I am interested in your sound deadening efforts. I find the tyre noise on course grain paved highways really annoying. Some of Melbourne's freeways have much smoother surfaces which means quieter inside. But I do not have the skill nor inclination to install sound deadening myself & am not sure who or where to get it done. I am also interested & upping the exhaust sound (which seems like a contradiction!) as I like the WRX sounds. How much & where did you get your sound deadening done?