HotRodDave, thanks for the detailed explanation.. awesome


bboogieart, yup.. the plan has changed. I'm going with a 5.3L from a 2010 Chevy Silverado


So theres no way to run a pipe down the drivers side, the spare tire well is in the way, and to even run 2" pipe both down the pass side, up over the axle to the rear bumper w/ 2 mufflers under the floor pan there is just no way without it looking like a total hack job. I think a single 3" is the way to go for my application.