diesels dont need back pressure from what ive read and seen. I cut my exhaust so i was running strait 4"for only about 4 feet under my truck. and my truck spooled up faster and was loud as hell, then when it did when i put my muffler delete pipe on. and youve seen people with hood stacks before.
__________________
2000 Ram 2500 Quad cab - 4x4 - long bed - SMARTY - Airdog 150 - S&B Intake - Quadzilla Commander + Fuel Pressure gauge - Muffler Delete - DTT valve body - Mag-Hytec deep trans & diff covers - Smoked Out...