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There seems to be a lot of assumptions on this thread. You CAN wire a MSD 2-Step into an Auto car. You can't do it on the brake pedal itself. You have to go to a switched 12v source like the clutch switch on the manuals. I suggest using the 3rd brake light wire from the BCM. It's in the black plug and is a white wire. There are 2 in there so it's best to test them with a multimeter. Tap the wire and plug it into the 12v white wire on the MSD 2Step. You don't have to use them with a trans brake at all. I don't recommend using them with a factory torque converter as you can't stall them very high and makes it pretty much moot. I use it to activate the methanol kit I have set up through a WOT switch on the gas pedal. Helps lower my IAT's before launching and then of course through the trip down the track. It's an NA car. 3800 rpm stall.
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