Jet Performance scam?

[Reid Bishop]

I recently got a buddy interested in performance tuning GM engines.  He has
a 92 Isuzu Rodeo, with a GM 3.1 V6.  It uses a 1228838 ECU, and has the ANFK
calibration.

Back in '94, he had bought a 'performance' chip from Jet Performance
Products.  Today, we read his original EPROM, and found that the
'performance' EPROM had the SAME IDENTICAL IMAGE on it as was on the
original factory chip!

What gives?  Did Jet somehow 'hide' their calibration (I don't see how this
is possible on a 2732 EPROM), or did they just plain scam him for $120?
BTW- he did not receive a CALPAK- this is not a removeable chip on the ISUZU
'8838.



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