well let me tell ya advance key is no good , let me explaine my self, we did a dyno run on my shee, without the key i made 56.4 hp at the wheels, and with the key in it made 55.9 hp at the wheels,and we tried it 3 time each run and with different jetting, and it make the bike run hotter 10 degre more, so for my self its not worth-it just my 2 cents, by the way sorry for my english i am french but thanks anyway