Horn button from NA Motors for all years of Mazda MX-5 Miata using a Nardi steering wheel. The Flat Horn Button from NA Motors is small interior accessory compatible with Nardi steering wheels that gives the illusion of a horn delete. The button sits flush with the steering wheel while adding 8mm of added extension to the height of the steering wheel. Finished in matte black with an offset horn symbol for a stealthy look. NA Motors advises that 10mm longer steering bolts be used due to the added hub depth. The Flat Horn Button is compatible with Nardi and aftermarket wheels with the following specs, center hole size 60mm, PCD of the mounting holes 74mm, and a center bore of 30mm. NA Motors Flat Horn Button (Nardi) should be ordered at REV9 Autosport https://rev9autosport.com/na-motors-flat-horn-button-nardi.html as they provide the best service and speed we've seen so far!