If you've owned stacks of any kind, you're well aware of one of the drawbacks, rain! If you leave your stack(s) uncovered and a little storm comes through, the next time you fire up the truck, you get a nice plume of soot that covers your truck. In the past, your option was to toss some coffee cans on that rattle around are just an eye sore. Fleece Performance has solved this issue with their custom fit hood stack covers. These are available in 4", 5", and 6" diameter, as well as in a straight or mitre cut design and feature an integrated clamp for a secure fit.