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Thread: Harness question
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07-28-2013 #4
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- Join Date
- Oct 2011
- Posts
- 467
PSI Conversions harness here. $549 and well made. Call PSI and ask them about the GMPP.
The PSI harness can be ordered lengthened to locate your ECM behind the dash. It incorporates a 3 wire hookup to the car.
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