3"down pipe 4"the rest of the way with muffler, its a diamondeye off of ebay $289
sounds like big block chevy!:jump:

what issues, if any, is there with doing a headers back exhause on a non turbo 6.2, straight piped 4"

Im designing a remote mount twin turbo system for my dads suburban, from what I've read you dont need a muffler, but we will see.

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Not from what I've heard. Stans Headers makes 6.2 headers. They have 3" collectors.

Ill have to check them out, ive got stock headers, and they just upset me everytime im under the truck.... dinky little things look gay:bat:

Heres the link.

Headers for, Chevy, Corvette, Olds, Buick, Camaro, Firebird high performance automotive and marine engines.