LOWER Version Velocity stacks of their RACE Design are here! These work with the YEC Upper Stacks and all the Hardware, so they are a direct swap. Check out the power gains when compared to the YEC complete stack kit (that costs almost 4 times as much!!):

Perfect for the More budget build or if you just want bit more "UMPH" on the street and not sacrifice street-abilty.

Installation is the same as OEM stacks, no modifications needed.