2013 Audi S4 Exhaust Sound Modes Comparison (winding road driving)
Comparison between 2 Exhaust modes built in the 2013- S4 Dynamic = sound amplifier Open, channels in intake noise into the cabin Comfort = Closed = what all 2009-2012 s4 sounded like stock. exterior - estroil blue with stone/black nappa leather DCT Sport Diff on all seasons Beautiful driving and sounding car!!! ENJOY!
Audi S4 v Audi RS4. Does Supercharging Rule? - /CHRIS HARRIS ON CARS
Can REVO Technik make a raggedy old S4 match the gorgeous new RS4? Drag race to find out.