The OEM throttle bodies for the latest fuel injected MX bikes are mainly designed for higher RPM horsepower. However, this is not the best set up for all riding conditions and tracks. Therefore we would like to introduce the ProX Velocity Stack. The Velocity Stack has the following advantages:

• Faster and smoother throttle response improves power on low RPM
• Easy installation without remapping the ECU
• Manufactured in lightweight aluminum with a high quality finish

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