WCFAB 2001-2004 LB7 Duramax 4" Intake Kit with Air Box Powdercoating:Brizzle Blue (-BRZ) and valves for manual inflation

and valves for manual inflation

you've possibly overlooked the restrictive factory downpipe on your rig

** This feature is key when maintaining a smooth ride and durability

This kit is for use with factory exhaust manifolds

WCFAB 2001-2004 LB7 Duramax 4" Intake Kit with Air Box Powdercoating:Brizzle Blue (-BRZ) and valves for manual inflationPowdercoat colors can be found here! WCFab 2001 2004 GM LB7 6. 6L Duram" Intake Kit with Air Box. This high flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic factory parts on your diesel for improved engine performance. All new design significantly increases air flow to your turbo producing improved horsepower and torque, quicker throttle response, and cooler intake temperatures by