I bought the cold air box & snorkel kit many years ago; maybe 2008 I think shortly after I bought the truck with almost 80K miles...I actually was on a road trip and stopped in at the Volant shop for the install too. I was shown around the facility, goofed off with the crew a little, and before I knew it, I had a Volant shirt that I still wear today. Well, it's now Jan 2021, and I'm finally having to replace the filter. I'm thinking that's pretty damn good. Thanks, great product.