HMF exhausts for the Kawasaki Brute Force 650i are available as a ¾ system or a full system in the Performance and Titan series.
All series of exhausts pick up about 3 hp and 3 ft-lbs of torque. Full systems will make slightly higher power and torque compared to ¾ systems.
Performance and Titan-XL (Loud system) exhaust systems are 2-4 dB louder than stock at idle, and Titan-QS (Quiet system) systems are only 1-2 dB louder than stock.