Yoshimura Honda Dual Exhaust

Listen in as we chat with Yoshimura R&D’s Erick Bartoldus (Big E) about the development and what Yoshimura has into the 2018 CRF250R’s new dual exhaust system.

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13 comments

    • They are making this sport not affordable. Where I grew up racing in West Texas we would have at least 400 riders a race During our summer series . 15 years later they are lucky to get 150 . With five time the injury rate. Now either over a generation humans forgot how to ride motorcycle or it has something to do with the four stroke phenomenon.???

    • With the early mounting point of the subframe, building a single exhaust can which will even come close to passing sound restrictions is nearly impossible. The can would be so long with the mounting point right at the start of it, it would have too much leverage and tear itself to pieces as you rode it. Also, with the subframe being designed to work with hard mounted cans, the exhaust becomes part of the structure for the rear of the bike, removing one side would cause more flex on that side. Putting even more load towards the remaining side, if a single were attached. Also, FMF, Yoshimura, PC, and more have commented that a single system allows for better top end power but duals produce better low end…if you hear ours or any other websites test on the new CRF250R you’ll notice we all mention the new engine is lacking bottom end, so a single would further than problem. Lastly, making a two (two heads pipes) into one system on the new CRF250R would be a pain due to the layout and how little room there is to do a combination pipe.

    • Oh and guys, here’s a life saving tip. Never, ever touch any Titanium muffler or header with your bare hands, it’s going to leave a mark and then when the header/muffler gets hot, you’ll be able to see it very easily.

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