I bought a standard (ish) looking exhaust in stainless steel off a chap called daz from this forum. He had it made to fit well, be quiet, and look discreet and standard ish. Its as quiet as a standard system.
Its in very good condition, no damage, very clean, hardly used by myself or him.
I am either after 150 pounds, or i will swap for a scorpion exhaust.
Collection would be from Ashbourne in Derbyshire.