In amateur and professional racing, aftermarket velocity stacks are often used to increase performance. Velocity stacks allow smooth and even entry of air at high velocities into the intake, increasing power in the order of 2% to 4%. Choose from 5 colors: Silver, Blue, Grey, Red, and Yellow. Recommended for racing use only. Compatible with carburetors with 50mm diameter air intakes.
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Velocity stack
It’s looking good on my bike. The part came in excellent condition and, in a timely manner. I wish I had found them earlier.
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Great item looks great fits well runs good
Great pice looks nice runs good
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v stack
great
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velocity stack for OKO 21mm
Excellent packaging . item received in perfect condition. All necessary screws included. Very happy with my purchase. AC