2004.5 - 2005 Chevy Silverado Duramax EGR Cooler Delete Kit 6.6L LBZ Coaler Systems EGR Valve Delete Kit Fits: Duramax Diesel "LLY" 6.6L 400CID OHV V8 Chevy SIlverado (May) 2004-2005 GMC Sierra (May) 2004-2005 With this kit you can increase your throttle response, reduce turbo lag and even increase fuel economy! Includes: 2x Block-Off Plates with Rubber Seals 2x Hose Continue Reading