PPEI Engine Tuning For 2011-2016 GM 6.6L LML Duramax Transmission Fluid Bypass Valve 2007-2018 Chevrolet/GMC Silverado/Sierra 1500 (With

2007-2018 Chevrolet/GMC Silverado/Sierra 1500 (With OE Cast Steel Control Arms)

or fuel tank sump

8 quarts of MOPAR ATF+4 Fluid

Replace that restrictive factory downPipe

PPEI Engine Tuning For 2011-2016 GM 6.6L LML Duramax Transmission Fluid Bypass Valve 2007-2018 Chevrolet/GMC Silverado/Sierra 1500 (WithPPEI's LML tuning provides 150+ HP gains over stock, towing effortlessly, and increases acceleration drastically. Tuning engineered for optimal efficiency. Tuning is intended to increase the horsepower (hp) and torque (tq) the engine can produce. OEM manufacturers, like GM, show vehicle hp and tq based on the amount of power produced by the engine, at the engine, which is 397 hp and 765 lb ft of torque. PPEI, unlike the OEM, measures hp and tq at the