Treasure Coast Miata is happy to announce the addition of the New 1.6L Mazda headers to its website. It's almost impossible to find a 1.6 Miata header that doesn't have a crack in it. They can be welded but it is just a matter of time when a new crack appears. Fix the issue once with this brand new from Mazda Header. The exhaust manifold uses a pair of steel gaskets for the header to engine gasket. You can add these optionally. Also optionally available is the header to down pipe gasket and the heat shield. All optional parts are genuine Mazda parts.