The LB7 GM Duramax Single PhatShaft Turbo Kit is specifically designed to dramatically increase performance and reliability to your 2001-2004 Duramax engine. The PhatShaft turbo kit utilizes one of our legendary Silver Series Turbos and is offered in 3 different sizes depending on your goals and uses for the engine. Just like all of our Silver Series Turbos they come standard with a 14 cm exhaust housing in which we modify the angle of the exhaust nozzle, maximize the waste gate ports, and enlarge the waste gate chamber for full waste gate travel, dual grooved high performance bearings and an adjustable boost elbow.
