These Tri-Glide mufflers are designed specifically for Harley's Tri-Glide Trike, providing you with a deep tone, clean lines, and even more ground clearance than stock. 3.75" muffler bodies. 3" radial slash cut aluminum tips. 2.5" perforated constant velocity baffles. Sealed pillow of woven fiberglass that wraps around the cores. Deep thundering tone.. Chrome. Made in USA. Chrome