Collector box on my 600 has been blowing for a few weeks now , ive welded it up many times so nows the time to dig out the low milage downpipes I bought from a fellow foccer a few years ago and repaint them , wire brushed and sanded smooth and painted with halfords VHT.....they have come out a bit grey and not black as it says on the tin...look OK though......hung up in the garage to dry so all I have to do now is take the old ones off and fit new........cant see any problems there 
One, is never going to be enough.....