Hi,
After looking at this thread I am going to do the same. I have just bought two lengths of 50mm X 500mm perforated stainless tube and two bags of baffle packing, �20.00p Bargain..lol. I will do this over Xmas and let you know how it goes. I will also do the rear light mod the same time.

MERRY CHRISTMAS TO YOU ALL

Croxalla