04-05 Duramax LLY High Flow Turbo Mouthpiece Shirts 5" Bar and Plate Core

5" Bar and Plate Core Design: The use of the bar and plate core design allows for greater airflow and increased heat dissipation over the much smaller tube and fin design used by the OEM

1 - Injection Pump Harness

Fuel filter

Built-in safety backdowns automatically protect your engine and transmission under extreme conditions

Through its exclusive

04-05 Duramax LLY High Flow Turbo Mouthpiece Shirts 5" Bar and Plate CoreFeatures: Increasing air flow 80% Smooth unrestricted flow designed Improves throttle response Lower EGTS keeping your engine running at cooler temperatures Increases performance 25hp and 57lbs x ft. Torque Powder coated black body CNC machined edges Looks great under the hood This is the best upgraded you can do to your LLY *NOT LEGAL IN CALIFORNIA