I know there is a thread out there on this but some of it is dated.
I have a Heritage with a Hefner Pulley and Tune. I ran about 10 1/4 miles on a drag strip and 2 days of open track and the clutch is ready for a change at 6500 miles. I drive it fairly aggressive when I do drive and give its only 100hp over stock I was wondering about the varying opinions of another OEM clutch vs Stillen. Thanks for your input.