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Do I need a PCM change

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Old 02-26-2004, 06:31 PM
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Default Do I need a PCM change

I am getting my gears changed from 3.23 to 4.10. I have a M6 and was wondering if I have to do anything to the computer. Some people have said yes, and some no. What do I need?
Old 02-26-2004, 06:39 PM
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You will have to edit the PCM if you want your speedometer to be correct.
Old 02-26-2004, 11:31 PM
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The cheapest way out of this is either a shop close that'll do a single perameter edit for ya, or SLP in the sponsor section>>>>>> sell speedo calibrators for new insalled gear sets.
Old 02-27-2004, 07:14 AM
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Hypertech can do it as well. But they are VERY limited on how much tweaking you can do to your car. They are expensive for what you get as well. $350.




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