has there been a pipe shoot-out for the pred. and if so can somebody tell me which month and mag it was. i have a pro circiut now and it is loud. and with all the regulations i want something a little quiter but want to keep the hp. i would like to read a good detailed comparison before i rush out and buy this time. thanks.

 

if there has not been a pipe shoot out for the pred than there should be. i think.[img]i/expressions/face-icon-small-wink.gif[/img]

 

bump.

 

i dont think there has been a shoot out yet.
if sounds is an issue... go with the WB's Pure polaris pipe.
i myself prefer the "open style" pipes... but they are loud.

 

Rick, I am pretty sure thunder alley maked custom pipes... YOu may have to sacrafice loudness for a bit more flow.. Ill check into thunder and let ya know... Or you can call and ask them.

 

Just by looking at the new dirtwheels mag, with there yfz450 pipe shoot out will give you a good idea on db levels. Also on power gains . I think thats the closes thing to pred shoot out ,both engines being rev motors. Im leaning towards the duel looney tunes .Here in Oregon the db level is 93 +- 2 thats lower than everyone else. [img]i/expressions/face-icon-small-disgusted.gif[/img]

 

I've messed around sound metering various silencers. The White Bros/Pure Polaris unit will always get you in under any sound limit. Also, the quiet version of the HPD is also piece of mind.

 

If you just what a slip-on pipe, I would recomend the White Brothers E-Series. I have one on my quad and I like it. Know if you are looking for a whole exhaust system. I would recomend a HPD PowerMaxx pipe. I hear good thing about that exhaust system.