Replace the intercooler and pipe boots on your 2006-2007 Chevy/GMC 6.6L LLY/LBZ Duramax with the Direct-Fit Hoses & Clamps. Many aftermarket boot kits feature a durable silicone construction for added durability and long term strength. The direct-fit hose and clamp kits are specially made to fit under the hood of your truck and fit in place of the factory components they are replacing. The factory boots in your intercooler and intake system are often made of inferior materials that degrade over time due to heat, oil, and other underhood conditions. A torn boot or failed clamp can cause boost leaks that can rob you of power. You can discover top-notch brands like AFE, BD-Power, and Mishimoto.