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Old 03-30-2013, 11:57 PM   #11
Mr pogo
Drives: 96 Imp SS, 13 Camaro 2SS AGM
Join Date: Dec 2012
Location: SoCal
Posts: 327
its been called a spid decal for I dunno how many years now.
as distinguished from the "build sheet" which used to be under a seat cushion cover depending on its age.
the codes have been used across gm brands and models, for instance the G80 code means limited slip option.
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