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Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
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Old 12 Aug 2008
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2008 Yamaha Tenere Exhaust System and Possible Improvement

Please forgive my technical illiteracy. On the new 2008 Yamaha Tenere, can someone please explain to me why there are two pipes coming from the engine case? From what I can see, it seems to be a 2-in-1 system given the stock exhaust which is a giant flat box. So if I change that exhaust into a Akrapovic or GPR that looks like it splits from the single pipe into two separate pipes that lead to two separate exhausts:
1) would that become a 2-1-2 system then, 2 from the head into one pipe then splits into two again?
2) would this setup give a better airflow and hence slightly more power than the stock setup?
3) someone on this forum said about just keeping one pipe to one exhaust, would this one-pipe-one-exhaust setup be better than 2-1-2?
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Old 12 Aug 2008
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The twin header pipes are like my XR650R - a seperate pipe for each exhaust valve, due to the spacing of the valves/layout of the head presumably?

There is no reason why once they combine into one main pipe (before the silencer), than you couldn't replace the twin pipe flat box collector catalyst monstrosity with something more svelt - either a neat twin silencer set up (carbon cans would save a heap of weight) or even a single silencer on one side, and utilise the now vacant space where the other 'can' was for a tool tube or similar perhaps?

I'm thinking along this line too btw...

JennyMo xxx
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Old 16 Aug 2008
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I'm sure the exhaust is what contributes to it's 20 kg premium over the 'Classic' Tenere!
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