Unfortunately...lol...it is legit. Idk how legit the 550whp is, but it's got at least 430whp...that's all I'm going to say.
Question though, how did your wifes car get 200fwhp? If you didn't do motor mounts (and thus fix the wheel hop), then the car doesn't have a header. And without a header it would be damn near impossible to get 200fwhp on that car. I had one that did in fact have about 200whp, and I had almost no semblance of torque steer...