Brake discs R1 Concepts or EBC

Absolutely normal. But I would still get one which is coated. My R1 Concepts from Rock Auto were completely black with a Zinc coating

I got EBC rotors and orange pads. Much better than stock IMO.

I’ve got the R1 concept drilled/slotted rotors and ceramic pads, felt a decent difference from the OEM but my rotors and pads were at about 35% life so it makes sense that I’d feel a good difference. I do some spirited driving around town and the brakes perform pretty great.

If money is not an issue, get EBC slotted rotors and yellow stuff pads. Amazing combo and will be getting the same when I need brakes.

I have the same setup except with red stuff on my supercharged jag and have 70k miles on the rotors and pads and still look like the day I bought em. I drove that car like I stole it all the time and it has been through pretty rough winters here in central KY.

I changed my rear brakes around 40,000km due to excessive rust perforation on the rear brake rotors and I opted for EBC slotted and drilled rotors paired with Green Stuff Series 2000 pads. They were phenomenal until 103k when I sold the car. A bit dusty but worked fantastic.

I think it's absolutely worth it if you have quality rotors. Had a set of drilled EBC rotors a while back, and had them turned 3 times before they were below spec. Think it was under $20 per rotor. Those things never warped.

Bought my 2018 Stinger GT new - within a few months my steering would shake like it had warped rotors - and it wasnt always the case - it would be ok at times, then come back. I use Auto Hold a lot - and it seems that feature causes the shaking in the steering wheel the more I used it. I did talk with Kia about it and they dismissed it and said it was fine - after being sick and tired of the shaking I went and bought new rotors and pads from R1 Concepts and havent looked back - no issues at all since I installed them and I use Auto Hold every single day.

My previous Maxima warped rotors like crazy until I put some of the EBC usr slotted on it. They are excellent rotors.

The stock front rotors have fairly significant heat spots and slight warping. I do mostly spirited street driving with some track use but obviously heat dissipation has been an issue, given how hefty the car is. Looking to upgrade the rotors and pads to more performance oriented options while hoping to keep the level of noise and dust relatively low.

EBC stuff is crap ATE is the gangster.