WCFAB 2004.5-2005 LLY Duramax 4" Intake Kit with Air Box Powdercoating:Bengal Red (-BR) diameter 1-piece Driver (Hot) Side

diameter 1-piece Driver (Hot) Side and 3

We recommend genuine Bosch feed tubes with every injector install

Turbo Intake Horn which removes restrictions in the OEM setup to improve turbo spool and top end power

The intake horn is over an inch larger than the OEM diameter and we experienced a 25HP Gain with our 3

then machine formed and precision welded for ultimate strength

WCFAB 2004.5-2005 LLY Duramax 4" Intake Kit with Air Box Powdercoating:Bengal Red (-BR) diameter 1-piece Driver (Hot) SidePowdercoat colors can be found here! WCFab 2004. 5 2005 LLY 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