I just purchased a set of 13'' brembo rotors for a Cobra to replace the stock GT rotors. I want to get 4 piston calipers but I don't know if they will fit. The calipers I've found all say that they will work on a 1.25'' rotor. I don't know if those would fit on the rotors

 

The four piston calipers that came on the R have a different style of rotor. The 13" cobra rotor is made for the twin piston bullitt/cobra calipers. I would just get some 03 calipers personally. 4 piston is overkill and the cost for new brake pads will astound you for those calipers.

 

Thanks. I think I will get some 10th anniversary red cobra calipers.

 

Its what ive got, and I love it .

Tacked on some Powerslot rotors and hawk pads too. I stop on a dime