SmarTop, yes it is. One of the best upgrades I've put on yet. The convenience of being able to raise and lower the top while moving up to 25mph comes in handy nearly every time I drive my car. I drop my top while pulling out of the driveway, or cruising down the street. Same as raising it.
I have to admit it does raise the cool factor up a couple of notches when you just hit the switch and forget about it. Pedestrians and drivers are looking at your car like it a damn Transformer! I see Porsche now incorporates this in there cars.
The Durametric software and cable allows me to monitor a host of parameters. If you get an idiot light you can clear it also. Oh yea, you also need a laptop. Here's the website;
http://www.durametric.com/
P.S. The claim by the TechArt guys might not yield 3hp but I bet it netted them a few sales.