MBRP Armor BLK 3" Downpipe / Turbo Direct Pipe 01-04 GM Duramax LB7 FOX-985-24-032 it adds a ton of

it adds a ton of functionality

360-degree radial flow air filter with 5-layers of progressive cotton composite media provides maximum flow

This system is available in two different filter media platforms

Axle Ratio

as the last three numbers are what typically change throughout the various engine changes

MBRP Armor BLK 3" Downpipe / Turbo Direct Pipe 01-04 GM Duramax LB7 FOX-985-24-032 it adds a ton ofThe factory turbo direct pipe on the 2001 2004 Duramax's is very restrictive. Unfortunately, due to the construction of the factory downpipe, none of the exhaust manufacturers include this piece with their full exhaust kits. MBRP announces the release of their turbo direct pipe that will bolt directly in place of the factory unit and give you a freer flowing exhaust. This piece comes powdercoated in black and heat wrapped to avoid any ambient heat