Virginia has an annual state safety inspection and while the CX-9 was under warranty, I was taking it into the dealership for oil changes.
June 2020 at 40K miles, I had been notified that the rear brakes were reaching the end of their life. I decided to order some upgraded brake pads for the CX-9.
Yesterday (April 2021) at 55K miles, they came off the car; the rear brakes were at the end of their life again. I was notified that they were at their end of life, as I had the car in for a transmission flush and rear differential service.
While they did have similar stopping power as compared to the stock OE pads, 15K miles is a VERY short life for brake pads. I believe the short lifespan is due to their low-dust compound.
I did NOT buy again.
I upgraded to the Z23 Evolution Sport brake pads. We'll see how well these pads wear.
I'm still on the OE rotors. I don't believe that upgrading to crossdrilled/slotted rotors will gain me anything. The brakes can already lock up on dry pavement with the Michelin Defender LTX M/S tires that I have on the CX-9. If I need to replace the rotors on the next go-around, I'll be using blank rotors from a reputable source such as "Raybestos" branded ones from RockAuto.com.
NOTE: The CX-9 is VERY hard on rear brakes for an AWD vehicle. Both times I did brakes, the rear brakes were at end of life while the fronts were still at half life.
I decided to do front and rear brakes at the same time both times to match the brake pad compound as well as for convenience. Owing to the electronic parking brake, it takes about 15 minutes per wheel to do brakes on the 2nd gen CX-9.