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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: Entretien
  • Categories: Préparation intérieure
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  • Categories: Support moteur
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
          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
                  €224.35 Price
                  En Stock
                  €224.35 Price
                  Kit Joint Refection moteur Origine Clio 2 RS
                      Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
                      €224.35Price
                      Kit Joint Refection moteur Origine Clio 2 RS
                          Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
                          €224.35Price
                          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
                                  Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                      Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                      €14.95Price
                                      Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                          Ressort de soupapes Clio 3 RS y compris X85 Cup et R3 Max 230 - Megane 3 RS
                                          €14.95Price
                                          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
                                                  Joint de queue de soupape echappement Megane 3 RS et N4Joint de queue de soupape echappement Megane 3 RS et N4
                                                      Joint de queue de soupape echappement Megane 3 RS et N4 Vendu à l'unité Véritable produit d'origine
                                                      €7.80Price
                                                      Joint de queue de soupape echappement Megane 3 RS et N4Joint de queue de soupape echappement Megane 3 RS et N4
                                                          Joint de queue de soupape echappement Megane 3 RS et N4 Vendu à l'unité Véritable produit d'origine
                                                          €7.80Price
                                                          En Stock
                                                          €174.00 Price
                                                          En Stock
                                                          €174.00 Price
                                                          Joint de Culasse renforcé Cometic Megane 3 RS 1.7Joint de Culasse renforcé Cometic Megane 3 RS 1.7
                                                              Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.7 mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                              €174.00Price
                                                              Joint de Culasse renforcé Cometic Megane 3 RS 1.7Joint de Culasse renforcé Cometic Megane 3 RS 1.7
                                                                  Joint de culasse Cometic. Alésage du joint 83mm épaisseur du joint 1.7 mm Haute résistance. Composés de trois feuilles d'acier inoxydable pour améliorer la solidité et la résistance à la corrosion. D'autres alesages et épaisseur disponibles, nous contacter.
                                                                  €174.00Price
                                                                  En Stock
                                                                  €1,326.07 Price
                                                                  En Stock
                                                                  €1,326.07 Price
                                                                  AAC Admission loi 286TR2A2 Twingo R2 205
                                                                      AAC Admission loi 286TR2A2 Twingo R2 205 Référence: 7711167674
                                                                      €1,326.07Price
                                                                      AAC Admission loi 286TR2A2 Twingo R2 205
                                                                          AAC Admission loi 286TR2A2 Twingo R2 205 Référence: 7711167674
                                                                          €1,326.07Price
                                                                          Joint spy Vilebrequin côté distribution R21 turboRenault Crankshaft Oil Seal, Timing Side - Formula Renault / Renault 21 2L Turbo
                                                                              Renault Crankshaft Oil Seal, Timing Side - Formula Renault / R21 2L Turbo Ensure your engine's sealing with this original Renault crankshaft oil seal. Designed for Formula Renault and Renault 21 2L Turbo, it prevents oil leaks and guarantees your engine's longevity. Original Renault Part Crankshaft oil seal, timing side ...
                                                                              €20.87Price
                                                                              Joint spy Vilebrequin côté distribution R21 turboRenault Crankshaft Oil Seal, Timing Side - Formula Renault / Renault 21 2L Turbo
                                                                                  Renault Crankshaft Oil Seal, Timing Side - Formula Renault / R21 2L Turbo Ensure your engine's sealing with this original Renault crankshaft oil seal. Designed for Formula Renault and Renault 21 2L Turbo, it prevents oil leaks and guarantees your engine's longevity. Original Renault Part Crankshaft oil seal, timing side ...
                                                                                  €20.87Price
                                                                                  En Stock
                                                                                  €20.80 Price
                                                                                  En Stock
                                                                                  €20.80 Price
                                                                                  Exhaust Manifold Gasket | Renault Twingo 2 RS / R2
                                                                                      Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
                                                                                      €20.80Price
                                                                                      Exhaust Manifold Gasket | Renault Twingo 2 RS / R2
                                                                                          Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
                                                                                          €20.80Price
                                                                                          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
                                                                                                  €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
                                                                                                          En Stock
                                                                                                          €27.31 Price
                                                                                                          En Stock
                                                                                                          €27.31 Price
                                                                                                          Joint Spy Vilebrequin Twingo RS y compris R1 et  R2
                                                                                                              Joint Spy Vilebrequin Twingo RS y compris R1 et R2 Référence: 770086072
                                                                                                              €27.31Price
                                                                                                              Joint Spy Vilebrequin Twingo RS y compris R1 et  R2
                                                                                                                  Joint Spy Vilebrequin Twingo RS y compris R1 et R2 Référence: 770086072
                                                                                                                  €27.31Price
                                                                                                                  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
                                                                                                                          Collection de 3 segments pour piston Twingo RS R1 et R2 160
                                                                                                                              Original RENAULT Piston Ring Set for Twingo 2 RS (for 1 piston) Do not compromise the compression and power of your Twingo 2 RS engine. This original RENAULT piston...
                                                                                                                              €68.32Price
                                                                                                                              Collection de 3 segments pour piston Twingo RS R1 et R2 160
                                                                                                                                  Original RENAULT Piston Ring Set for Twingo 2 RS (for 1 piston) Do not compromise the compression and power of your Twingo 2 RS engine. This original RENAULT piston...
                                                                                                                                  €68.32Price
                                                                                                                                  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
                                                                                                                                          Valve pression carter PCV Clio 4 RSGenuine Renault PCV Valve - Clio 4 RS / Mégane 4 RS & GT 205
                                                                                                                                              Don't let a poorly managed crankcase pressure impact the health of your engine! Get the genuine Renault PCV Valve (Crankcase Pressure Valve) , an essential part for the Renault Clio 4 RS , Mégane 4 RS , or Mégane 4 GT 205 . A faulty valve leads to oil leaks and loss of...
                                                                                                                                              €66.43Price
                                                                                                                                              Valve pression carter PCV Clio 4 RSGenuine Renault PCV Valve - Clio 4 RS / Mégane 4 RS & GT 205
                                                                                                                                                  Don't let a poorly managed crankcase pressure impact the health of your engine! Get the genuine Renault PCV Valve (Crankcase Pressure Valve) , an essential part for the Renault Clio 4 RS , Mégane 4 RS , or Mégane 4 GT 205 . A faulty valve leads to oil leaks and loss of...
                                                                                                                                                  €66.43Price
                                                                                                                                                  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
                                                                                                                                                          €110.08 Price
                                                                                                                                                          En Stock
                                                                                                                                                          €110.08 Price
                                                                                                                                                          Galet tendeur accessoire Clio 3 RS - Megane 3 RS
                                                                                                                                                              Galet tendeur accessoire Megane 3 RS Véritable produit d'origine
                                                                                                                                                              €110.08Price
                                                                                                                                                              Galet tendeur accessoire Clio 3 RS - Megane 3 RS
                                                                                                                                                                  Galet tendeur accessoire Megane 3 RS Véritable produit d'origine
                                                                                                                                                                  €110.08Price
                                                                                                                                                                  Oil Filter - Renault Clio 4 RS, Megane 4 RS, Alpine A110Oil Filter - Renault Clio 4 RS, Megane 4 RS, Alpine A110
                                                                                                                                                                      Preserve your engine's integrity with this genuine Renault oil filter . Specifically engineered for the high-performance engines found in the Renault Clio 4 RS (1.6 Turbo), Renault Megane 4 RS , and Alpine A110 (1.8 Turbo), this filter guarantees optimal removal of impurities. ...
                                                                                                                                                                      €11.34Price
                                                                                                                                                                      Oil Filter - Renault Clio 4 RS, Megane 4 RS, Alpine A110Oil Filter - Renault Clio 4 RS, Megane 4 RS, Alpine A110
                                                                                                                                                                          Preserve your engine's integrity with this genuine Renault oil filter . Specifically engineered for the high-performance engines found in the Renault Clio 4 RS (1.6 Turbo), Renault Megane 4 RS , and Alpine A110 (1.8 Turbo), this filter guarantees optimal removal of impurities. ...
                                                                                                                                                                          €11.34Price
                                                                                                                                                                          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
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €39.82 Price
                                                                                                                                                                                  En Stock
                                                                                                                                                                                  €39.82 Price
                                                                                                                                                                                  Silent Bloc Powerflex Anti Cabrage Sup Clio 3 RS
                                                                                                                                                                                      Silent Bloc Powerflex Anti Cabrage Superieur pour Clio 3 RS Produit à inserieur en lieu et place du silent bloc d'origine
                                                                                                                                                                                      €39.82Price
                                                                                                                                                                                      Silent Bloc Powerflex Anti Cabrage Sup Clio 3 RS
                                                                                                                                                                                          Silent Bloc Powerflex Anti Cabrage Superieur pour Clio 3 RS Produit à inserieur en lieu et place du silent bloc d'origine
                                                                                                                                                                                          €39.82Price
                                                                                                                                                                                          En Stock
                                                                                                                                                                                          €4.37 Price
                                                                                                                                                                                          En Stock
                                                                                                                                                                                          €4.37 Price
                                                                                                                                                                                          Bouchon de vidange carter d'huile moteur
                                                                                                                                                                                              Bouchon de vidange carter d'huile moteur Produit compatible pour Clio 2 RS, Clio 3 RS, Megane 2 RS et Megane 3 RS
                                                                                                                                                                                              €4.37Price
                                                                                                                                                                                              Bouchon de vidange carter d'huile moteur
                                                                                                                                                                                                  Bouchon de vidange carter d'huile moteur Produit compatible pour Clio 2 RS, Clio 3 RS, Megane 2 RS et Megane 3 RS
                                                                                                                                                                                                  €4.37Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €9.89 Price
                                                                                                                                                                                                  En Stock
                                                                                                                                                                                                  €9.89 Price
                                                                                                                                                                                                  Plot Caoutchouc cache supérieur moteur Megane RS
                                                                                                                                                                                                      Plot Caoutchouc cache supérieur moteur Véritable produit d'origine pour Megane 2 RS et Megane 3 RS
                                                                                                                                                                                                      €9.89Price
                                                                                                                                                                                                      Plot Caoutchouc cache supérieur moteur Megane RS
                                                                                                                                                                                                          Plot Caoutchouc cache supérieur moteur Véritable produit d'origine pour Megane 2 RS et Megane 3 RS
                                                                                                                                                                                                          €9.89Price
                                                                                                                                                                                                          Vis de fixation de poulie de vilebrequin (damper) Clio 2 RS
                                                                                                                                                                                                              Vis de fixation de poulie de vilebrequin (damper) Clio 2 RS
                                                                                                                                                                                                              €20.00Price
                                                                                                                                                                                                              Vis de fixation de poulie de vilebrequin (damper) Clio 2 RS
                                                                                                                                                                                                                  Vis de fixation de poulie de vilebrequin (damper) Clio 2 RS
                                                                                                                                                                                                                  €20.00Price
                                                                                                                                                                                                                  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
                                                                                                                                                                                                                          €132.37 €161.42 Regular price -18% off Price
                                                                                                                                                                                                                          En Stock
                                                                                                                                                                                                                          €132.37 €161.42 Regular price -18% off Price
                                                                                                                                                                                                                          Kit accessoire Clio 4 RS
                                                                                                                                                                                                                              Kit accessoire Clio 4 RS Véritable produit d'origine
                                                                                                                                                                                                                              €132.37€161.42Regular price-18% offPrice
                                                                                                                                                                                                                              Kit accessoire Clio 4 RS
                                                                                                                                                                                                                                  Kit accessoire Clio 4 RS Véritable produit d'origine
                                                                                                                                                                                                                                  €132.37€161.42Regular price-18% offPrice