ok here is the deal.. I have a 2004 wrx with 3in turbo back, gt spec headers, base stage 2 tune, and bov. It just started to get colder here in MN, i would say like in the low 60's high 50's, and just like last year i have fuel cut under wot. It is almost always at 4,500 rpm, but when it is warm in the summer my car is fine. I have changed the fuel filter and checked for air leaks, but still the same thing happens. I'm still running stock boost so i dont see how i could be maxing out the fuel system... any input would be awesome!