3167SC COBRA Classic Slashcut M50 (VZ800 & C50 (VL800) all years also will fit VL400 & VZ400 Want a bit more sound from your exhaust but don't want to wake up the neighborhood? These 3-1/2 inch mufflers will do the trick. With a stock exhaust, your new bike probably sounds more like an idling refrigerator than a powerful V-Twin. But a pair of shotgun pipes might set off every car alarm in the parking structure. Looking for a happy medium? Then check out our Classic Deluxe Exhaust. The 3-1/2 inch muffler bodies include a quiet baffle with additional silencing material. What you get is a deep, throaty, rumbling exhaust note that won't have the neighbors up in arms.