In the world of gravel stage rally, brake size is limited by the 15″ rally wheels and tires that are commonly used on rally cars. What do you need to do to modify the braking setup on a car like the Subaru WRX STI that can only accommodate a 17″ wheel? DirtFish Mechanic, Tony Torchia, walks through downsizing the brake package and parts we use to setup our cars for rally.