Billet Velocity Stack Honda Grom/MSX125 (14-20)

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  • Increased performance and better throttle response
  • Helps direct more air into the throttle body
  • Perfect compliment to our full exhaust system
  • 6061-T6 billet aluminum
  • Black anodized finish
  • Laser etched Brock’s Performance logo
  • Proudly made in the USA
  • Click here to view Installation Instructions

After extensive and exhaustive dyno testing, Brock’s Performance is proud to introduce the all-new Honda Grom Velocity Stack. This black anodized, billet aluminum velocity stack helps direct air into the intake tract with minimum interference. The intake is especially important to consider when upgrading to a performance exhaust like the Alien Head 2 or ShortMeg 2. The velocity stack fits snuggly inside of the air intake snorkel within your airbox and provides better throttle response and increased power over OEM. Proudly made in the USA and laser etched with the Brock’s Performance logo.

Dyno Charts: Click image to enlarge

Velocity Stack vs OEM Airbox - STD Scale

Velocity Stack vs OEM Airbox - SAE Scale

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  • 5
    Throttle response

    Posted by JH on Jul 2nd 2019

    This is an awesome product on my 19 grom. It has increased the throttle response tremendously. Definitely makes getting of the line quicker and more fun. I have it paired with a high flow racing air filter.

  • 4

    Posted by Waz on Jan 30th 2018

    My mate has the stacks in his 2017 grom with a racing filter and a comp works exhaust. his bike beats mine in 1st and 2nd in a race by about 5- 6 meters (15 - 18 feet). Also 2nd race was around a corner - me on the inside with a stock grom and he still got me by 3 4 - meters by the end of 2nd gear.