I know some of us hear have done boost guages, myself included, very easy. Find a place to mount the guages that suites you, on the dash, under the dash, in the middle of you radio councel (one of the din's), or on a pilar pod. Just goto autometer, they have several suggestions of products that may help you decided where you want to mount them. If you have a mbc, those are very simple to install; however a ebc is a little more tricky doto the wiring. Cool to have you here, hay if you or anyone hasn't sugned up for mazda rev it up, do so now!!