It's a shame that Porsche doesn't come out with a real "power kit" for the money they charge for X51. For US$16K it should bump the hp and tq by at least 40 each and make a noticeable difference in the lower rev range, where 911s are lacking. I would reckon that everyone on this board who owns any version of a NA 911 is regularly bummed out when they hit the gas in third gear at 2000 RPM.