Dual exhaust (N-11 w/L-77, L-78; +L-66 in 1967)

Years 1966–67 Models 2

Also described as Dual exhaust (N-11 with L-66/L-77/L-78)

Documented applications

Cutlass / 4-4-2

1966–67 Confirmed

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Full-Size 88 / 98

1966–67 Confirmed

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This page aggregates every documented appearance of N-10 / N-11 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.