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This two-stroke exhaust expansion chamber is designed for Husqvarna TC 250-300 ccm off-road motorcycles manufactured between 2019 and 2022. Operating as a core component of the engine assembly, it regulates the pressure waves of exiting exhaust gases to ensure proper cylinder emptying and refilling cycles. The unit is shaped to route precisely along the motorcycle frame, maintaining required clearances from the chassis and cooling systems while utilising standard mounting positions.