I got a system with a sports cat from Japspeed from turbo to tail, 3" all the way with a 4.5" exit for £500
a little cheaper than what you're looking at there, and brand new, and you get a bung with it. quite noisy without the bung
for new age heres the sports cat for £249.99
http://www.japspeed.co.uk/Subaru-Imp...t/p-24-72-444/
and the cat-back for £249.99
http://www.japspeed.co.uk/Subaru-Imp...m/p-24-72-443/
I have the classic version