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SST chip?

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91_4g63t

Proven Member
34
0
Nov 14, 2013
peyton, Colorado
I just picked up 92 gsx and found this chip in wrapped up. Im not the greatest with this kind of stuff. What is this for? I know the ecu but what does it do for the ecu? Its a SST 27sf256. I looked online but nothing describes what it does. Thanks.
 
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