I had it done to my bike last week and it really does make the bike run better. Funny thing is that most of the dealers don't even know about it yet. So you might want to have a copy of the actual bulletin handy to show them.
You can get a pdf copy of it here if your interested in it.
http://www.box.net/public/qyad1e3t1n
I would suggest you have it done, even if you have already put pipes, AC and a PCIII on it, if you have a SERT don't bother the SERT will overide it anyway.
