I know Autometer makes one that mounts on the steering column clam shell, but I haven't seen one in person, so I can't attest to the fit and finish of the part. For my personal street car, I decided to make my own by modifying the stock CD holder (who uses CD's anymore anyway?). I basically cut the guts out of the thing, leaving just enough material for a factory fit. Then I cut out a piece of sheet aluminum with the correct shape and holes for two gauges. Bonded the aluminum to the plastic using some 3M panel bonding adhesive (the stuff Corvettes are glued together with) and painted the finished part with a quality satin black trim coat. What you end up with is a gauge panel that pushed into the OEM DIN pod just like a factory piece
