Description:

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

• Kit long version for midrange and high Rpm increase power

• Kit short version for High Rpm increase power

• 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

Test info (about long version):

Fz1 2008 with Arrow full exhaust system and Dynojet PowerCommander

Blu line = Stock kit with AFR tune

Red line = Venturisystem with AFR tune

Contents of a package:

• 4 racing velocity stacks racing made by CNC machines Long Version
• 4 racing velocity stacks racing made by CNC machines Short  Version
• 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?