If you are still with the stock air cleaner, than yes. You will need to upgrade that to complete the stage 1. The SE is a good choice as well as Wimmer. You will have to tune some when increasing the airflow into the motor.
I went to a TTS Mastertune and am very happy with it. also have a S & S stage 1 A/C, fullsac xpipe and RC Components slip ons. if you can post on a forum you can do a flash to your ECM. it walks you right through it.
Finally got all the new stuff installed on the bike...
Gen3 TFI
SE Stage 1 air intake/filter
Klockwerks slipons
Winter keeps coming back around here. Last weeks' 5 inches of snow melted off yesterday and I got a quick ride in this afternoon. All I can say is "wow"! Huge improvement in acceleration, kind of scared me a bit when I first took off. But that fear quickly turned into an ear-to-ear grin.
My only question now is, why did I wait so long to make these improvements? :s