HMF exhausts for the Honda Foreman are available as full systems in the Performance and Titan series. The Performance and Titan XL series exhausts pick up 3-4 hp and 3 ft-lbs of torque. The Titan QS system picks up 2 hp and 2 ft-lbs of torque. At idle, the Performance and Titan XL exhausts are 2-4 dB louder than the stock exhaust, while the Titan QS is only 1-2 dB louder than the stock exhaust. Free spark arrestor included!