RC Components Black Torx Eclipse 4.5" Slip-on Mufflers for Harley-Davidson Touring models - RCX112B-23E Black Ceramic Coated 4.5" Heavy Duty Slip on Performance Muffler. Please note: This is a Special Order item from the Manufacturer. Unique design inner core transitions from a 2 1/2" louvered core into a ceramic wrapped 3" perforated baffle. CNC Machined Billet Alluminum End Caps for a Unique - Stylish Look. High Quality Muffler, Made in the USA! Fits all 2010-2016 Harley-Davidson Electra Glide, Ultra Classic, Street Glide, Road Glide and Road King models with Dual Exhaust. Performs best on 103 and larger Cu Inch engines.