I am curious if anyone has done this or seen it done??? I am thinking of doing it to my 09 XP 550. It seems to me that the dual outlets would provide better flow and maybe even sound better

 

Hmm...interesting thought. Right off the bat I thinking it should fit?

 

Put one on my 09 550XP as soon as I got the atv...It is a direct replacement...

 

How does a pipe for a twin cylinder motor just bolt to a Single Cylinder motor ? Unless the 850 is a 2 into one pipe then spreads to dual mufflers?

On steet bikes we tried to get 4 into one headers, from stock 4 into 2s,not the other way around. lose some mufflers not gain them.

 

THE MUFFLER disconects from the manifold so its just a replacement with 2 outlets. Now the question is performance?

 

You would think more back pressure from a single exhaust would perform better like on steet bikes.

More like can I put the single exhaust from the 550 on the 850 should be the question.

 

Putting the 550 muffler on a 850 would probbly choke the motor out. It wouldn't be able to release the exhaust fast enough. (that would be my guess)