you know where the h-pipe comes together and the pipe slides together?! well do i need to cover the little gap up? or if i leave it uncovered will it be louder if i uncover it? i got like a foil tape on it mow....lol!
well you dont want any leaks, the sound will drive you nuts. It will not help with the sound lol. Just cover it up with a wide metal plumbing clamp, they have them in lowes with the plumbing, that should work, then seal it with some high temp silicone. that should fix your problem. oh, and go with 410s if you are going to be NA and 373s if you are going FI.