All Livorsi gauges are encased in all non-ferrous hardware. Mega & Race gauges are available in Standard or Monster sizes. Have freedom with this new series, mix and match 2-1/16" with 2-5/8" and 3-3/8" or 4-5/8" speedos and tachs! Create the look you want, with the gauges you want.Overall gauge width is 2-3/8" and dash cutout size is 2-1/16".