Original Equipment Muffler, 911 (1965–74)

The factory-fitted muffler for the early cars, from Porsche's original exhaust supplier — historic rather than current production.

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Published fitment
901 · See fitment notes (1965–1974)
Recorded availability
Discontinued. Confirm with the supplier.
Recorded price
No published price recorded

View supplier page ↗

Reported by a secondary source. Sources last accessed ; fitment is not independently verified.

ExhaustDiscontinuedReported by a secondary source

Manufacturing

ManufacturerLeistritz
Origin🇩🇪 Germany
Manufactured here
Leistritz, Germany.
ProcessFabricated / Welded
Additively manufacturedNo
MaterialStainless Steel 304L
NotesLeistritz sold its exhaust division to Faurecia in 1994 with ten-year naming rights, so anything sold as a new Leistritz Porsche system today is old stock, a later Faurecia-era part, or mislabelled. Worth knowing before paying an OEM premium.

Fitment

901All models (1965–1974)

Sources

  1. 911 Muffler 91111102500 Leistritz — MS Road Race, accessed 2026-08-17
  2. Leistritz AG — DieselNet, accessed 2026-08-17