I will be roadracing my 2003-04 Yamaha R6 with the Graves velocity stacks. Should I use all four velocity stacks or only two on the outside cylinders?
For roadracing we recommend using only two of our velocity stacks on the #1 and #4 cylinders. This will provide more power up top in the RPM range.
For drag racing we recommend using all four our velocity stacks. This will provide more power down low in the RPM range.
Go to the Velocity Stacks page by clicking here
