2011 - 2015 GM 6.6L LML Duramax A50 | Allison Transmission Tuning by PPEI Textron Off Road thermally compensated

thermally compensated

The powerful Tornado wheel spins circles around the competition with its head-turning design

It’s perfect for racing conquering the outdoors exploring the sand dunes or just mudding it up with friends

Our GDP Portals raise the bar and break all the rules to give you a Polaris Ranger 1000 experience you’ll never forget

2011 - 2015 GM 6.6L LML Duramax A50 | Allison Transmission Tuning by PPEI Textron Off Road thermally compensatedExtend your transmission life and increase your fuel economy with PPEI Transmission tuning! A MUST for tuned trucks with additional torque. PPEI was the first to offer transmission tuning for these new allisons and we have not let off the throttle since! The refined shift points get rid of the low rpm Lazy feel these trucks have that force the driver to stab the throttle for a downshift not cool and a fuel economy killer! For vehicles with larger