Hey guys i have a k&n air filter that has a recharge kit that was used very little. i have the original box. and i also have a greddy boost gauge that needs the pressure sensor harni it has the electric harni. its a good gauge that lists for 180 bucks or so. i will let it go for 50 bucks the k&n i will sell for 20 bucks.. plus whatever shipping costs to your area.