Originally Posted by Apex Chase
No. The tone will vary slightly but the volume will not be much different due to the headers themselves. High flow cats will be a little quieter than cat deletes but the cat back will have the biggest impact on the overall volume.
I was wondering if the Header/Fast Cat combo with Stock exhaust would be quieter than an cat back exhaust like Borlas attack or one of the louder cat back systems, your comment about the cat back has the biggest volume impact made me think about this. I have heard the header/fast cat set up with stock exhaust and its sounds pretty nice outside, my concern is the interior volume. Any info you might have Apex would be appreciated.