For those who don't want to use electric tape, or who actually prefer the benefit of TPMS, be aware that registering your sensors is inexpensive. $22 at my local tire shop. Of course you'd have to do it twice a year.
That's the first I've heard of that. So you're only gaining about a second and a half over the NA to 60. Pretty pathetic. Response is much better, but power is certainly lacking, even when the turbo is working at all.
You can be sure it won't cost the dealer anywhere near what he would...
At the price for sensors plus rims, it's worth considering just buying tires and remounting twice a year. Some places [Les Schwab anyway] will remount and balance your tires as long as you own them for free if you buy them from them. Too late for you, I guess.