I agree with Rex8 here on the swaybar upgrade and the H6 upgrade. I own an H6, a 2011Legacy 3.6R to be specific and have been trying to upgrade performance since I bought the car a year ago this past September with no luck as there are no performance upgrades available. However all those that I speak to are saying the same thing, upgrade the handling and you will be surprised so I re-iterate, change the swaybars and endlinks and the brakes and you will probably have more fun with your car than with the engine mods.
I am old and I don't do hookers and blow, but it is very funny nonetheless. Not sure if it will translate well to the young lad though!!