I have run nothing but Fentons on my truck. I've always been told that they were more quiet than tube headers, as far as engine noise in the cab is concerned. I suppose it's because they are cast iron like the stock exhaust manifold.
"Truckin' Around .......... Since 1937!" My name is Joe and I am addicted to Classic Country Music. I just can't hep myself. Operators are standing by to take your calls! Now cruising in the Passing Lane