Quote Originally Posted by 07JeepXK View Post
Flowmaster 50 Series SUV muffler is the way to go on a 4.7 liter. Hands down....
I watched several Youtubes, of the 40, 44, and 50, and while the 50 was nice, I think for sound + performance, the 44 still tops it. Or I could be wrong.

Why the 50 over the 44, in your estimation?