2010 yz450f EFI tuning without gytr power tuner

Good Evening Gentlemen 


Is there a way to EFI tune my 2010 yz450f by using personal computer ? or any other way does not include buying GYTR power tuner ? 



To do that, you will either need to install an aftermarket ECU or ECU add-on like a GET or Power Commander.  Either that, or figure out how to hack the factory box. 

any other ideas ?

Buy the tuner!

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