Is this a serious thread? You cannot mod a Auto RSX for power in all reality unless you are SUPER well versed in electronics and fabrication and have a crap load of money. Firstly, the ECU... Good luck piggybacking Kpro onto the Auto-ECU. You are talking a LOT of money to make this happen properly and have the trans run right. Secondly, the trans CANNOT hold even 300whp. You would be lucky to hold 250whp in the RSX auto trans. Only a couple of people have actually successfully modded the Auto, and all gave up on them pretty quickly afterward as they were a major hassle. Learn to drive stick shift bro. If you want an automatic, keep it for your daily commute and buy a manual car to mod. That or buy a GTI or something that actually has an automatic aftermarket. The Auto RSX has ZERO aftermarket for power and ECU modification. The best you get it a Reflash.