Looking at a big gun or hmf. thanks

 

Procircuit is the best, also the most expensive. Thus the saying "you get what you pay for"

 

I love my Pro Circuit. Don't bother ordering the Quiet Core though - In my opinion it sounds like sh*@ and is no quieter. The standard core sounds awesome though. Perfect fit and easy install (took about an hour). I highly recommend it. Although, Big Gun is coming out with a Mike Penland (Kawasaki factory racer on the 650) Signature Series complete system. I talked to Mike himself and he said it was awesome and not loud. I got tired of waiting and ordered the Pro Circuit. No regrets though - sounds awesome, almost like a Harley.

Good Luck[img]i/expressions/face-icon-small-happy.gif[/img]

 

You might even consider White Brothers they have a site check it out.

 

Does anyone have sound pressure (dB) on any of the pipes? One of my riding places is very strict on noise.

 

I HAVE A PRAIRE 360 WITH A WHITE BROS. E-SERIES IT ROCKS
LOTS OF LOW MOD AND 2 MPH MORE TOP END WITH DYNO JET KIT
GET ONE IT WORKS GREAT AND SOUND BETTER[img]i/expressions/face-icon-small-happy.gif[/img]TextText

 

cobra or super trap, cobra is inexpensive and very powerful

 

My 650 performed about the same with both pipes that you mentioned except that it had 1mph more top end with the Big Gun.

My HMF is not Forrestry approved. Unless they have changed, this could be important depending on where you ride.

 

how is the IDSX? witch pipe has the most low end? got prairie stuck and want to get so mud tires.

 

From what I have read in other forums and from my personal experience if I were to buy a pipe for our 650 right now it would be the Pro Circuit. The HMF is not forestry approved that one is ruled out, my experience with the supertrapp on my Kodiak has forced me to never buy another Supercrapp for anything I ever own again, the Big Gun can fall apart over time "hear say only" and White Bros has external disk which can and will clog up with mud.

So whats left,... Pro Circuit. If HMF was Forestry approved then that would be a good choice also.