My $50 exhaust. 2.5" down pipe, 3" high flow cat, 2.5" cut out. Sounds good, ill still eventually do a muffler, but im trying to do total budget on this car. next gonna try to find some cheap wheels, and coil overs.
So current mods:
Exhaust
Air Intake
Chip
plus pretty much all the regular b5 a4 maintenance.

 

Not bad. How does it sound?

 

with the cut out open, sounds like total butt lol. will be fun when i dont have the mustang and want to annoy hondas tho. as a whole, its not very much louder then stock. turbo spools very loud tho

 

Not too shabby for $50 lol

 

yeah im pretty happy. in a week or two, its all coming back out. going to gut the cat. i keep getting a below threshold code for the cat, so if i gotta use spacers, im gutting it. and im going to swap in a new magnaflow style muffler.

and for what its worth. the piece my new "downpipe" replaced under the front of the car, fits right in where the resonator goes to delete the resonator lol