Emission system, California, ULEV

Years 1963–79, 2000–09 Models 14 Factory citations 40

Also described as Chambered dual exhaustChambered Pipe Exhaust SystemChambered exhaust systemEmission system, California ULEVEmissions, California ULEV

Also documented for Buick Cadillac GMC Oldsmobile Pontiac

Documented applications

Camaro

1969 Factory-verified

Z28/SS396; ended May 69

GM Heritage factory kit — 1969 Chevrolet Camaro, p.182.

Chevelle / El Camino

1969 Factory-verified

GM Heritage factory kit — 1969 Chevrolet Chevelle, p.12.
GM Heritage factory kit — 1969 Chevrolet El Camino, p.55.

Impala / Full-Size

1963–70s (varies) Confirmed

Astro — Second generation (1995–2005)

2004 Factory-verified internal

GM factory document — 2004 chevrolet astro 2wd rpo code list, p.1.

Avalanche — GMT800 (2002–2006)

2002–2003 Factory-verified internal

GM factory document — 2002 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet avalanche 2wd rpo code list, p.1.

Express — GMT610 (2003–2027)

2003–2007 Factory-verified internal

; the 2008–2009 lists and the 2015–2016 Upfitter manuals still print the code with a note not to use it after the 2007 model year for domestic passenger cars and light-duty trucks, so later years are not claimed

GM factory document — 2003 chevrolet express rpo code list, p.1.
GM factory document — 2004 chevrolet express awd rpo code list, p.1.
GM factory document — 2005 chevrolet express awd rpo code list, p.1.
GM factory document — 2006 chevrolet express awd rpo code list, p.1.
GM factory document — 2007 chevrolet express rpo code list, p.1.

Impala — eighth generation (2000–2005)

2000–2002 Factory-verified internal

GM factory document — 2000 chevrolet impala rpo code list, p.1.
GM factory document — 2001 chevrolet impala rpo code list, p.1.
GM factory document — 2002 chevrolet impala rpo code list, p.1.
GM Heritage factory kit — 2000 Chevrolet Impala, p.43.
GM Heritage factory kit — 2001 Chevrolet Impala, p.34.

Monte Carlo — sixth generation (2000–2007)

2000–2002 Factory-verified internal

GM factory document — 2000 chevrolet monte carlo rpo code list, p.1.
GM factory document — 2001 chevrolet monte carlo rpo code list, p.1.
GM factory document — 2002 chevrolet monte carlo rpo code list, p.1.

Silverado — GMT800 (1999–2007)

2003–2007 Factory-verified internal

2005–2007: heavy-duty models only (GM’s HD list)

GM factory document — 2003 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet silverado classic 2wd rpo code list, p.1.
GM Heritage factory kit — 2003 Chevrolet Silverado 1500, p.47.
GM Heritage factory kit — 2007 Chevrolet Silverado, p.60.

Silverado HD — GMT800 (2001–2007)

2003–2007 Factory-verified internal

GM factory document — 2003 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet silverado classic 2wd rpo code list, p.1.

Silverado HD — GMT900 (2007–2014)

2007–2009 Factory-verified internal

the lists label it not for use after the 2007 model year on light-duty trucks; the label covers light duty only and the 2008 and 2009 heavy-duty halves still print it

GM factory document — 2007 chevrolet silverado 2wd rpo code list, p.1.
GM factory document — 2008 chevrolet silverado 2wd rpo code list, p.1.
GM factory document — 2009 chevrolet silverado 2wd rpo code list, p.1.

Suburban — GMT800 (2000–2006)

2002–2003 Factory-verified internal

GM factory document — 2002 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet chevy suburban 2wd rpo code list, p.1.
GM Heritage factory kit — 2003 Chevrolet Suburban, p.39.

Tahoe — GMT800 (2000–2006)

2002–2003 Factory-verified internal

GM factory document — 2002 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet tahoe 2wd rpo code list, p.1.
GM Heritage factory kit — 2002 Chevrolet Tahoe, p.30.
GM Heritage factory kit — 2003 Chevrolet Tahoe, p.32.

Venture — U-body minivan (1997–2005)

2001, 2002 Factory-verified internal

GM factory document — 2001 chevrolet venture ext rpo code list, p.1.
GM factory document — 2002 chevrolet venture ext rpo code list, p.1.

This page aggregates every documented appearance of NC8 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.