Re: Quiet -- stock like sound level -- turbo back exhaust
I also had the original Tanabe full Ti medalion catback on my05. Was super loud without the suppressor for being a single exit catback.
On my07, I went with a Maddad whisper turbo-back exhaust. Catted DP with divorced wastegate. This was by far the quietest turbo-back exhaust ever. 0 drone, and it was quieter than the catback i'm running now on my19. GST in Hayward CA pro-tuned was 273whp 293wtq with a pro tune on their mustang dyno.
On my audi s4 (4.2 V8) , I had purchased a Milltek H-pipe non-res catback. It was disappointing because it was too quiet. Swapped that out for a Fast Intentions x-pipe non res and was very happy. Brought the volume up and sounded better being a x-pipe.
Maddad made the quietest tbe IMO.
2019 CWP STi - Only mod is a 3" Cobb Titanium cat back exhaust
Gone but not forgotten
2004 Audi S4
2005 CGM STi
2007 WRB STi