Fabspeed Muffler Bypass with Turndown for Porsche 911 SC/Carrera (1976–1989)

SKU: FS.POR.911.MB

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Product details

This Fabspeed pipe replaces the large rear muffler on the listed Porsche 911 SC/Carrera exhaust with a direct outlet. A slip-on 90-degree turndown allows the outlet direction to be adjusted, but the basic system remains a loud muffler-delete arrangement. Fort Washington, Pennsylvania, is home to Fabspeed Motorsport. The company engineers sports-car exhaust systems, air intakes and ECU tuning, including Porsche applications, with product development involving dyno, road and racetrack evaluation.

Technical Details

  • Manufacturer part number: FS.POR.911.MB.
  • 14–16-gauge mandrel-bent T304 stainless-steel construction.
  • Includes outlet pipe, clamp and adjustable 90-degree turndown.
  • Manufacturer-reported weight reduction: 18–20 lb.
  • Connects to the matching original catalyst, Sport Cat or European pre-muffler section.
  • Covered by the Fabspeed Lifetime Warranty, subject to its terms and exclusions.

Installation Resources

Videos

Fitment & Compatibility

Vehicle applications
Years Make Model / chassis Version / application Fitment notes
1976–1989 Porsche 911 SC / Carrera Matching 3.0L SC or 3.2L Carrera exhaust arrangement Confirm the intermediate exhaust section and sensor equipment. Check applicable sound limits.

For the listed 1976–1989 Porsche 911 3.0L SC and 3.2L Carrera exhaust arrangements. Confirm the installed intermediate section and sensor equipment. Check local and venue noise limits; the turndown changes direction rather than providing a full muffler.

PMB Performance brings over 20 years of Porsche parts experience to your order. Send us your VIN and details of the installed system if you need help matching this component.