Just wanted to let you wrx guys know that if you are starting to go past sti levels of power that this is one of the best mods I have done. I was getting so much engine movement that it was hitting on my tmic and giving me a false cel. You will get a little more vibration in the stearing wheel, but nothing unbearable. I installed Group N (sti) engine, tranny, and pitch-stop mounts. This gives the car a much more percise feel, and and controls while turning are not upset by the ebgine flopping around.