Finish the custom piping on your 2006-2007 Chevy/GMC 6.6L LLY/LBZ Duramax when you use the HD Clamps. Offering up to 12 degrees of angular, axial, and radial movement, these clamps will remain sealed. With the ability to handle temperatures up to 400 degrees Fahrenheit and aluminum construction, these units can handle the harshest conditions. XDP offers high-quality brands like Vibrant Performance and Mishimoto.