These Angry 420 Slash touring slip-on mufflers deliver a deep, aggressive roar and customizable sound for Harley-Davidson Twin Cam touring and trike models from 1998–2016. Large 4-inch bodies with dual stepped baffle cores, CNC machined billet end caps, and a modular design let you swap baffles and end caps to fine-tune both tone and style while using a clean, weld-free installation on stock header pipe clamps.