Ok im hoping someone can help me out(as title says) I have a 05 evo 8 and im running autronic ecu in it. I need help with trying to get it through emissions i bought the car with it and dont have the stock ecu. so im no im going to need that, the mass airflow sensor. what else am i going to have to get to get it to run off a stock ecu. I guess im just going to do a easy tune on it just to get it go through emissions and then put my autronic back in it. how hard is it to go back and forth. Thanks need help asap!