Model conversion, Formula

Years 1984, 1998–00 Models 2 Factory citations 2

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Also described as High mileage coupe

Documented applications

Fiero (1984–1988)

1984 Single-source

1984 from the OSG; the GM-wide lists reuse WS9 for a Formula model conversion

Firebird — Fourth generation (1993–2002)

1998–2000 Factory-verified

GM factory document — 1998 pontiac firebird rpo code list, p.1.
GM factory document — 2000 pontiac firebird rpo code list, p.1.

This page aggregates every documented appearance of WS9 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.