When we designed the MX5 conversion we built the sway bar mounts directly into the subframe. The mounts where adjusted to clear the engine accessories and to allow proper room for the upgraded radiator. The bar uses a series of custom bends to achieve this. 1-1/8 tubular double wall with two adjustment options. Bar ends are 1/4″ thick laser cut flanges, tig welded. Includes poly bushings and brackets.