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ATS 14.4" Rear Brake Kit

This is our rear big brake kit, it uses a Brembo big 4 piston caliper and a 14.4" rotor. The stock ATS rear caliper piston area is 2.07 square inches, and our rear 4 piston Brembo area is 4.40 square inches! This kit will fit behind the stock 18" wheels, but it wont fit with the stock 17" wheels. 

You will want to also run our Goodridge stainless braided brake lines.

CTS note: This kit will fit '14+ CTS, the only extra component that is needed is a pair of 10mm fine threaded Banjo bolts and copper washers, and you will have to trim the outer backing plates for the larger rotor. 


    • (2) Calipers
    • (2) Rotors
    • (4) Brake Pads 
Customer Reviews
5.0 Based on 3 Reviews
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Florin B.
Romania Romania

Best quality

Very good quality and much more power brake and safe.Good job ZZP!

ZZPerformance ATS 14.4 Rear Brake Kit Review
Quincy B.
United States United States

Love em'

I had these installed on my ride, and I am nothing but happy. Will be doing more business with these guys in the future when I need them.

Eric R.

14.4 Rear Brake kit 2015 Cadillac ATS

Quality of the parts are excellent and they make a big difference between the one piston factory caliper and the 4 piston Brembo. Recommend replace the ProStop Z17 plus pads with the Z23 extreme. They are more adequate for this kit, street and the occasional track use. For future customers: due to the extra inch of the new rotors, the back brake plate require some trimming to clear the rotor and the new brembo caliper. You can replace the plate with the ATSV, but this will need the removal of parking brake and axle shaft. Trimming is easiest, that's the route I took. Highly recommend this kit for any car enthusiast.