Made by DBA for KNS Brakes, these rotors were originally designed so smaller wheels could be put on the WRX STI rally car during gravel stages. It allows the use of smaller four-pot/two-pot Subaru calipers instead of the larger Brembo calipers on an STI. These rotors can also be use to put the four-pot/two-pot Subaru calipers on the 2015-2021 WRX.
The front rotor is the size and shape of a standard WRX rotor, but has a larger center and is dual-drilled so it can bolt up to any STI (or 2015-2021 WRX) front hub. The rear rotor has the outer diameter and thickness of a 2006-07 WRX, but the parking brake drum size of the R180 STI rear end, and is also dual-drilled.
Note that these are NOT for use with stock STI calipers!
Sold as a set of two rotors. Choose front or rear. Fits 2008-2021 WRX STI , and 2015-2021 WRX.