Hi, I recently bought a 2005 impreza 1.6l with an ihi rhb5 turbo (about 150 hp) and I noticed that the real boost starts over 3800-4000 rpm (100+ octane gasoline). The thing is that I dont want (for now...) more power I just want a little bit more torque at lower rpm (lets say 1000 rpm less). I chec...