Description:

3D printed composite upper and lower stacks, made to exact WSBK specs.  The profile of these stacks are the same as the YEC (Yamaha Engineering Corporation) velocity stacks.

Direct replacement of the OEM velocity stacks, fits the stock air box.

This stack kit contains both upper and lower velocity stacks and the necessary installation hardware. Some parts of the factory velocity stacks are needed to be transferred to the new velocity stacks.

We highly recommend the Brentuning flash for the Yamaha R1 / R1m in conjunction with these stacks to have proper fueling for your motorcycle.

These stacks are available for both 2015 to 2019 models and 2020 to 2023 models. Please select the correct model year before adding the item to your cart.

Please allow 5-7 days processing time before this item is shipped!

Fits:

Yamaha R1 - 2015 to 2019 (Please select model year before adding to cart)
Yamaha R1M - 2015 to 2019 (Please select model year before adding to cart)
Yamaha R1 - 2020 to 2024 (Please select model year before adding to cart)
Yamaha R1M - 2020 to 2024 (Please select model year before adding to cart)