Using this Duramax CCV Reroute Kit is a breeze. First, locate the existing crankcase exhaust system in your 2017 or later GM vehicle with an L5P 6.6L Duramax engine. Then, carefully install the provided hose to redirect the spent crankcase gas either to the atmosphere or a catch can. The installation is straightforward, so you don't need to be a pro to do it. When using the kit, make sure all connections are tight to prevent any gas leaks. Also, check the hose regularly for any signs of wear or damage. For maintenance, if you're using a catch can, empty it periodically to keep the system working well. That's all you need to know to get the most out of this great kit.