I have been purchasing products from MountainPass Performance and can vouch for them. I currently have their page mill 2 piece rear rotor kit which has been great. Link to this kit here where you can read about the specs. I've been interested in getting a set for the front but they have not been offering them. After talking with them for a bit, they have proposed to sell a batch if they can secure 10 buyers as interest has increased on these. My current rear MPP rotors have shaved off 3.79 pounds on each side in the rear (I measured as well and their #'s are correct on their listing regarding the savings). The front should likely be about the same or possibly more over OEM, and then factor in the rotational mass for increased savings. I'm currently running 11.8's in my AWD+ with this setup and lightweight TSW Nurbergring 18" wheels. I'm hoping with these and some further weight reductions elsewhere I could probably dip into the 11.7's.
So if you would be interested in this buy so I can also buy, feel free to respond on here.
What it looks like on my dirty car currently:
So if you would be interested in this buy so I can also buy, feel free to respond on here.
What it looks like on my dirty car currently: