Buddy has SW gauges and they are JUNK!
Glow Shift is jap junk too, I have been down at Isspro when they gutted a set... Funny to say the least, also last I looked they didnt offer a boost gauge, just a boost/vac gauge...
Go to
DieselManor - Taking the Mystery out of Diesel Performance™ He has several kits from Isspro, Autometer, and diprocol starting at about 280-300 with EVERYTHING needed for install, when I say EVERYTHING I mean every connector, wire, bolt, everything but a drill and bits and tap...