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 B (Raleigh, NC) Reviewed for a 2012 Chevy Silverado —6/29/2016 11:32 AM
Magnaflow mufflers in my opinion are the best choice in every category. Nice looking, superb quality, long lasting, and the perfect deep tone. No hollow beer can resonance like some of the competitors. I have used the large body Magnaflow muffler on numerous SUV's & truck's and have never been disappointed. The large body (12588) also eliminates the drone effect in newer vehicles with AFM cylinder drop. Great muffler...highly recommend!
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