The Miltek is great, as my Mrs now says, ' do you want the road to know your home then ?' It's not too bad on the motoryway, but does make good use of the 6 cylinder sound. It's not the full system, only a CAT back. Although you do have to cut the little resonator boxes off the OE pipe.
Wondermike, if he's anythning like me... he will find it bonkers. in the swiss alps and tunnels it is awesome to say the least. It drones a bit at low revs, but it howls as you get up the rev range! standard it ain't. i went for the full system with 100 cell racing cats!