WCFAB 2004.5-2005 LLY Duramax 4" Intake Kit with Air Box GM 2017 Firestone has risen to be

Firestone has risen to be one of the leading manufacturers of commercial air springs

and brake effectiveness

These improvements are accomplished through application of Cognito's innovative

The IFP eliminates oil aeration allowing maximum performance from the factory-tuned precision valving

• Internally rated to over 2500°F direct heat

WCFAB 2004.5-2005 LLY Duramax 4" Intake Kit with Air Box GM 2017 Firestone has risen to bePowdercoat 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