95moburb
Newbie
I've been looking everywhere for headers for my 88 454 k3500 with a th400. Just trying to see my options I have found so many different things some say long tubes will work some say only run Shorty's. I just want aomethins that flows better then the stock manifolds. And what year headers will work on it. Also which is going to be better single 3in or duel 2.5s probably going to run either a straight through bullet type muffler are a flowmaster super 10 and also why the hell do 454 headers cost so damn much. Thanks for any help I love this forum it has helped me out so much this truck is my 4th gmt400 but my first big block.
