Agree with Andrew, the new Scorpion STR Cat Back system is good……very good (Andrew and I own the 2 R&D “test” cars, and I have been running one on my 2.0FSi petrol since late last year)
I would recommend the Non-Resonated system, without the smaller silencer, this will make your car sound great, seems to rev a little more freely too.
All I would suggest is, like Andy says, contact STR via his link, and explain your engine isn’t on the list, (I suspect you have a 50mm pipe, but you should check this, you need to measure where the exhaust comes out of the tunnel in the floor, just before the bend round to the first silencer, there could be a join here)
Its a great exhaust, and the quality is comparable with other “Hi Quality” after-market exhausts.
And here it is
