Cost £830 with some discount, it was a proper euro spec exhaust so didnt need to modify the flange holes like you do on the japspec ones.
AFAIK Mugen does NOT make any specific product in "euro spec" configuration (check any Mugen catalog).
I think they (nicely) modify them prior to customers delivery.
I used to have that on my car.. soundwise it was very nice... but performancewise.. so so (it's a street product afterall).
£830 is a little "out of the world" though... :roll:
Have fun.
Carlo