this post was submitted on 19 Jul 2023
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Does exhaust affect engine performance? (self.motorcycles)
submitted 1 year ago by myesoterictits to c/motorcycles
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I have a 2021 rebel 500 and thinking of getting a radiant cycles shorty, but according to my google search, exhaust not only muffles the noise, but also improves engine performance.

so my question is, if i change my stock exhaust to radiant cycle shorty, will it affect my engine performance? Does it hurt my engine? thanks!

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[–] [email protected] 3 points 1 year ago

Aftermarket exhausts that allow more airflow improve performance, not hinder it. But if you improve your exhaust rate, then you also need to improve your air and fuel flow. The right way to do it is to get an exhaust, a high flow air filter, and re-jet your carbs, or retune your injection. Then you maximize all of the essentials all at once and you pull more HP out of the same engine at the cost of noise and emissions.