I have a vwr exhaust on my stage 2 edition 30, turbo back. The differences I found from when I was looking at systems was the 'R' on the tailpipes instead of miltek, a shallower smaller rear suitcase silencer, and the system is resonated in the usual bend just after the centre section BUT it's defo smaller than the miltek resonator!
Sounds good round town and better when you plant the loud pedal! Although saying that I'm gonna make it non res I think