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Discussion Starter · #1 ·
I purchased a full dasa exhaust system with a fuel customs intake, also have a dynojet installed on my 2020 yfz450rse and tuned to the closest thing I could find for it, it has slowed the wheeler down at top speed where I lost about 4mph, there is also a slight bog every now and then but nothing bad, is there any chance anyone has a exact or specific tune for a full dasa system with the fuel customs intake.....

running 93 octane
elevation of 863'

thank you in advance for any help!
 

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I have the exact same bike and same intake and full system and I have the exact same problem on mine I’m not sure if it’s something on the tune dasa sent me I run 91 octane in my bike
 
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