Thread: Brembo brakes (ATS)

Well I needed new brakes and since I can't leave anything alone I decided to do a Frankenstein project. I installed calipers for a 2013 ats-v 4 piston brembo bolted right up. Replaced hoses with ats-v hoses. The rotors are where it gets interesting ats-v rotors will not work due to the hat height. They are 321mm diameter. F body rotors are only 315 mm leaving pads hanging over the top. impala/lacrosse rotors are 321mm right height wrong hub bore. Gxp rotors are 323mm and fit however the pads hang over the centers just a bit. Any advice?

No they fit fine just need more rotor surface area. As the GXP rotors taper toward the hat instead of being flat. Just curious if anyone has found a rotor that meets those criteria.

Hub bore is fine. Pad to rotor surface area is to small as on the w rotors they taper inward toward the hat. As far as getting the bore opened up on the ats rotors the hat itself is to tall. Almost 2.5 inches vs the w 2"

No I did not, and I have never seen this and the kit they are selling is pretty reasonable. I spent about $450 piecing this together. For the front. I will try and call to get more info on those shims. I can also say that as is now it is a night and day difference.

Also it does fit 17" wheels these do clear the caliper height however a 1." wheel spacer is required for x factor clearance. I went with a 1.25" to clear the oem studs 04-08. Side note put the spacers on all 4 wheels not just the front ( requires rolling and stretching rear fenders) otherwise it will handle terrible.

So I finally got around to calling zzp they of course would not give me any info. Have to buy the whole kit. Gee thanks. I would say for now the best bet is to trim/mill a little off the bottom of the pad. I am still running them as is no issues yet, however I am certain the pads will eventually wear angled due to them being about 2mm to close to the center.