Will slip-on's off a 2006 fxstc fit my 2008 fxstc? I know the motor is a different size but is the exhaust the same.

 

According the number of the mufflers in the parts catalog the mufflers/exhaust changed in 2007 as indicated by the 07 at the end of the number.

65184-07 Muffler assembly Domestic/Canada
66780-07 Exhaust pipe assembly front
66781-07 Exhaust pipe assembly rear
66737-07 Tube assembly interconnect

 

wont fit, checked rush web site and as stated the change was in 07.