Velocity Stacks Kit for Aprilia RS 660 Tuono 660 (2021/2024 - USA 2025) by GRT
SKU: MB00230-VSTACKS-KIT-RSV4
A velocity stack is a trumpet-shaped funnel fitted to the air entry of an engine's intake system, carburettor or fuel injection. It will aid smooth and even entry of air at high velocities into the intake tract. Often, added noise is sacrificed for gains of 2-4% when stack lengths are optimised for the engine. Modified engines often have the original air box and associated ducting removed and velocity stacks are installed as accessories.
In amateur and professional racing, check the rules on aftermarket velocity stacks.
This intake stack kit for the Aprilia Tuono 660 improves torque in the whole rpm range, included in the price is a matched ECU map to be flashed with the UpMap system.
You can buy the UpMap here:
UPMAP T800+ FOR APRILIA RS660 TUONO 660 – www.mbspecialparts.co.uk
Bundle UpMap + stacks available here:
UpMap Gabro 660 stacks for Aprilia RS Tuono by GRT
ATTENTION: it’s a race product to be used in closed circuits, both stacks kit and UpMap mapping are not intended for street use.
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