McGaughy's 4" Lift Kit 24-26 GM 6.6L L5P Duramax 2500 AT4X NFB-EXC07QC-TX a leak here can drastically

a leak here can drastically reduce the turbos ability to make boost and really lower your fuel economy

The Co Pilot for the 06-07 Allison 1000 makes it possible to transfer increased power levels over stock developed by a modified engine to the rear wheels without causing the dreaded transmission slip and condition that plagues the Allison transmission

allowing contaminated air to enter into the system as well as one heck of a messy oil leak

Even from the factory

This kit is also available either with or without a muffler for those wanting a complete unrestricted sound and flow

McGaughy's 4" Lift Kit 24-26 GM 6.6L L5P Duramax 2500 AT4X NFB-EXC07QC-TX a leak here can drasticallyNow, a lift kit is designed specifically for your AT4X model! You bought your truck specifically for its off road capable package but you're looking to give it that extra "Ummph!" Now you can use McGaughy's 4" Lift Kit for GM 2500 AT4X models! Specifically designed to work with the factory Multimatic DSSV Dampeners, this lift kit can turn an already amazing truck into one, even more, prepared for whatever the road or trail throws at it. While the AT4X