History / Originality Got a question about 1982-1992 Camaro or Firebird history? Have a question about original parts, options, RPO codes, when something was available, or how to document your car? Those questions, answers, and much more!

RPO Code Help

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Old Sep 13, 2008 | 06:04 PM
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Duke1822's Avatar
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From: Toledo,OH
Car: 1987 Pontiac Firebird Formula
Engine: LG4 4BBL
Transmission: BorgWarner T-5
Axle/Gears: Saginaw 3.23 Open
RPO Code Help

The BY4 code the decoder says its for a I.P. name plate is this the performance suspension Badge or somthing my car no longer has?
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