hmf exhaust

[atvextremerider]

How is the hmf slip on exhaust. Has anybody dyno them. anybody running them?

[evan402]

run it on my 05 pred, love it. havent dyno it or anything but a noticeable power gain from stock.

[rooster300ex]

Alot of people like the hmf slip on. As long as u jet it right u will have some power increase.

[TheLane]

love it, 5hp gain over stock, with opened up air box.