The curved bottom pads are the PP
pads.
The flat bottom pads are non PP
I bought both awhile ago to see the difference. It seems weird that the PP pads don't sweep the area closest to the hub.
I have a non PP SHO and used the PP pads.
I'm pretty sure it's the same case (10-12) with PP equipped cars.
Here's my non PP car with PP pads.
I think I'm going to switch back so I get full rotor sweep.
![](https://uploads.tapatalk-cdn.com/20180123/9c3b05b573e24df12b52579eec3bcbc2.jpg)