[Ant]

I am wondering what the advantage is with additional caliper pistons relating to Wilwoods SL4 and Wilwood SL6 calipers, as they both use the same size pad, plus the SL4 is more original on these cars and more acceptable for classic racing, they have 1.88/1.75" differential piston size which should be good on a nice 13" GT Rotor, but I think why not go 6 piston Wilwoods as they are not much more expensive.

Having said all that its good to make an informed decision so I am interested to hear any advice on brakes for an approx 1000KG or less car!