I guess fast is a subjective term, but at 12psi, that Turbo is WAAAAAY under its efficiency zone. That baby should rip REAL good with about 20-22, much closer to the sweet sport for that compressor map. He's doing the right thing about being conservative wit the boost on stock bottom end.300 whp isn't enough for me in a performance car. Then again, I've been spoiled by big cubes, and well built turbo set-ups.