NB6 ✓ Factory-verified

Pontiac · Regular Production Option

Emission system, California, Tier 1

Years 1998 Models 2 Factory citations 2

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Also documented for BuickCadillacChevroletGMCOldsmobile

Documented applications

Bonneville — H-body, 9th gen (1992–1999) →

• 1998 ✓ Factory-verified internal

  Bonneville Club agrees.

  ⛭ GM factory document — 1998 pontiac bonneville rpo code list, p.1.

Grand Prix — W-body, 7th gen (1997–2003) →

• 1998 ✓ Factory-verified internal
  ⛭ GM factory document — 1998 pontiac grand prix rpo code list, p.1.

This page aggregates every documented appearance of NB6 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.