- 1994 Factory-verified
the 1992 and 1993 pages print NCS, so those years are not claimed; 1991 is not claimed: the page that prints it (1991 p.73) carries no readable model-year field
GM Heritage factory kit — 1994 Chevrolet Lumina, p.42.
NC5 Factory-verified
Also described as Exhaust system, dual vertical tailpipes
Also documented for Pontiac
Documented applications
- 1995–1999 Factory-verified
The 1995–1997 kit mass sheets word it dual vertical tail pipes without chrome; the 1998–1999 lists print "Tailpipes, Chrome".
GM Heritage factory kit — 1995 Chevrolet Lumina, p.53.GM Heritage factory kit — 1996 Chevrolet Lumina, p.104.GM Heritage factory kit — 1997 Chevrolet Lumina, p.70.GM Heritage factory kit — 1998 Chevrolet Lumina, p.43.
- 1995–1999 Factory-verified
The 1998 and 1999 lists add "Chrome"; the weight sheets word it "Exhaust-Dual Vert Tail Pipes".
GM Heritage factory kit — 1995 Chevrolet Monte Carlo, p.72.GM Heritage factory kit — 1996 Chevrolet Monte Carlo, p.78.GM Heritage factory kit — 1997 Chevrolet Monte Carlo, p.92.
This page aggregates every documented appearance of NC5 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.