Description:
Racing velocity stacks developed on dynotune (Dynojet i250) and tracks,designed to use on circuits and driveways. Prohibited use on public roads
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Increase power and torque at the mid and high rpm
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Greater rapidity of the engine to increase the revs on the whole power range
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Greater reactivity of the engine during the throttle openings
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Reduces the power decay of the engine toward the limiter
- Amazing intake sound
Dynamometers results:
Power/Rpm
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
Warnings:
The kit increases the air intake into the engine so may need to adjust the AFR (air-fuel ratio)
More Air = AFR lean
