Originally Posted by Carter
Nice! Those are awesome brakes. If they're truly JDM calipers, and not USDM 06-07 WRX brakes, they're the exact same ones that Group N rally teams run under their gravel wheels.
There has been some discussion on whether or not the JDM ones and the USDM ones are identical. Some people find that the JDM brakes are slightly narrower.
Thanks, I'm looking forward to getting them. As for being identical, I don't think they are identical
per se. The JDM 4 Pots have raised cast-in lettering, where as the 06-07 lettering is just painted. I'm sure there's other differences too, but I haven't looked at either up close and personal.
Both are the same pad design, both use the same rebuild kit, both are heavy cast iron. I believe I've read that the brake pads and piston rebuild kits are the same as the Nissan 4 pots from the 300ZX and Skylines. All of them manufactured by Sumitomo.