Given the majority vote is it does little to nothing at all - then no, I don't think it'll do any damage lol
Even
if it works as advertised it wouldn't damage anything as it's performance enhancement is supposed to be a simple intake pulse modulation/equalization - so if ya've already got one go for it, if not - I'd not bother
This is one of those topics I'd heartily recommend using our google search on, there's
tons of info on it, including extensive testing