Has anybody tried the sending a hole saw down the exhaust on the M90? I see the 109's do it as a way of de-baffling, is our exhaust the same set- up with the baffle lay-out.
If and when you do it let us know how it turns out. If it fails there is always the 6-8 hour method or aftermarket pipes.
Thanks stevef I was hoping that someone would give this a go on the 90 coulld you give us a full run down? eg how long did it take? any probs with the hole saw? has it made it low and rumbly? how loud is it? sorry for the questions but I was kinda of excited and I can't afford to by new pipes.:congrats:It's done 7/8 hole saw(with the longest extension you can find over 20 inch) straight down the pipes. One baffle war on top pipe, two on the bottom, sounds great.