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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: Entretien
  • Categories: Préparation intérieure
Ressort de soupape Clio 2 RS y compris Gr N et X65 Cup
      Ressort de soupape Clio 2 RS y compris Gr N et X65 Cup. Convient pour les soupapes d'admission et d'échappement
      €15.01Price
      Ressort de soupape Clio 2 RS y compris Gr N et X65 Cup
          Ressort de soupape Clio 2 RS y compris Gr N et X65 Cup. Convient pour les soupapes d'admission et d'échappement
          €15.01Price
          En Stock
          €59.28 Price
          En Stock
          €59.28 Price
          Renault Twingo R2 plain crankshaft bearing – ref. 7711167587Plain Crankshaft Bearing Renault Twingo R2
              The 7711167587 plain crankshaft bearing is a replacement engine component designed for the Renault Twingo R2 . It is part of the crankshaft bearing system and contributes to correct crankshaft guidance and engine lubrication. On a Renault Twingo R2 competition engine , crankshaft bearings are exposed to significant mechanical and...
              €59.28Price
              Renault Twingo R2 plain crankshaft bearing – ref. 7711167587Plain Crankshaft Bearing Renault Twingo R2
                  The 7711167587 plain crankshaft bearing is a replacement engine component designed for the Renault Twingo R2 . It is part of the crankshaft bearing system and contributes to correct crankshaft guidance and engine lubrication. On a Renault Twingo R2 competition engine , crankshaft bearings are exposed to significant mechanical and...
                  €59.28Price
                  En Stock
                  €75.68 Price
                  En Stock
                  €75.68 Price
                  Coussinet de Vilebrequin rainuré 195cv Twingo R2Coussinet de Vilebrequin rainuré 195cv Twingo R2
                      Coussinet de Vilebrequin rainuré 195cv Twingo R2 Référence: 7711167588
                      €75.68Price
                      Coussinet de Vilebrequin rainuré 195cv Twingo R2Coussinet de Vilebrequin rainuré 195cv Twingo R2
                          Coussinet de Vilebrequin rainuré 195cv Twingo R2 Référence: 7711167588
                          €75.68Price
                          En Stock
                          €5,790.00 Price
                          En Stock
                          €5,790.00 Price
                              Moteur K4M 1.6 16v Vendu avec embrayage, volant moteur, papillon, bobines, bougies... Moteur neuf (pas un echange standard)
                              €5,790.00Price
                                  Moteur K4M 1.6 16v Vendu avec embrayage, volant moteur, papillon, bobines, bougies... Moteur neuf (pas un echange standard)
                                  €5,790.00Price
                                  En Stock
                                  €7.55 Price
                                  En Stock
                                  €7.55 Price
                                  Engine Undertray Fixing Screw Renault Clio 2 RS
                                      Renault Clio 2 RS Undertray Fixing Screw Fixing screw designed for securing the engine undertray on compatible Renault Clio 2 RS models. Suitable for replacing a missing or worn fastener to help keep the lower engine cover securely fitted.
                                      €7.55Price
                                      Engine Undertray Fixing Screw Renault Clio 2 RS
                                          Renault Clio 2 RS Undertray Fixing Screw Fixing screw designed for securing the engine undertray on compatible Renault Clio 2 RS models. Suitable for replacing a missing or worn fastener to help keep the lower engine cover securely fitted.
                                          €7.55Price
                                          En Stock
                                          €130.66 Price
                                          En Stock
                                          €130.66 Price
                                          Auxiliary Belt Tensioner Renault Megane 4 GT 205Auxiliary Belt Tensioner Renault Megane 4 GT 205
                                              Auxiliary Belt Tensioner – Renault Megane 4 GT 205 Auxiliary belt tensioner designed for compatible Renault Megane 4 GT 205 models. It helps maintain the correct tension of the auxiliary drive belt to support reliable operation of belt-driven engine accessories.
                                              €130.66Price
                                              Auxiliary Belt Tensioner Renault Megane 4 GT 205Auxiliary Belt Tensioner Renault Megane 4 GT 205
                                                  Auxiliary Belt Tensioner – Renault Megane 4 GT 205 Auxiliary belt tensioner designed for compatible Renault Megane 4 GT 205 models. It helps maintain the correct tension of the auxiliary drive belt to support reliable operation of belt-driven engine accessories.
                                                  €130.66Price
                                                  Coussinets de Bielles Trimetal ergotés
                                                    • Pack
                                                    ACL RACE Grooved Connecting Rod Bearing Kit - Clio 2 RS / Gr N / X65 Cup Optimize the performance of your Renault Clio 2 RS engine with this ACL RACE grooved connecting rod bearing kit. Designed for modified or grooved connecting rods, they offer increased resistance and better lubrication. Essential for high-performance engines.
                                                    €50.68Price
                                                    Coussinets de Bielles Trimetal ergotés
                                                      • Pack
                                                      ACL RACE Grooved Connecting Rod Bearing Kit - Clio 2 RS / Gr N / X65 Cup Optimize the performance of your Renault Clio 2 RS engine with this ACL RACE grooved connecting rod bearing kit. Designed for modified or grooved connecting rods, they offer increased resistance and better lubrication. Essential for high-performance engines.
                                                      €50.68Price
                                                      En Stock
                                                      €5.53 Price
                                                      En Stock
                                                      €5.53 Price
                                                      Demi Bague conique soupape
                                                          Optimize the Performance and Reliability of Your Renault RS or Twingo RS with the Genuine Renault Valve Collet Manufactured by Renault, this valve collet is specifically designed to meet the precise requirements of Renault RS and Twingo RS engines. It delivers OEM-quality, durability, and performance, making it the ideal choice for drivers seeking reliability and...
                                                          €5.53Price
                                                          Demi Bague conique soupape
                                                              Optimize the Performance and Reliability of Your Renault RS or Twingo RS with the Genuine Renault Valve Collet Manufactured by Renault, this valve collet is specifically designed to meet the precise requirements of Renault RS and Twingo RS engines. It delivers OEM-quality, durability, and performance, making it the ideal choice for drivers seeking reliability and...
                                                              €5.53Price
                                                              Cible capteur AAC moteur K4M Twingo 2 RS y compris R1 et R2Cible capteur AAC moteur K4M Twingo 2 RS y compris R1 et R2
                                                                  Cible capteur AAC moteur K4M Twingo 2 RS y compris R1 et R2
                                                                  €46.04Price
                                                                  Cible capteur AAC moteur K4M Twingo 2 RS y compris R1 et R2Cible capteur AAC moteur K4M Twingo 2 RS y compris R1 et R2
                                                                      Cible capteur AAC moteur K4M Twingo 2 RS y compris R1 et R2
                                                                      €46.04Price
                                                                      En Stock
                                                                      €31.26 Price
                                                                      En Stock
                                                                      €31.26 Price
                                                                      Collection de 7 vis volant moteur
                                                                          The official Renault Sport set of 7 flywheel bolts (ref. 7711150582 ) is a high-performance fastening kit, essential for competition vehicles such as Renault Twingo R1 , R2 , Clio 2 X65 Cup , Clio R3 , Clio 3 X85 Cup , and Megane N4 . Designed for secure and...
                                                                          €31.26Price
                                                                          Collection de 7 vis volant moteur
                                                                              The official Renault Sport set of 7 flywheel bolts (ref. 7711150582 ) is a high-performance fastening kit, essential for competition vehicles such as Renault Twingo R1 , R2 , Clio 2 X65 Cup , Clio R3 , Clio 3 X85 Cup , and Megane N4 . Designed for secure and...
                                                                              €31.26Price
                                                                              En Stock
                                                                              €2.52 Price
                                                                              En Stock
                                                                              €2.52 Price
                                                                              Ecrou H embase M6x100 Twingo 2 RS
                                                                                  Ecrou H embase M6x100 Twingo 2 RS Ecrou servant à la fixation du levier de frein à main, Connecteurs de batterie, Fixation boitier electronique Référence: 7703033159-7703033205
                                                                                  €2.52Price
                                                                                  Ecrou H embase M6x100 Twingo 2 RS
                                                                                      Ecrou H embase M6x100 Twingo 2 RS Ecrou servant à la fixation du levier de frein à main, Connecteurs de batterie, Fixation boitier electronique Référence: 7703033159-7703033205
                                                                                      €2.52Price
                                                                                      En Stock
                                                                                      €2.35 Price
                                                                                      En Stock
                                                                                      €2.35 Price
                                                                                      Vis longue fixation pompe à huile Twingo 2 RS
                                                                                          Vis longue fixation pompe à huile Twingo 2 RS Référence: 7703002873-7703102107
                                                                                          €2.35Price
                                                                                          Vis longue fixation pompe à huile Twingo 2 RS
                                                                                              Vis longue fixation pompe à huile Twingo 2 RS Référence: 7703002873-7703102107
                                                                                              €2.35Price
                                                                                              En Stock
                                                                                              €2.35 Price
                                                                                              En Stock
                                                                                              €2.35 Price
                                                                                              Vis courte fixation pompe à huile Twingo 2 RSVis courte fixation pompe à huile Twingo 2 RS
                                                                                                  Vis fixation pompe à huile Twingo 2 RS Référence: 7703002771
                                                                                                  €2.35Price
                                                                                                  Vis courte fixation pompe à huile Twingo 2 RSVis courte fixation pompe à huile Twingo 2 RS
                                                                                                      Vis fixation pompe à huile Twingo 2 RS Référence: 7703002771
                                                                                                      €2.35Price
                                                                                                      Bague fendue épaulée fixation axe alternateur Twingo 2 RSBague fendue épaulée fixation axe alternateur Twingo 2 RS
                                                                                                          Bague fendue épaulée fixation axe alternateur Twingo 2 RS Référence: 8200581348
                                                                                                          €3.59Price
                                                                                                          Bague fendue épaulée fixation axe alternateur Twingo 2 RSBague fendue épaulée fixation axe alternateur Twingo 2 RS
                                                                                                              Bague fendue épaulée fixation axe alternateur Twingo 2 RS Référence: 8200581348
                                                                                                              €3.59Price
                                                                                                              En Stock
                                                                                                              €197.46 Price
                                                                                                              En Stock
                                                                                                              €197.46 Price
                                                                                                              Carter Huile Twingo RS, R1 et R2Renault Twingo 2 RS / R1 / R2 Oil Pan (Genuine)
                                                                                                                  Genuine Renault Oil Pan (Ref: 111112011R) for Twingo 2 RS / R1 / R2 : Protect the heart of your engine. A damaged oil pan can lead to critical oil leaks. Discover the associated oil pan gasket and other products at the bottom of the page.
                                                                                                                  €197.46Price
                                                                                                                  Carter Huile Twingo RS, R1 et R2Renault Twingo 2 RS / R1 / R2 Oil Pan (Genuine)
                                                                                                                      Genuine Renault Oil Pan (Ref: 111112011R) for Twingo 2 RS / R1 / R2 : Protect the heart of your engine. A damaged oil pan can lead to critical oil leaks. Discover the associated oil pan gasket and other products at the bottom of the page.
                                                                                                                      €197.46Price
                                                                                                                      En Stock
                                                                                                                      €0.70 Price
                                                                                                                      En Stock
                                                                                                                      €0.70 Price
                                                                                                                      Vis fixation carter huile longue Twingo 2 RSVis fixation carter huile longue Twingo 2 RS
                                                                                                                          Vis fixation carter huile longue Twingo 2 RS Référence: 8200635080
                                                                                                                          €0.70Price
                                                                                                                          Vis fixation carter huile longue Twingo 2 RSVis fixation carter huile longue Twingo 2 RS
                                                                                                                              Vis fixation carter huile longue Twingo 2 RS Référence: 8200635080
                                                                                                                              €0.70Price
                                                                                                                              En Stock
                                                                                                                              €0.70 Price
                                                                                                                              En Stock
                                                                                                                              €0.70 Price
                                                                                                                              Vis fixation carter huile courte Twingo 2 RS
                                                                                                                                  Short Oil Sump Mounting Bolt – Renault Twingo 2 RS The short oil sump mounting bolt, reference 8200635079 , is a fastening component designed for the oil sump assembly of the Renault Twingo 2...
                                                                                                                                  €0.70Price
                                                                                                                                  Vis fixation carter huile courte Twingo 2 RS
                                                                                                                                      Short Oil Sump Mounting Bolt – Renault Twingo 2 RS The short oil sump mounting bolt, reference 8200635079 , is a fastening component designed for the oil sump assembly of the Renault Twingo 2...
                                                                                                                                      €0.70Price
                                                                                                                                      En Stock
                                                                                                                                      €1.52 Price
                                                                                                                                      En Stock
                                                                                                                                      €1.52 Price
                                                                                                                                      Vis fixation plénum sur collecteur Twingo 2 RS
                                                                                                                                          Vis fixation plénum sur collecteur Twingo 2 RS Vis H embase M6-28 CL:8.8 Référence: 7703002662-7703002559-7707002022
                                                                                                                                          €1.52Price
                                                                                                                                          Vis fixation plénum sur collecteur Twingo 2 RS
                                                                                                                                              Vis fixation plénum sur collecteur Twingo 2 RS Vis H embase M6-28 CL:8.8 Référence: 7703002662-7703002559-7707002022
                                                                                                                                              €1.52Price
                                                                                                                                              En Stock
                                                                                                                                              €1.52 Price
                                                                                                                                              En Stock
                                                                                                                                              €1.52 Price
                                                                                                                                              Vis H embase M6-19 CL:8.8Vis H embase M6-19 CL:8.8
                                                                                                                                                  Vis H embase M6-19 CL:8.8 Pour fixation guide jauge (par exemple) Référence: 7703002659-7703002660-7703008215-681988703R
                                                                                                                                                  €1.52Price
                                                                                                                                                  Vis H embase M6-19 CL:8.8Vis H embase M6-19 CL:8.8
                                                                                                                                                      Vis H embase M6-19 CL:8.8 Pour fixation guide jauge (par exemple) Référence: 7703002659-7703002660-7703008215-681988703R
                                                                                                                                                      €1.52Price
                                                                                                                                                      Demi-coussinet sup. ergoté / rainuré Clio R3 MAX (prix unitaire)Demi-coussinet sup. ergoté / rainuré Clio R3 MAX (prix unitaire)
                                                                                                                                                          Demi-coussinet sup. ergoté / rainuré Clio R3 MAX (prix unitaire) La photo représente 5 coussinets mais le prix est unitaire
                                                                                                                                                          €79.93Price
                                                                                                                                                          Demi-coussinet sup. ergoté / rainuré Clio R3 MAX (prix unitaire)Demi-coussinet sup. ergoté / rainuré Clio R3 MAX (prix unitaire)
                                                                                                                                                              Demi-coussinet sup. ergoté / rainuré Clio R3 MAX (prix unitaire) La photo représente 5 coussinets mais le prix est unitaire
                                                                                                                                                              €79.93Price
                                                                                                                                                              En Stock
                                                                                                                                                              €31.04 Price
                                                                                                                                                              En Stock
                                                                                                                                                              €31.04 Price
                                                                                                                                                              Soupape d'admission forgéeForged Intake Valve
                                                                                                                                                                  Forged Intake Valve – 28337-70856 The forged intake valve 28337-70856 is an engine component designed to control the entry of air, or the air-fuel mixture, into the combustion chamber. It...
                                                                                                                                                                  €31.04Price
                                                                                                                                                                  Soupape d'admission forgéeForged Intake Valve
                                                                                                                                                                      Forged Intake Valve – 28337-70856 The forged intake valve 28337-70856 is an engine component designed to control the entry of air, or the air-fuel mixture, into the combustion chamber. It...
                                                                                                                                                                      €31.04Price
                                                                                                                                                                      En Stock
                                                                                                                                                                      €2.82 Price
                                                                                                                                                                      En Stock
                                                                                                                                                                      €2.82 Price
                                                                                                                                                                      Genuine Renault 20.5mm Core Plug - Ref 7703075147Genuine Renault 20.5mm Core Plug - Ref 7703075147
                                                                                                                                                                          Ensure the perfect sealing and protection of your engine block with this genuine Renault core plug (freeze plug) with a 20.5mm diameter . This authentic part is essential during any engine rebuild to prevent coolant leaks. Manufacturer reference: 7703075147 . Precise 20.5mm...
                                                                                                                                                                          €2.82Price
                                                                                                                                                                          Genuine Renault 20.5mm Core Plug - Ref 7703075147Genuine Renault 20.5mm Core Plug - Ref 7703075147
                                                                                                                                                                              Ensure the perfect sealing and protection of your engine block with this genuine Renault core plug (freeze plug) with a 20.5mm diameter . This authentic part is essential during any engine rebuild to prevent coolant leaks. Manufacturer reference: 7703075147 . Precise 20.5mm...
                                                                                                                                                                              €2.82Price