Audi S4 Downpipe Exhaust & Stage 2 ECU/TCU (Aggressive Sound)
36:19
Modifying an Audi S4 in 36 Minutes
32:26
S4 Gets Crazy Turbo Noise! Carbon Intake, Turbo Inlet, Strut Brace & More!
20:28
UNLOCK HORSEPOWER BY INSTALLING THIS COOLING SYSTEM ON YOUR SUPERCHARGED AUDI
21:45
Audi S4 B9 Catless Downpipe SOUNDS AMAZING! (Carbnlabs Catless Downpipe Install!)
27:25
Adding 151 HP to my Audi S4 w/ E85! Tuning, Fuel Pump Upgrade & Ethanol Sensor
17:39
THIS REAR MOUNT TURBO 730BHP V8 AUDI RS4 IS UNBELIEVABLY FAST!
37:52
Wild MK8 Golf R Turbo Noises & Launch Control w/ Intake & Stage 1 Tune Install
36:29