Member Credit: Nealoc187

The factory gauges are about 1.25-1.5 inches deep – the circuit board sits that far back from the black plastic surface on which the gauges are mounted (the circuit board mounts on the back of the white plastic part of the “sandwich”, probably more than 1.5″ away from the black surface on which the gauges are mounted – no need to modify it in any way) Once you remove the factory gauge there is tons of room (depth) to mount a gauge in it’s place, The PLX gauge only takes up about 3/8 inch of depth.