I have to say I have ordered lots of parts for my car but the place that ever knew the most was Turbo XS!!! They knew more than I know and I thought I'd read every article and tech issue on the wrx ever! The people there were insanely helpful and knowledgable. I bought the Turbo XS RFL blow off valve which I have liked (except for the fact lately something messed up and I can´t hold boost right) and I highly recommend them to everyone!!!