Yes, as Jack said, you should have a factory support bracket. Leave it on, works great.
btw, Jack was the first person to have an Outlaw 606 Air Cleaner for an M8 engine.
He was kind enough to bring his M8 Freewheeler up our way for a few days several years ago. Was a good time having him here and doing some R&D with his Freewheeler.
Looking forward to the next time he can make it up this way.
Kevin