I'm looking to upgrade my muffler and as the title suggests, I've been looking at magnflow and flowmaster 40. I currently drive a 2002 4.7 V8 HO Overland, and over time I'll be upgrading it, it's my baby, lol.
It seems to me that most folks buy the flowmaster mainly for its sound? I've read on various forums other than jeep, and folks seem pretty partial to the flowmasters!
Now there's a catch! I'm legally deaf, so therefore sound is of no concern for me!
So to ask, is there much difference in terms of power, gas mileage, and performance between the two said mufflers based on your experiences/observations?