now i'm using Greedy spec 2 boost controler with my Sti 05.. at first i wasn't gonna put this boost controler, but my friend at the Mod. shop told me to put them with the Dp+ cat back , intake at the same time.. so i did.. before, i used to run up to 20 psi which is i believe that is totally too much boost for my car, so i took it back to the shop to re set up again and it seem to be ok (runnin at 17-18 psi) but the other day i was running hard on the free way and i checked my last boost and it said 20 ,, so anyone have this boost controler please let me know what is the best hi, lo gain i should put into this controler to make this safe for my engine.. thanks