Norton/Ninja400R Velocity Stacks ECU Flash Package Deal – Kawasaki Ninja 400 / Z400

$594.95 $544.95

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Already have a full exhaust on your bike? You can still save $50 on our Ninja400R Superbike Velocity Stacks paired with our custom tuned Norton Race Spec ECU flash!

By far the best power and performance bang-for-the-buck upgrade for your Ninja 4oo is to install a top performing exhaust with our Ninja400R Superbike Velocity Stacks and our Race Spec ECU Flash.  Add 7+ horsepower and 2.5 ft*lbs of torque to your Ninja 400!

*We recommend installing a block off plate at the same time as flashing the ECU or you will get some backfiring from the exhaust.


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This dyno chart shows the dramatic improvement gained on the same bike with the same exhaust just by adding our Ninja400R Superbike Velocity Stacks!  Look at that top end power!!!
Norton Flash Ninja400R Velocity Stacks Spark Exhaust Dyno Chart Norton Motorsports

This dyno chart shows the performance of the top 3 exhausts combined with our Ninja400R Velocity Stacks and our Norton Race Spec ECU flash that is optimized for this setup:

Ninja400R Velocity Stacks Spark Graves Akrapovic exhaust Norton Race Spec ECU Flash

Additional information

Weight 1 lbs