Quote Originally Posted by iNsTuN nOoDoH
I'm actually already running a 3" Thermal. Just wondering the tone of this exhaust and if there are any drastic power differences between the 2.
There's no worry about the tone, it's one of the best sounding muffler I've herd, very pleasing.

About power, the WS may result in a small loss of HP since it's not a straight through design, but it shouldn't be significant (couple HP at most).

If you're NA, it may gain back couple tq as a trade off. I haven't own one. But heard many WS system and they all sound nice, even on the crappiest car