Brembo Slotted Rotor/Ceramic Pads/Stainless Lines 05' WRX
Car: 2005 Subaru WRX with about 60,000 miles.
Setup: OEM replacement Slotted rotors all around
I have recently installed a whole new setup for my brakes. My stock rotors were going to shit and I got quoted from Subaru at 1100 to do the whole job. So I took it upon myself to get better parts and install for way cheaper. Anyway, my problem is I now have a grinding noise when I brake semi hard to hard. Everything was installed correctly, bled the lines and it now has all new synthetic brake fluid going through the stainless lines. I have ceramic pads all the way around with the OEM replacement Brembo Slotted rotors. I am at a loss for why this is happening. I have observed the rotors for wear and they look fine, no grooves. I want to take the tires off to have a look inside. Any ideas why this would be happening. When I brake slowly with minimal pressure I do not hear the grinding. Its not the kind of grinding you would hear when your pads are out, way more subtle.
Once the job was all said and done I did not hear the noise up until about a month after. Please advise. Thanks in advance.