Quick Ship SKU #: LFS-201058-Main Longhorn Fab Shop Air Intake Filter Indicator Plug 01-22 Duramax / 03-09 Cummins / 99-07 Powerstroke

You know that plastic gauge on your airbox that's supposed to tell you when your air filter is dirty? Yeah, that one that no one pays attention to yet every aftermarket airbox manufacturer still leaves provisions for you to reinstall. Well, if you're ready to get rid of that eyesore, check out this simple plug from Longhorn Fab Shop.