Hi men. just drilled the baffles out of my 1100 classic and it sounds great. Gave it some good revs but haven't ridden it anywhere as yet. Sounds as though it will be good to go though. I spoke to the mechanic at Yamaha, in Ipswich, Aussie and he said he has seen a lot done with no major probs. I only got the bike last Saturday and it I was a bit nervous drilling but glad I did now. I have only 150 kilometres on it. The Phelps mod is what I followed. It is on the site, just search for it. Good luck and all the best. It is a 2008 model.
Last edited by fergy; 05-28-2010 at 04:15 AM.