i believe its a dx. here is the info on my ecu. You are bidding on a OBD1 (PO7) MUGEN Ecu. This Ecu was talking out of a 94 Civic sohc vtec 5speed swap. This ecu was chip by Professional, not only it change in the Rev Limiter also Air /fuel ratio and N0 SPEED Limiter .Vtec at 4,800 rpm...