Available in 2 extended length. Dash-style tank has mounting provisions for stock-style dash and ignition switch (not included). Tank with fuel gauge bungs accepts OEM-style or aftermarket fuel gauges. Seat nose may require modification to fit properly with extended tanks.Some models may require sending unit modification. Size : Extended 2 / Extends 50.8 mm. Tank Capacity : 5,1 US gal. Features : With Fuel Gauge Bung. California Residents WARNING Cancer and Reproductive Harm. 2006 Harley-Davidson Softail Heritage EFI FLSTI. 2006 Harley-Davidson Softail Heritage FLST. We sell an extensive variety of UTV, ATV, motorcycle, PWC, and snowmobile parts and accessories. Sign up today to receive special insider notifications of deals, promotions, and new items!