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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'air
  • Categories: Kit Allègement
  • Categories: Préparation intérieure
Echangeur air/air Megane 3 RS et N4Genuine Renault Air/Air Intercooler for Mégane 3 RS and N4
      Don't accept any loss of performance for your Mégane 3 RS or Mégane N4 ! This strictly genuine Renault air/air intercooler is the cornerstone for maintaining your engine's power and reliability. Without it, your sports vehicle risks never reaching its full potential, especially in extreme conditions. Find complementary products at the bottom...
      €493.96Price
      Echangeur air/air Megane 3 RS et N4Genuine Renault Air/Air Intercooler for Mégane 3 RS and N4
          Don't accept any loss of performance for your Mégane 3 RS or Mégane N4 ! This strictly genuine Renault air/air intercooler is the cornerstone for maintaining your engine's power and reliability. Without it, your sports vehicle risks never reaching its full potential, especially in extreme conditions. Find complementary products at the bottom...
          €493.96Price
          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
                  €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
                          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
                                  €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
                                          Durite Admission Clio 2 RSSilicone Air Induction Hose for Renault Clio 2 RS
                                              Stop letting a perished or cracked factory hose choke your Clio 2 RS engine. This reinforced silicone induction hose is a direct replacement for the OEM rubber part, which is notorious for collapsing under vacuum. Available in various colors for a subtle or race-inspired customization , it ensures...
                                              €69.00Price
                                              Durite Admission Clio 2 RSSilicone Air Induction Hose for Renault Clio 2 RS
                                                  Stop letting a perished or cracked factory hose choke your Clio 2 RS engine. This reinforced silicone induction hose is a direct replacement for the OEM rubber part, which is notorious for collapsing under vacuum. Available in various colors for a subtle or race-inspired customization , it ensures...
                                                  €69.00Price
                                                  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
                                                          €70.25 Price
                                                          En Stock
                                                          €70.25 Price
                                                          Blue Crankshaft Half-Bearing Set
                                                              Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                                                              €70.25Price
                                                              Blue Crankshaft Half-Bearing Set
                                                                  Blue Crankshaft Half-Bearing Set This blue crankshaft half-bearing set is designed for engine applications requiring compatible crankshaft bearing components. Before ordering, check the engine specification and the manufacturer's references to ensure correct fitment.
                                                                  €70.25Price
                                                                  Electrovanne décalage arbre à cames (dephasage) Clio 3 RS phase 2 et Cup X85 et Megane 3 RS
                                                                      Camshaft Phasing Solenoid Valve : genuine RENAULT part essential for the proper function and engine performance of your Renault Clio 3 RS Phase 2 and Renault Megane 3 RS . A faulty component leads to power loss and unstable idling. Ensures optimal...
                                                                      €202.56Price
                                                                      Electrovanne décalage arbre à cames (dephasage) Clio 3 RS phase 2 et Cup X85 et Megane 3 RS
                                                                          Camshaft Phasing Solenoid Valve : genuine RENAULT part essential for the proper function and engine performance of your Renault Clio 3 RS Phase 2 and Renault Megane 3 RS . A faulty component leads to power loss and unstable idling. Ensures optimal...
                                                                          €202.56Price
                                                                          En Stock
                                                                          €10.57 €13.93 Regular price -€3.36 off Price
                                                                          En Stock
                                                                          €10.57 €13.93 Regular price -€3.36 off Price
                                                                          Joint Collecteur Admission Clio 2 RS
                                                                              Ensure vital engine sealing with this genuine Renault intake manifold gasket for the Clio 2 RS (172 and 182hp). This authentic component guarantees a perfect junction between the cylinder head and your manifold, preventing any parasitic air leaks that could degrade the performance of your F4R engine . Do not...
                                                                              €10.57€13.93Regular price-€3.36 offPrice
                                                                              Joint Collecteur Admission Clio 2 RS
                                                                                  Ensure vital engine sealing with this genuine Renault intake manifold gasket for the Clio 2 RS (172 and 182hp). This authentic component guarantees a perfect junction between the cylinder head and your manifold, preventing any parasitic air leaks that could degrade the performance of your F4R engine . Do not...
                                                                                  €10.57€13.93Regular price-€3.36 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
                                                                                          €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
                                                                                                  €13.37 Price
                                                                                                  En Stock
                                                                                                  €13.37 Price
                                                                                                  Joint Plenum Clio 2 RS
                                                                                                      Joint Plenum Clio 2 RS. Joint permettant de faire l’étanchéité entre le collecteur d'admission et le plenum Il est conseillé de le changer lors à chaque démontage et donc lors du retaillage de l'ensemble collecteur / plenum
                                                                                                      €13.37Price
                                                                                                      Joint Plenum Clio 2 RS
                                                                                                          Joint Plenum Clio 2 RS. Joint permettant de faire l’étanchéité entre le collecteur d'admission et le plenum Il est conseillé de le changer lors à chaque démontage et donc lors du retaillage de l'ensemble collecteur / plenum
                                                                                                          €13.37Price
                                                                                                          Divergent boitier filtre assemblé Twingo R2
                                                                                                              Optimize the air intake of your Renault Twingo R2 (195/205hp) with this official RENAULT SPORT air filter housing diverter . Developed for competition, this part with reference 7711167591 is essential for maximizing airflow and ensuring maximum engine power across the entire operating range. An indispensable addition for engine performance .
                                                                                                              €511.63Price
                                                                                                              Divergent boitier filtre assemblé Twingo R2
                                                                                                                  Optimize the air intake of your Renault Twingo R2 (195/205hp) with this official RENAULT SPORT air filter housing diverter . Developed for competition, this part with reference 7711167591 is essential for maximizing airflow and ensuring maximum engine power across the entire operating range. An indispensable addition for engine performance .
                                                                                                                  €511.63Price
                                                                                                                  Dispo selon configuration
                                                                                                                  €6.00 Price
                                                                                                                  Dispo selon configuration
                                                                                                                  €6.00 Price
                                                                                                                  Tuyau de dépressionTuyau de dépression
                                                                                                                      Tuyau de depression de diamètre 4mm. Sert généralement pour l'installation de Dump Valve. Prix au metre
                                                                                                                      €6.00Price
                                                                                                                      Tuyau de dépressionTuyau de dépression
                                                                                                                          Tuyau de depression de diamètre 4mm. Sert généralement pour l'installation de Dump Valve. Prix au metre
                                                                                                                          €6.00Price
                                                                                                                          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
                                                                                                                                  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
                                                                                                                                          €25.61 Price
                                                                                                                                          En Stock
                                                                                                                                          €25.61 Price
                                                                                                                                          Filtre à air origine Clio 2 RS
                                                                                                                                              Filtre à air origine Clio 2 RS Véritable produit d'origine Ne convient pas à la boite a air cylindrique des clio RS1
                                                                                                                                              €25.61Price
                                                                                                                                              Filtre à air origine Clio 2 RS
                                                                                                                                                  Filtre à air origine Clio 2 RS Véritable produit d'origine Ne convient pas à la boite a air cylindrique des clio RS1
                                                                                                                                                  €25.61Price
                                                                                                                                                  En Stock
                                                                                                                                                  €139.14 Price
                                                                                                                                                  En Stock
                                                                                                                                                  €139.14 Price
                                                                                                                                                  Piston équipé C (X82.70) Clio 3 RS
                                                                                                                                                      The Renault complete piston (index C) is an original part, supplied with pin and pin clips, designed for your Renault Clio 3 RS and Renault Clio 3 X85 Cup . It ensures optimal engine performance and increased reliability.
                                                                                                                                                      €139.14Price
                                                                                                                                                      Piston équipé C (X82.70) Clio 3 RS
                                                                                                                                                          The Renault complete piston (index C) is an original part, supplied with pin and pin clips, designed for your Renault Clio 3 RS and Renault Clio 3 X85 Cup . It ensures optimal engine performance and increased reliability.
                                                                                                                                                          €139.14Price
                                                                                                                                                          En Stock
                                                                                                                                                          €2.08 Price
                                                                                                                                                          En Stock
                                                                                                                                                          €2.08 Price
                                                                                                                                                          Collier serrage inox (durite) diametre 60-80mmCollier serrage inox (durite) diametre 60-80mm
                                                                                                                                                              Collier serrage inox (durite) diametre 60-80mm Vendu à l'unité
                                                                                                                                                              €2.08Price
                                                                                                                                                              Collier serrage inox (durite) diametre 60-80mmCollier serrage inox (durite) diametre 60-80mm
                                                                                                                                                                  Collier serrage inox (durite) diametre 60-80mm Vendu à l'unité
                                                                                                                                                                  €2.08Price
                                                                                                                                                                  En Stock
                                                                                                                                                                  €5.66 Price
                                                                                                                                                                  En Stock
                                                                                                                                                                  €5.66 Price
                                                                                                                                                                  Vis de fixation galet enrouleur de distribution K4MVis de fixation galet enrouleur de distribution K4M
                                                                                                                                                                      Vis de fixation galet enrouleur de distribution K4M 8200581340
                                                                                                                                                                      €5.66Price
                                                                                                                                                                      Vis de fixation galet enrouleur de distribution K4MVis de fixation galet enrouleur de distribution K4M
                                                                                                                                                                          Vis de fixation galet enrouleur de distribution K4M 8200581340
                                                                                                                                                                          €5.66Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €1.00 Price
                                                                                                                                                                          En Stock
                                                                                                                                                                          €1.00 Price
                                                                                                                                                                          Collier serrage inox (durite) diametre 8-12mm
                                                                                                                                                                              Collier serrage inox (durite) diametre 8-12mm Vendu à l'unité
                                                                                                                                                                              €1.00Price
                                                                                                                                                                              Collier serrage inox (durite) diametre 8-12mm
                                                                                                                                                                                  Collier serrage inox (durite) diametre 8-12mm Vendu à l'unité
                                                                                                                                                                                  €1.00Price
                                                                                                                                                                                  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
                                                                                                                                                                                          €40.84 Price
                                                                                                                                                                                          En Stock
                                                                                                                                                                                          €40.84 Price
                                                                                                                                                                                          Capteur température d'air Twingo RS, R1 et R2
                                                                                                                                                                                              Capteur température d'air Twingo RS, R1 et R2 Référence: 7711162828
                                                                                                                                                                                              €40.84Price
                                                                                                                                                                                              Capteur température d'air Twingo RS, R1 et R2
                                                                                                                                                                                                  Capteur température d'air Twingo RS, R1 et R2 Référence: 7711162828
                                                                                                                                                                                                  €40.84Price
                                                                                                                                                                                                  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
                                                                                                                                                                                                          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
                                                                                                                                                                                                                  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
                                                                                                                                                                                                                          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
                                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                                  €1.00 Price
                                                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                                                  €1.00 Price
                                                                                                                                                                                                                                  Collier serrage inox (durite) diametre 12-20mm
                                                                                                                                                                                                                                      Collier serrage inox (durite) diametre 12-20mm Vendu à l'unité
                                                                                                                                                                                                                                      €1.00Price
                                                                                                                                                                                                                                      Collier serrage inox (durite) diametre 12-20mm
                                                                                                                                                                                                                                          Collier serrage inox (durite) diametre 12-20mm Vendu à l'unité
                                                                                                                                                                                                                                          €1.00Price
                                                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                                                          €486.55 Price
                                                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                                                          €486.55 Price
                                                                                                                                                                                                                                          Collecteur admission Clio 2 X65 Cup et Gr N
                                                                                                                                                                                                                                              Collecteur admission Clio 2 X65 Cup et Gr N Prévu pour papillon mécanique
                                                                                                                                                                                                                                              €486.55Price
                                                                                                                                                                                                                                              Collecteur admission Clio 2 X65 Cup et Gr N
                                                                                                                                                                                                                                                  Collecteur admission Clio 2 X65 Cup et Gr N Prévu pour papillon mécanique
                                                                                                                                                                                                                                                  €486.55Price