When the evo brakes we all look at it and go umm.
A Subaru Wrx or sti are like a brown cow , there in every paddock. There for easy to get parts, do up grades.

Have a look at this exhaust, there are better youtube vids put there so have a look.

https://m.youtube.com/watch?v=7zQyQzbty_o

I don't think the have a AU dump pipe. My mate Brett has the invider q300 tb and it sounds quite different to my MRT turbo back. Gorden has the norm buttler unit. This covers most of the market so next meet up you can get some ideas of the different sounds. IMO Brett's is the best as you can get off the throttle and it almost sounds silent. When you really step on the gas it's just alive. The titanium tips on the invider unit also look the goods and stand out nicely on white.