The world's first universal valved muffler for motorcycles, by Valvetronic Designs. For years riders had to choose between wild, aggressive sound and stealthy quiet. After conquering the automotive exhaust market, Valvetronic Designs brought its valved technology to two wheels so you no longer have to compromise.Engineered for every riderCrafted from premium T304 stainless steel to handle everyday riding and track abuse alike, with a sleek, compact design that integrates with nearly any motorcycle. A manually activated valve gives you total control of your tone. Valves open: the straight-pipe experience — gases flow freely for an aggressive, exotic note. Valves closed: ride in stealth with drastically reduced volume for late-night cruising or city commutes. Performance and soundBy fine-tuning exhaust flow, the valve system improves throttle response, horsepower and torque for sharper acceleration and a more connected ride.Features T304 stainless steel construction. Manually activated valve for true on-demand control. Universal fitment for a wide range of motorcycles. Compact, aerodynamic design. Optimized exhaust flow for improved performance. Simple, DIY-friendly installation. 100% reversible. Emissions disclaimer: This product is intended for off-road, race, or closed-course competition use only and is not legal for use on pollution-controlled vehicles operated on public roads in most states and provinces. You are responsible for compliance with all applicable emissions laws. Please check your local laws before purchase and installation.Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email [email protected].