The 2-Up Silhouette is as sleek and stylish as the Silhouette is, but it features a subtle passenger area, perfect for cruising around town. Installation of seat ZPN 741412 on 2006 FLST, 2000-2006 FLSTC, FLSTF & FLSTSC and all 2000-2005 FX Softail requires the seperate purchase of seat bracket ZPN 758351.