|OEM. I never measured, and the fact that I could activate the ABS seemingly instantly with either setup tells me that it doesn't matter.
But I didnt buy the AZZC wilwoods to stop faster, I bought them to eliminate brake fade due to overheating. At the time I bought them, the AZZC wilwood kit was the closest to stock total front caliper piston area of any BBK, and also happened to be the best price by far. I ended up getting a second set of rotors and pads for front and rear in addition to street rotors and pads, all for approx $1700 or so. Unless StopTech, AP or some other reputable kit has changed their pricing, you simply cannot get a better deal than that.
"We pretended to work, and they pretended to pay us."
"Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery."
"When the people find that they can vote themselves money, that will herald the end of the republic."
"Government is not reason. It is not eloquent. It is force. Like fire, it is a dangerous servant and a fearful master."
"The last official act of any government is to loot the treasury."
END THE FED
....learn why, in 42 minutes