2004.5 - 2005 GM 6.6L LLY Duramax | Allison Transmission Tuning by PPEI OUTLANDER 850 and are encased in cast

and are encased in cast aluminum housing with a black powder coat finish and are rated at IP67 waterproof

That’s why we love portals—they put the gear reduction right in the hub

and roads just as easily

Unlocker - QTY 1

2004.5 - 2005 GM 6.6L LLY Duramax | Allison Transmission Tuning by PPEI OUTLANDER 850 and are encased in castExtend your transmission life and increase your fuel economy with PPEI Transmission tuning! A MUST for tuned trucks with additional torque. 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 turbochargers, ppei transmission tuning is a must to get the engine back into a rpm range to match the torque curve of