N11 ✓ Factory-verified

Chevrolet · Regular Production Option

Off Road Exhaust System

Years 1963–79, 2005–09 Models 4 Factory citations 9

Query this via API →

Also described as Off-Road Exhaust SystemOff road service exhaustTailpipe, extension, single

Also documented for BuickPontiac

Documented applications

Corvette (C1 / C2) →

• 1963 ● Confirmed

  $37.70; count n/a

• 1964 ✓ Factory-verified

  $37.70; 1,953 built

  ⛭ GM Heritage factory kit — 1964 Chevrolet Corvette, p.17.
• 1965 ✓ Factory-verified

  $37.70; 2,468 built

  ⛭ GM Heritage factory kit — 1965 Chevrolet Corvette, p.14.
• 1966 ✓ Factory-verified

  $36.90; 2,795 built

  ⛭ GM Heritage factory kit — 1966 Chevrolet Corvette, p.14.
• 1967 ● Confirmed

  $36.90; 2,326 built

Corvette (C3) →

• 1968 ✓ Factory-verified

  $36.90; 4,695 built

  ⛭ GM Heritage factory kit — 1968 Chevrolet Corvette, p.7.

Impala / Full-Size →

• 1963–70s (varies) ◑ Single-source

Cobalt — Delta (2005–2010) →

• 2005–2009 ✓ Factory-verified
  ⛭ GM factory document — 2005 chevrolet cobalt rpo code list, p.1.

  ⛭ GM factory document — 2006 chevrolet cobalt rpo code list, p.1.

  ⛭ GM factory document — 2007 chevrolet cobalt rpo code list, p.1.

  ⛭ GM factory document — 2008 chevrolet cobalt rpo code list, p.1.

  ⛭ GM factory document — 2009 chevrolet cobalt rpo code list, p.1.

Related codes · mentioned in these notes

468795

This page aggregates every documented appearance of N11 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.