Reviewed By Ian M (Sedgwick, KS) Reviewed for a 1999 Pontiac Firebird —7/10/2011 3:32 AM
Love the sound of my 40 series. I put it on my 99 Trans Am. Sounds great and turns heads. Love it.
Reviewed By John Y (Novi, MI) Reviewed for a 1968 Pontiac Firebird —8/15/2007 10:14 AM
These mufflers sound good outside of the car. They give the car a nice growl. I have a 1968 Firebird with a 400 engine. A little more resonance inside of the car than I expected. I am running 2 1/2" exhaust.
Reviewed By Eyrik A (Signal Mountain, TN) —4/24/2015 8:35 PM
I love this muffler! I don't exactly have the loud sound I wanted but I think that's due to other things rather than the muffler itself. I could use a new cat converter and new exhaust manifolds to pair with it. Overall I'm rather pleased and love what this has done for my truck.
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