So for the hell of it, I decided to warranty my pads all around.
I run Autozone C-max and I've been really happy with them.
There's one thing I've noticed.
The C-Max pads for the base are a different part number than the GT or GXP.
>The one on the right is the Base pad, the one on the left is the GT/GXP pad. Both fit perfectly fine, but the base pad has a smaller surface area until it wears and the pad material itself has a slightly different/smaller shape as well.
The pad on the left has more material and surface area.
The base pad also does not have the wear indicator tab that scratches on the rotor, the higher trim does.
>The base pad (right) clearly has less braking material on there compared to the GT/GXP (left). I don't get this either, the GT/GXP pads fit perfectly fine on the rotors behind my base calipers (still OEM)
Autozone sprays their stuff silver/chrome now, weird.
I just thought I'd share this little find, I don't know how it is with other parts stores, but at autozone for an 09 base G6 I4 or V6 it's the part number with the crappier pad, and all GT/GXP trims have the nicer pads with a wear indicator and more material.
(This is all for the Front brakes, the rear brakes part number is the same over all trims)