KEV mod or Booster plug

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Vatdiepad

Pack Dog
Joined
May 2, 2014
Messages
68
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Bike
Yamaha XT 660 Z
Hi XTZetters

I am about to install twin LeoVince pipes and combine it with a DNA 2 filter setup. 

What is the best? Kev mod or Booster plug? Or leave the engine management to control fueling?
 
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