17-19 Duramax L5P Black Market Performance CAT Fuel Filter Upgrade Kit 5 Inch Inlet The Bully Dog GT 40420

The Bully Dog GT 40420 features the all new patent pending Driving Coach feature

The CS2 is compatible with the optional Edge Accessory System (EAS)

No surging

Huge Pro 5R Performance Air Filter:

With the addition of an H&S Dual High Pressure Fuel Kit

17-19 Duramax L5P Black Market Performance CAT Fuel Filter Upgrade Kit 5 Inch Inlet The Bully Dog GT 40420New Product Release!! Black Market Performance L5P Duramax Cat Fuel Filter Adapter, completely replaces the poorly designed restrictive factory fuel canister while adding better filtration, with a more affordable Cat fuel filter. Also Retains and reuses Factory Water in Fuel Sensor and Heater Kit Includes Cat Filter Adapter Cat Fuel Filter Quick Connect Fittings Install Bolts Install Instructions