MBRP 4" ID to 5" ID Exhaust Reducer UA2004 DDP CP4-422 a stock Allison will see

a stock Allison will see probably see a 1:1 ratio of line pressure to apply pressure

were designed to make vehicle assembly easier

Carli didn’t stop at just bolting on some Kings

provides the same protection and cooling as the black version

The factory CP3 injection pump nut cover is construed of plastic and is known to strip out giving you a major headache when servicing your injection pump

MBRP 4" ID to 5" ID Exhaust Reducer UA2004 DDP CP4-422 a stock Allison will seeThis reducer is used in conjunction with an MBRP Smokers Bed Kit or any other 4" bed kit that is being mated to a stack with a 5", such as the MBRP 7" and 8" stack selection.