With proper jetting, NAPA hose and better air filter, will the Penland QS1 produce at least noteworthy power on a Prairie 650?

 

I don't know the answer to your question...but for what its worth, I've had a stock pipe, a Nyroc modded pipe and now a Supertrap full exhaust system on my P650s...and honestly, they were all pretty similar in performance (the stock pipe may have affected the off the line performance just a tad bit...hard to say b/c I did the Nyroc mod at the same time as other mods and I had a little more ummph down low as a result, but not much)...By far, the most noticeable difference in these 3 pipes was the sound quality.

I've seen other reports that aftermarket pipes on P650s/P700s had similar results to the above (not much performance gain, but a nice change in sound quality over stock).

Happy trails...[img]i/expressions/face-icon-small-smile.gif[/img]

 

With my Penland and a rejet the throttle definately hits a lot harder throughout. I'm happy with mine.