ITEM NAME:Racing Boost Increase Valve Fit for Chevy GMC Duramax 6.6l Engine LB7 2001-2004 PPE Boost Increase Valve Fit for Chevy GMC Duramax 6.6l LB7 2001-2004 SPECIFICATIONS.(Compatible With: fit for Chevy Gmc Duramax 6.6l LB7 2001-2004. 10) High performance Boost Valve for your Chevy/GMC Duramax Diesel Engine. 7) Adjustable boost pressure above the standard setting. 12) Install the custom designed Boost Valve by simply splicing into the hose running between the turbo and the wastegate.
