Make sure you're running on 91plus. I grew up wanting to be a DJ, even went to college for it but my school's radio station had broadcasting power of .3 watts. Barely enough to make it across the street of the school into my own dorm, haha. But I'm a music guy and now that I finally got my STI the way I want it, I keep the music about 1/4 of what I normally listen to in the car.
My wife doesn't go for all the obnoxious noises (her name for turbo spool/burble tune) my makes so when we're together and I'm driving my Outback. I've recently started listening to my stereo at half throttle, just because the system is so clear. In the STI I just want to hear the spool when she surges and the bangs after shifting.
When I finally get to take a drive w/nothing to do and nowhere to be, driving the STI around town is my therapy. Here in NY there's a Subie every 4 or 5 cars. In the SE suburb of our city we have a very popular Subie Stealership, but the people love the lady owner and in that general area, literally there's a Subie every other car, but the STI is still scarce. WRX's are everywhere, they're about as common as Outbacks and Foresters.
I said all of that to say this, when I get the STI out for a ride it never fails, I see a guy and sometimes a gal on the side of the road motioning to hear the car, like wanting me to drop it a gear or want to hear it spool up and I'm more than happy to oblige and it makes my day to see people get excited about the car.
The Big Wang is a head turner to begin with but when an STI is huffing and puffing, snorting and farting (my language for Turbo Spool/Burble Tune), car enthusiast get excited to hear and who doesn't want to put on a good show. How shy are you if you get a car w/such a bold wing.