Dave, my car is an 04 WRX daily driver, curently at stage 2 w/APv1(UP/DP+axleback, lightened pulley). I'm considering a protune, and got a couple of questions:
would you advise to add anything to my current set up to maximize benefits of a protune (walbro fuel pump, or 06 WRX topfeed injectors?)
I also consider STI TMIC. It seems to cause noticable lag with stage 2 OTS map, will you be able to tune so that lag is not an issue?
what power/torque gains should be expected after protune as compared to Cobb OTS stage2 map?
Thanks for you input.