Badass new exhaust from ksr concepts and six5 design

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Those are sick, I don't need to see the link! I'm gonna put a KSR on my 450 if they make one when I get to it.

Six5 is straight baller. I watch all his stuff on Facebook
 
I know Johnny Hale, their test rider. If he gives it a thumbs up. Its good. He owns JH racing, and is a title sponsor for the tqra this year. Makes me want one!
 
It's a bad pic I know. But Suzuki did similar back in the '80s. My DR125 had this.
03D48B32-4C1B-4605-A4BF-D82201A51F98-1459-0000014EA970785D_zps00682616.jpg
 
so pretty much history repeating itself only newer technology but same old concept
 
From what I understand they either
A. Dissipate sound waves or
B. single cylinder engines produce a pressure spike in the exhaust and this helps relieve and smooth out the pressure wave so you can run a muffler that's quieter and would be more restrictive without loosing power
 
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