Ok now the last part I need for my car is the ECU. Ive asked for one before but never did buy one and now I cant find any N370. Ive looked around and saw somethings that worked for others but can I really count on it? I read that one guy went through so many N374 and none worked at all. So he finally bought a N370 and it worked perfectly. Now as I can remember. He said that later on he got the knight sport chip and installed it in one of the N374 and the car ran like it was suppose to. Now should I try to go that route too cause Im using the USDM harness?