Velocity stacks air funnel trumpets Yamaha T-MAX 530 2012

  • 10 Units in Stock
  • Model: VS_31
  • Shipping Weight: 1lbs
180.00 €
Quantity :


Racing velocity stacks  developed on dynotune (Dynojet i250) and tracks,designed to use on circuits and driveways. Prohibited use on public roads

  • Increase power and torque at the mid and high rpm

  • Greater rapidity of the engine to increase the revs on the whole power range

  • Greater reactivity of the engine during the throttle openings

  •  Reduces the power decay of the engine toward the limiter

  • Amazing intake sound


Dynamometers results:




Yamaha T-MAX 2012, Leovince slip on , no cat 


Red Line =stock kit 

Blu Line = Venturisystem kit with no AFR Tune 

Tested by : Magistrati Racing Savona







Contents of a package:

  • 2 racing velocity stacks racing made by CNC machines
  • 2 rubber gaskets
  • assembly instructions



The kit increases the air intake into the engine so may need to adjust the AFR (air-fuel ratio)

More Air =  AFR lean

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Technical Development

What does it mean AFR?