S4 Saloon

The APR Intake system dramatically out performs the factory intake system and improves upon the closed box design. As performance increases, so does the importance of a high-flow high-quality intake...

APR Supercharger Drive Pulley - 3.0TFSIAPR’s Supercharger Drive Pulley Upgrade decreases the diameter of the factory pulley from ~63.25mm to 57.75mm, which in turn spins the supercharger ~9.5%...

APR Ultracharger System - 3.0TFSIThe APR Ultracharger System dramatically increases horsepower and torque, and maximises the power potential of the 3.0 TFSI. It removes a massive pre-supercharger...

The ECS billet aluminum boost tap adds 2 possible vacuum ports for your 3.0T boost specific needs. This boost tap was designed and engineered in-house specifically for the 3.0T. Built to simply...

Upgrade your exterior styling with the ECS Tuning Carbon Fiber Trunk Spoiler. This trunk spoiler was engineered in-house and designed to follow the curves and lines of the body to offer a...

Raise the level of style on your Pre-facelift B8 A4 S-Line/S4 with the ECS Tuning carbon fiber front lip spoiler. This quality piece was engineered and designed in-house to fit directly to your...

Raise the level of style on your pre-facelift B8 S4 or A4 S-Line with the ECS Tuning Carbon Fiber Grille Accent Set. This quality addition was engineered and designed in-house to fit directly to...

Upgrade your exterior styling with the ECS Tuning Carbon Fiber Rear Diffuser. This diffuser was engineered and designed in-house to add a more aggressive appearance to the rear of your vehicle that...

Raise the level of style on your pre-facelift B8 S4 or A4 S-Line with the ECS Tuning Gloss Black Grille Accent Set. This quality addition was engineered and designed in-house to fit directly to...

ECS Tuning Gloss Black Rear Window Spoiler - A4/S4 B8/B8.5 Upgrade your exterior styling with the ECS Tuning Gloss Black Rear Window Spoiler. This window spoiler was engineered in-house and designed...

Central Rear Splitter Audi S4/ A4 S-line B8 Sedan (2008-2011) FITS:Audi S4 B8 Sedan (2008-2011)Audi A4 B8 S-Line Sedan (2008-2011)COMPLETE SET CONTAINS:-> Rear Diffuser-> Fitting manual

Rear Side Splitters Audi S4 / A4 S-Line B8 Sedan FITS ONLY:Audi S4 B8  Sedan (2008-2011) Audi A4 S-Line B8 Sedan (2008-2011) COMPLETE SET CONTAINS:-> Rear Side Splitters (Left + Right)-> Fitting...