Brembo GT information source
I've bought a set of Brembo GT brakes for my WRX and have
spent some time acquiring information.
I decided to share what I found, to
make life easier for those that buy these in the future.
My set is for
the front only, with 328mm, 2-piece rotors and 4-piston calipers.
calipers are radial mount with a bracket that is bolted to the upright, behind
The calipers are the Brembo A family. These can be used for
smaller size rotors, upto 328mm. Below 328 the next size down are 1-piece
In the Tire Rack product page, these are shown as front-only
system, designed to work ballanced with the OEM rear brakes. I thought I have
seen a foot note in one of the many Brembo online catalogs I looked at recently
The 328mm fit no problem under my 18" Rota
The 2-piece rotors in the Brembo GT line-up are floating rotors.
Yes, rotors can be of a floating type as well. Not all 2-piece are
This means that the friction ring is attached to the hat with
hardware that leaves some room for both axial and radial relative motion.
Some of the following information is first hand, from my installation,
some is from Race Technologies, who are Brembo's US representative and some is
from internet forums, especially BMW forums.
I'll note the last source, as
it's not "confirmed".
more even wear, lack of
distortion of hat under severe heat/expansion, weight
reduction/elimination of knock-back (this from BMW
-The 328mm kit is lighter than the smallest WRX OEM
2002 front brakes.
The rotating mass reduction is over 2 lb/wheel. The
caliper is noticeably lighter too.