Mishimoto MMBK-DMAX-06BK Chevrolet/GMC 6.6L Duramax Factory-Fit Boot Kit, 2006-2010, Black Direct fit for the 20062010 Chevrolet/GMC 6.6L Duramax Five layers of 100% silicone for maximum durability and blowout prevention DuraCore technology provides resistance to heat, pressure, fuel, and oil Includes high-quality constant-tension T-bolt clamps Mishimoto Lifetime Warranty