33.94Price
                  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
                          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
                                  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
                                          €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
                                                  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
                                                          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
                                                                  €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
                                                                          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
                                                                                  €50.21 €83.68 Regular price -40% off Price
                                                                                  En Stock
                                                                                  €50.21 €83.68 Regular price -40% off Price
                                                                                  Bobine D'allumage
                                                                                      Optimize your engine's combustion cycle with this genuine Renault ignition coil . Sold individually, it is the essential choice for Renault Megane 2 RS , Clio 3 RS , Megane 3 RS , and Twingo 2 RS owners looking to maintain optimal ignition performance. Certified...
                                                                                      €50.21€83.68Regular price-40% offPrice
                                                                                      Bobine D'allumage
                                                                                          Optimize your engine's combustion cycle with this genuine Renault ignition coil . Sold individually, it is the essential choice for Renault Megane 2 RS , Clio 3 RS , Megane 3 RS , and Twingo 2 RS owners looking to maintain optimal ignition performance. Certified...
                                                                                          €50.21€83.68Regular price-40% offPrice
                                                                                          Bague étanchéité arbre à cames Twingo R2Twingo RS (R1/R2) Exhaust Camshaft Oil Seal - Original
                                                                                              The original Renault exhaust camshaft oil seal is an essential sealing part for your Renault Twingo RS, Twingo R1 , or Twingo R2 . It ensures a tight seal between the camshaft, cylinder head, and valve cover, preserving your engine's performance and reliability.
                                                                                              €16.92Price
                                                                                              Bague étanchéité arbre à cames Twingo R2Twingo RS (R1/R2) Exhaust Camshaft Oil Seal - Original
                                                                                                  The original Renault exhaust camshaft oil seal is an essential sealing part for your Renault Twingo RS, Twingo R1 , or Twingo R2 . It ensures a tight seal between the camshaft, cylinder head, and valve cover, preserving your engine's performance and reliability.
                                                                                                  €16.92Price
                                                                                                  En Stock
                                                                                                  €149.05 €212.93 Regular price -30% off Price
                                                                                                  En Stock
                                                                                                  €149.05 €212.93 Regular price -30% off Price
                                                                                                  Jeu de Bougies Renault Clio 4 RS
                                                                                                      Set of 4 spark plugs for...
                                                                                                      €149.05€212.93Regular price-30% offPrice
                                                                                                      Jeu de Bougies Renault Clio 4 RS
                                                                                                          Set of 4 spark plugs for...
                                                                                                          €149.05€212.93Regular price-30% offPrice
                                                                                                          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
                                                                                                                  Bague étanchéité électrovanne déphasage Twingo RS, R1 et R2Bague étanchéité électrovanne déphasage Twingo RS, R1 et R2
                                                                                                                      Bague étanchéité électrovanne de déphasage Twingo RS, R1 et R2
                                                                                                                      €17.09Price
                                                                                                                      Bague étanchéité électrovanne déphasage Twingo RS, R1 et R2Bague étanchéité électrovanne déphasage Twingo RS, R1 et R2
                                                                                                                          Bague étanchéité électrovanne de déphasage Twingo RS, R1 et R2
                                                                                                                          €17.09Price
                                                                                                                          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
                                                                                                                                  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
                                                                                                                                          €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
                                                                                                                                                  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
                                                                                                                                                          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
                                                                                                                                                                  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
                                                                                                                                                                          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
                                                                                                                                                                                  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
                                                                                                                                                                                          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
                                                                                                                                                                                                  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
                                                                                                                                                                                                          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