12 13 Kawasaki NINJA 650 velocity stacks air funnell bell mouth

  • 10 Units in Stock
  • Model: VS_33
  • Shipping Weight: 1lbs
190.00 €
Quantity :


Air funnel kit developed to increase performance  performing studies of fluid dynamics and dynamic testing on the dyno.

  • Increase power and torque at the mid and high rpm
  • The engine reaches its maximum speed in less time
  • Increased responsiveness of the engine during the reopening of thottle
  • Reduces the loss of engine power on approaching the rev limiter
  • Amazing intake sound


Package contents:

  • 2  racing velocity stacks in aluminium made by CNC machine
  • 2 rubber gaskets
  • assembly instructions

Dynamometers results:

 Click here for dyno results


Should i modify my airbox for mount venturi velocity stacks?

Is the venturi kit fully compatible with stock airbox?

Should i tune the ecu after venturi kit installation ?

Can i install the venturi stacks in a full stock bike?

If install an full exhaust system and i haven't make ecu tuning ,can i mount the intake funnels?

What does it mean AFR ?


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