Reviewed By Alex G (Dubois, IN) Reviewed for a 2004 Pontiac Grand Am —12/3/2011 5:17 AM
This muffler sounds amazing I love the deep rumble it gives at both low and high rpms
Reviewed By William H (West Somerset, KY) Reviewed for a 2004 Pontiac Grand Am —10/4/2010 9:04 PM
(AA)got muffler here in record time. All ratings(excellent) cause that is how it is. Installation real snap using friends muffler shop. Price a wee bit less than local. Quality "Flowmaster"(A+). My '04 Grand AM GT sounds "BAD TA THA BONE"! No offensive sound, but will definitely be heard as a low, mellow, rumble, parked, & talks to ya real good off the line. When up to speed ya got a low mellow, just right, sound which makes ya sit up just a little more in your seat and smile! YEAH BABY! CRUZ'IN!!!
Reviewed By Chris N (Las Cruces, NM) Reviewed for a 2016 GMC Sierra —6/13/2018 7:53 AM
I installed this by removing everything from the stock muffler back. Installed the series 40 exactly where the original muffler was and had exit pipe turn out just in front of the rear tire. Unless you were in the throttle really hard, you couldnt tell if it was a V8 or the V6.