How are you guys making out with pipes on your 500's? I heard that having a power valve on the 500 you don't need a pipe since the valve automaticaly re-adjusts itself to the different RPM's thus eliminating the need for a pipe? I have an FMF gold series pipe that came with the quad when I bought it, but never took the time to install it thinking that it would not make much difference with the power valve! Any input will be appreciated.

87 Quadzilla
87 Quadsport

 

I know I read on here awhile back on which pipe was best, and everybody that had a Paul Turner or LRD said it made a big difference over their previous pipe (FMF, DG, or what have you-I don't exactly recall), so I'm sure your FMF pipe will make a noticable difference over the stocker....I say try it......

That is interesting about the pipe and power valve though........

 

The stock pipe is a turd, put on that FMF and you'll notice a difference. The exhaust valve the Zuk has, merely changes exhaust Chamber Volume (with RPM) which helps with the transition between low end and top end.. The pipe will make a significant difference. I run an FMF on mine, and am seriously considering a Paul Turner or the LRD.
The LRD claims an additional 10HP over the stocker... The jury is still out on that one.

 

Is there a web site for these pipe mfgs. Paul Turner and LRD??? Thanx for the info

87 Quadzilla
87 Quadracer

 

Paul Turners website is www.duncanracing.com and LRDs website is www.lrdracing.com.