RPT 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..