A 4-piston brake caliper is better than a brake caliper with 2

Of course it changes the chassis setup! For example, in our Jesolo Apache chassis, destined to be the KZ category, we install the seat on rubber mounted supports in order to “free up” the central part of the chassis. The end result, of course, depends on the chassis and from the track’s grip conditions, but undoubtedly it is a change which modifies the vehicle’s handling. Furthermore, the rubber supports significantly decrease vibration generated by the KZ engine.