I have an 07 vul. LT. installed the rear scoot Works pulley two weeks ago. Just got back from a 600 mi. trip. It is well worth changing for slab riding. No more looking for another gear. The trip mpg was about the same because we were on the BRP as well as some town and country riding, a good mixed trip. The reason for the mpg being about the same for the same trip last spring I think is due to needing to run in 3rd. and 4th. where before I could run in 4th and 5th. on some roads but on the freeway it is no very nice. avg. mpg. 54 for two day trip.