i m selling the Remus exhaust box, it cost over £300 about a year and a half ago, only done like 10000 miles if that since fitted, sat for a year due to cambelt snapped.
£200 , i ll deliver and fit it for petrol money .
This is the best exhaust for the 166 in my opinion, it sounds almost stock just a bit throatier, then when over 3500 4000 revs it is a bit louder

but really nice sound. not anywhere near boy racer sound