I'm sure I've read on here somewhere that the MK7.5 has an improved exhaust note so might be worth letting the car run in for a few months before commiting to replacing the system in case it does what you want as stock. If it still doesn't do what you want then I'd look through you tube for videos of various options to get an idea of what does it for you. I think you can remove the middle box and replace it with a straight pipe for instance, could be a good easy option and economical.
No, its a brand new car (7.5) - its replacing the 64 plate (see line one of post one.)
cheers for the info watts