Hey guys, my mates little brother just bought a Gc8 rx impreza and is looking to upgrade the exhaust system, any suggestions on brands and/or kits available that are road legal in Australia. Everything I google seems to come up with wrx kits and that won't fit because of the turbo, correct? Any help is much appreciated. His just after a nicer pitch and any kws boost. But here in Australia you can get defected for anything that's too loud. So Ive told him to stick with a 2.5 inch exhaust. Suggestions?