Last year I planned purchasing stillen ECU, MAF, and Throttle Body; however, throttle body was back ordered. Yesterday, I found a throttle body for 200sx se-r on stillen website. I was wondering that 200 sx and g20 throttle bodies were same. I know that over bored throttle body won't give much hp gain but since my car is equipped with tuned ecu and maf. So I really want to make the modifications the way they are designed to do. My car is AT. In addition, has anyone tried RC engineering throttle body?