PPE Diesel 128041012 Pressure Calibration Kit (800HP+) GM 2011-2016 Allison 1000 and 2000 Series Zippys This flex plate is given

This flex plate is given a Black Oxide coating for corrosion resistance and to prevents hydrogen embrittlement that can cause cracking

three-inch vacuum cylinder (earlier models)

Banks' Precision Port Alignment System allows the manifold to expand and contract without shrouding ports

pre-filter and/or the filter head

Banks Techni-Cooler sports a 25 percent increase in volume

PPE Diesel 128041012 Pressure Calibration Kit (800HP+) GM 2011-2016 Allison 1000 and 2000 Series Zippys This flex plate is givenThis Kit is recommended for performance enhanced trucks. Designed to improve shift firmness with variable spring selections to achieve your desired results. The PPE Pressure Calibration Kit sets minimum pressure and boosted pressure levels (adjustable) that are a match for 800HP+ applications.