3" RPT Mufflers - Black - '04-'13 XLRPT slip ons make use of all of the high tech features of the regular 3" slip on mufflers. Billet RPT style tip finishes off the rear. Bodies expand from 3" at the front to 3 1 2" at the rear. 2" constant velocity cores for exceptional sound and performance. Bonded e glass and stainless steel mesh. Exceptional sound and performance. High density e glass provides a deep tone. Made in the U. S. A..