Way too Loud, Vibrates cabin, cannot hear radio!!
Just had the local Chevy dealer install my flow master force II muffler cat back system that was supposed to be the quietest system Flow Master made for the C6 corvette. Surprise, surprise, it is a loud & cheap sounding exhaust. I should have known better, GM knows what systems work best on the LS3. I will have the Flow Master system removed and Trashed tomorrow, a big waste of money.