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Old 05-08-2013, 09:30 PM   #14
Zuber's Avatar
Joined: Sep 2004
Location: Main Street, Shedd, Oregon
Oddometer: 2,137
Originally Posted by tacosupreme View Post
AFR is irrelevant. Fumes are getting in the passengers helmet because the cans are short allowing exhaust gasses into the turbulence created behind the second rider. That doesn't happen with slightly longer cans, even if the bike is running pig rich. I know I have to retune, and I also know I need different cans...anyone want to trade for a remus 2-1? lol

I only have a couple hundred miles on them, but I expect they will last a while.
You can get the same effect riding hundreds of feet behind. The cats don't stink, the non-cats do stink. My point was that you have the same AFR going into the muffler, and a different burned amount coming out. Not much to do with the length.
"Dad, can I get a motorcycle when I grow up?"
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