Need help with unknown rpo codes
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Joined: Nov 2003
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From: surrey b.c. canada
Car: 89 Iroc
Engine: lb9
Transmission: wc t-5
Axle/Gears: 10 bolt 3.08 posi
Need help with unknown rpo codes
i did a search of all my rpo codes and the list was missing E92,9B4,X05,Z31, and 7UX . Anyone have any ideas as i'm curious what they are
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