i have a 1992 300zx tt and notice the ECU was upgraded by z1 motorsport...i wanna swap out that ECU and put back a stock ecu because i want my car back stock...can a JDM ecu work on my car or does it has to be a USDM ecu..anyone interested in trading me for a 1992 stock tt manual ecu for my upgraded z1 ecu ..let me know also..i dont care if i lose..i just want back a stock ecu in this car..