February 13, 2012(Pacificq, CA)
The installation instructions might be a bit more clear, but anyone with even a small amount of mechanical skill can fit this thing in 30 minutes. I used it with a new set of Bassani pipes and the increase in torque is noticable.
September 02, 2010(clarksville, TN)
let me start by saying, I believe in k and n, everything I own has one. The RK series is way OVERPRICED. I will say I got the k and n, power commander, big radius, and my Harley was a different Harley; before at 100mph my bike would lose power, after at 120mph it will still pull you back, would I buy it all again, OH YES!
June 22, 2010(Baldwin, MI)
It was an easy installation, took maybe 10 minutes put on. I can hear and feel the difference.