When I first got into the modding world I had wrx's and STI's and had 4 different subie shops screw those up and paid a small fortune for it. When I got my EVO IX I waited 3 years before I modded her and did my research and one name always came up....... RRE
RRE did all the work on my IX from bolt on to tuning to clutches and their work is top notch and the only guys I trust. Im going to have them work on my new STI as well.
Road Race Engineering