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Discussion Starter · #1 ·
Does anyone have a link to the form you fill out for a Vforce John Tune?

Sending off my eS ECU to him. His tune on my Blue base model was awesome.
 

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Discussion Starter · #5 ·
Vforce John tune advances the timing, night and day over stock tune. Have to run 93 octane fuel.

Eliminates all hesitation off of idle, pulls hard through the mid range. give full throttle unrestricted reverse.

WELL WORTH THE $300 for the tune. Dyno proven, even on the eS model.
 

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Holy smokes, 86 mph!! I want one! Does Kawasaki have an issue with tunes for warranty?
 

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2020 Green KRX
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no worries, as expected it turned into a hate speech thing based on rumors and opinions instead of facts and data.
People are entitled to their opinion. And you are entitled to ignore it. Maybe their experience isn’t the same as yours. Either way the contact information is there and I’m sure someone in the future will need it.

P.S. In regards to facts and data- I do believe there are a few members that their engine blew up with a VFJ tune. I also believe a forum member posted the back and forth messages they received from him and they were pretty rough. So indeed they are factual.
 
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