After testing every other set of velocity stacks in the aftermarket for these bikes, we simply knew that we could develop something better for a relatively low cost. After countless passes on our dyno, and hours of real world datalogging and testing, we have developed our own velocity stack design for these bikes with our partner at Turn 13 Motorsports.
These velocity stacks simply outperform every other option currently available for these bikes. When paired with a proper full exhaust system and our custom ECU mapping, the dips in the midrange torque and horsepower curves are dramatically flattened, and peak torque and horsepower are dramatically improved!
For an in-depth explanation of the performance improvements you will receive with our these velocitys (when paired with a proper exhaust system and our custom ECU mapping), please watch the video of our protype testing linked above.
For installation tips, please watch the video of our final version's release announcement, which is also linked above.
NOTE: These velocity stacks should ONLY be installed when a proper aftermarket exhaust system is already installed on the bike, as the OEM exhaust poses far too much of a restriction to allow these velocity stacks to perform as intended.
NOTE: We HIGHLY recommend ONLY using these velocity stacks with our custom ECU mapping in place for them and your specific aftermarket exhaust system.
NOTE: These velocity stacks were developed, and are intended, for the improved airflow that the "free intake tube mod" provides on these bikes. We cover this free, and relatively easy, modification at the ~4:00 minute mark in this video here: https://www.youtube.com/watch?v=CcZQrnUfvn4
As always, if you have any questions, don't hesitate to send us an email at support@2wheeldynoworks.com. We're always happy to help!