Originally Posted by Beemerboff
Snowbum suggests drilling 4 holes in the flat portion right at the rear adjacent to the outlet.
My first Beemer was an R60/6 that had this modification. It definitely had a more authoritative sound than other airhead bikes I'd ride with.
"Knobby tires and a GS do not a dirt bike make" - from Coco's sign-in book.
'81 R80G/S-SOLD (sad but I think the new owner is a really happy guy)
'83 VW Westfalia (my 4 wheeled adventuremobile)