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Do I need a New PCM or one already programmed?

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Old 12-27-2010, 10:08 AM
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Default Do I need a New PCM or one already programmed?

I'm building a 4th gen motor LS Notchback Mustang. Do I use the pull out PCM or get a brand new one? Which is easier to tune? Id assume the one already programmed that came out of the donor vehicle.

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Old 12-27-2010, 04:02 PM
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The PCM from the donor vehicle.
Old 12-27-2010, 06:01 PM
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