Description:

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:

Power/Rpm

Torque/Rpm

Test info:

Suzuki Gsx-r 1000 2009 with Arrow full exhaust

Blu line = Stock kit 

Red line = Venturisystem (No AFR tune)

Contents of a package:

• 4 racing velocity stacks racing made by CNC machines
• 2 support shafts of inox steel made with laser cutting machines
• assembly instructions

Warnings:

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

More Air =  AFR lean

Shipping & Returns

Payment methods

Technical Development

What does it mean AFR?

Other results from our customers:

Power/Time

Info:

 Suzuki Gsx-r 2012 1000  , Akrapovic full exhaust system wit Dynojet PowerCommander 5

Blu line = Stock kit 

Red line = Venturisystem (No AFR tune)

Tested by Andrea Chinarello di Okmoto