Ride.Race.Love......You say that like it's a bad thing! Keep in mind the LED pipes that everyone was raving about, was my design! I did all the testing and all of the dyno research! SO yes while I owned White Knuckle I did a lot of testing and built many fast motors and designed a lot of products for the industry. Definitely nothing to be ashamed of !!!!! These pipes are much like the original WK pipes with a few changes @ about half the price of LED's. Dyno results will vary depending on the motor and within that, Will also depend on Port heights, compression ratio, intake and exhaust port size as well as carb size. I will post dyno results as I test on different motors!