It requires a harness to go from non 4 guage pack to 4 guage pack. If he includes the wiring harness that connects to the back of the gauges it should be fine.
2012 2SS 45th Anniversary/Auto/ TSP Headers, X-pipe, mids and Magnaflow Mufflers, C.A.I. Intake, RX Catchcan #2, Wideband O2, drl to fog light conversion, plastidipped bow ties, tuned by James Karger. North Texas Muscle Cars member.