Reviewed By Alex W (East Orange, NJ) Reviewed for a 2001 Oldsmobile Alero —11/15/2012 12:23 PM
had it professionally installed sound better than i could image dont know about fuel eco cause i gotta heavy foot but couldn't be happier
Reviewed By Sam B (albany, IN) Reviewed for a 2003 Chevy C/K 3500 —3/17/2017 1:01 PM
I have a lb7 duramax with a 4 to 5 inch straight pipe. It was ungodly loud especially on the interstate. This muffler doesn't make to much difference at low rpm (which it still quiets it down a bit) but it makes a world of difference once you give it throttle. Especially at 2k rpm when it starts to drone out. The truck still sounds awesome but not nearly as loud! It was exactly what I wanted!!