Im currently on revo stage 2+. Its a great map, but as with all K03 cars, they really struggle to get the boost at the top end. They are better in winter tho!
My current setup uses the THS intercooler, Blueflame decat turbo back, Backdraft Intake kit and APR fuel pump. We (BDM) dont do the KMD pump any more mainly due to their terrible support and service. Alot of people use the Autotech (when you can get hold of them), but then ive seen failures of those as well as the KMD pumps. I will only use and fit the APR pumps now and there support is 2nd to none. They are expensive tho. I expect the power to be around 260 up to 280 on a good cold day.
K04 is on the cards, but not for a few months yet. I like the drivability, response and power from the K04.
Alex