Sorry to pour water on that bud
Just trying to save you the heart ache having sat for hours refining and developing the sound for the MK5.
You have the 3.00" down pipe - why not go the whole 9 yards and complete it with our full 76mm cat back 'Sports system' - out of the 3 options we offer on the MK5 I think this could be what your looking for bud.
I can do it for you as a forum member at £425.00 inc vat
Cheers
Nige