Gazzo85

Trying to figure out if I should get Flowmaster Exhaust Systems (American Thunder Series - Cat Back Exhaust) or cherry bomb glasspack?
I drive an f150 FX4 2012

sportster07

Glasspacks are as loud as you can get while still having a muffler. They're also much cheaper. Buy two glasspacks, get custom duals made up and remove your cats and your truck will be straight pipe loud. Glasspacks make no real difference over no mufflers, a little but very, very little.

uzikaduzi

since flowmasters are chambered they add no performance (and in some cases decrease performance very slightly)... i have them but they are only for sound

KCCOFox

I try to avoid flowmasters

evan19281

Im not a big fan of flowmasters. but magnaflows have a nice sound, magnapack in particular.