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Hey guys, I’ve recently purchased a 2019 CBR500r and didn’t really like the look of the exhaust so I purchased and installed a Coffman’s shorty slip on. I’m experiencing what sounds like back pressure and wondering if anyone has had a similar problem and what they did? I’ve heard it’s a simple fix just reprogramming the CPU but not sure. Thanks
 

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Are you hearing what sounds like backfiring in the exhaust (pops and bangs, esp when decelerating)?

If so, you should probably try a PAIR system block off before doing anything to the ECU.
 
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