I did stg1 at the 1k service, thats, Rush 2'', SE A/C, SERT and dynoed back in 07,, bike ran and started better, just not much gain in performance..

To really notice an improvement, U need to also put in some cams.

BIG difference when they went in along with the STG1 stuff..

U won't know or believe how much better U'll enjoy the bike when U add them...