I installed the Classic Motorcycle vents in mine. I am not the only one on the site that has them. I found out about them here. They do work and don't look too bad either. The door is multi-position with stops to stay in position from full open to full closed. The "fun" part is taking a Dremel tool to a pair of lowers.
2005 FLTRI Black Cherry, 95" Big Bore, Thundermax w/Auto Tune, V&H Dresser Duals w/Klock Werks SS, Andrews 26 Cams, SE Stage 1 intake, SE OD/6 Speed, Wards FCS cooling fans, Krome Werks Stretch Heritage +2 bars, Progressive Monotubes, 444's, & Touring Link, Michelin Commander II's, 14.5" Madstad, Lowers with Classic Motorcycle Vents, detachable King Tour Pack, Daymakers