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Rossier vs Pro Circuit

1014 Views 6 Replies 5 Participants Last post by  KiMo450R
I have a Rossier now but have always liked Pro Circuit from past experience and finally found one. Anyone ever see any dyno comparisons or any dyno at all of the pro circuit? This is going on a mild build 480 for xc racing. Thanks for any help. I can't find any dyno's with pro circuit.
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I have a Rossier now but have always liked Pro Circuit from past experience and finally found one. Anyone ever see any dyno comparisons or any dyno at all of the pro circuit? This is going on a mild build 480 for xc racing. Thanks for any help. I can't find any dyno's with pro circuit.[/b]
stick with what you have, more tech in it.
It is looking like I will.

Any other input?
I think the Pro Circuit looks a little better, but I'd stick with what you got. I don't think your going to see radical HP differences if you did the switch.
my buddy just put a procircuit on his 06 and performs well.


LOUD, sounds like a dasa. The rossier is provent to make hp.
I can't see much louder than my Rossier, but if it is than it would be very loud!!! I do like the Rossier power. I tried the supertrapp endcap but didn't like the low end it took away. Thanks for the input, keep it coming.
i hate the common dirt bike exhaust system i think they blow even tho i have a yoshimura i wish i could go back in time and not have bought the yoshi n probly would of got a dasa but i didnt know a thing about quads back then
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