I do not know what type of mufflers they are, but they look like an insulated type, not a flowthrough like a flowmaster. They actaually sound pretty good. If I remember I will crawl under there and look to see if there is a brand on them. As for the no MAF, apparently the 97 F350 came without MAF for some reason, which is really weird since my 96 300 was MAF. I was a little surprised to that it was MAF free, but I am not going to argue.

Ya, I do feel a little bad about leaving the old 300 behind, but when I drive it, I remember why. The 300 was a great motor. I hope this one will be as reliable, but I am not hard on stuff cause that costs $$$$. Except for the rubber I tore off the tire the other day just cause I could