General Motors option code

NB2

NB2: a General Motors factory option code reused for more than one part across 1987–1988 and 1 model — see the table for what it named each year, with installs and price where a source states them.

General Motors reused this code for more than one part over the years — read the "as named that year" column for what it meant on each row rather than assuming one meaning throughout.

1 model · 2 model years · 2 sources

Red 1987 Trans Am GTA with gold diamond-spoke wheels, side view at dusk in front of an industrial skyline
1987 Pontiac Firebird Trans Am GTA in red (1987 Pontiac brochure)

Every sourced appearance

Year Model As named that year Price Installs
1987 Pontiac Firebird and Trans Am California emission requirement RPO Unknown 1,827 Reported
1988 Pontiac Firebird and Trans Am California emissions (GTA) RPO Unknown 254 Reported

Every row traces to the source it links from on that model's own year page; this table only collects them in one place.