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 David V (MANLIUS, NY) Reviewed for a 2000 Jeep Grand Cherokee —4/17/2018 2:37 AM
Flowmaster mufflers have always been quality, but most often more than I wanted to spend. When I finally bit the bullet and bought one, it exceeded my expectations. It has a nice deep rumble that is not overly loud or offensive but about as loud as I want it to be. Sounds perfect for my straight 6 cylinder jeep.
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