In this video Dave at Dynobike talks us through how to derestrict the very popular Kawasaki Ninja 650. With this particular example we see fantastic gains of 17 horsepower at peak and producing significantly more horsepower from 4000 rpm. Additionally there are also very noticeable gains right from tickover and up to 3500 rpm.

Hey there,
Once I take the restrictor screw out for the throttle cable, if I leave that plate in the throttle body and not get the bike tuned will I feel the difference? Or is it best to get tuned after?