Upgrade your KTM with the FMF Q4 Hex Muffler, Part Number 045646. This high-performance muffler is designed to enhance your bike's exhaust flow while minimizing noise and power loss. Experience the perfect balance of performance and compliance with strict sound requirements, making it an ideal choice for off-road enthusiasts. Features: * Internal Baffles: Incorporates advanced baffles and chambers to promote accelerated exhaust flow while reducing noise. * Sound Compliance: Delivers performance well under the 96db sound output on most machines, ensuring adherence to strict sound regulations. * Spark Arrestor: Features a U.S. Forestry approved spark arrestor with a maintenance-free stainless steel screen for added safety and durability.