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KJL
08-15-2013, 09:10 PM
The chip mounted in the ECM box has "SST" on it. It is supposed to be a performance chip. Is there anyway to identify?
PhillipsLT5
08-16-2013, 07:01 AM
http://www.zr1specialist.com/HAT%20Web/presentations/Calibrations.pdf
KJL
08-16-2013, 10:05 AM
It appears I have a memory adapter from Moates.net that looks to have the stock GM BMCB 1620 9008 chip installed on the side and the SST chip on top. I guess I will just replace this with the Haibeck chip instead.
WVZR-1
08-16-2013, 10:15 AM
It appears I have a memory adapter from Moates.net that looks to have the stock GM BMCB 1620 9008 chip installed on the side and the SST chip on top. I guess I will just replace this with the Haibeck chip instead.

That "piggy-back" could have been used for several different reasons and yes you would just replace what's there with a new product from Marc.
Vetman
08-21-2013, 06:19 AM
Can I replace just the chip with Marc's or do I replace the whole ECM?
WVZR-1
08-21-2013, 07:15 AM
Can I replace just the chip with Marc's or do I replace the whole ECM?

All you need is Marc's PROM