These mani cats are used on all Mk3, Mk3.5 and Mk3.75's from 2005-2015 (NC1, NC2 and NC3) Mazda MX5's. Used, but in good condition, is this manifold catalytic converter removed from a Mazda MX5. Over a decade of experience with the MX5 and we're still as passionate about them as you are!