R rtjohnson55 Guest Jan 13, 2009 #1 I have an 01 chevrolet 2500hd with a Magnaflow dual-in dual-out muffler. I am thinking of installing headers this week if the results are worth it. Anyone have any imput?
I have an 01 chevrolet 2500hd with a Magnaflow dual-in dual-out muffler. I am thinking of installing headers this week if the results are worth it. Anyone have any imput?
