New - SC/Carrera Track MufflerFor OEM

 GT3 (1 In 2 Out)
MKM73 Kit
 GT3 (1 In 2 Out) Installed

M&K Specialties Stainless Performance Exhaust

GT3 (1 In 1 Out)

Fits year

78 - 89 911SC or Carrera
Unpolished stainless steel

Requires valance modification
Call for custom fiberglass valance

Specify SC or Carrera when ordering


Make, model, year of car


  1. Shipment to US 48 states is free
  2. Add $50 for shipment to international destinations, Alaska, Hawaii and    Puerto Rico

1 in 2 out Carrera with hardware package

All M&K Exhaust mufflers are produced utilizing 321 stainless steel. 321 stainless steel is used in the aviation industry for it's higher quality alloys which withstand high heat applications.

M&K Exhaust is the only muffler manufacturer to offer 321 stainless exhaust systems for Porsche automobiles. Most other manufacturers use lower quality 304 stainless. 304 is not as durable as 321 in handling the constant heat cycling exposure produced during the lifetime of an automobile. 304 is also not as resilient as 321 in withstanding the acids given off by an internal combustion engine. If you are looking for the best a lifetime product can offer, 321 stainless steel must be your choice.

All M&K stainless performance mufflers are shipped in raw form. Optional finishes are available at an additional cost.


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All M&K components come with 30 day no questions asked warranty and a 6-month warranty on Craftsmanship of the components. As many of our products end up on racing applications this will void all warranty at time of the installation. Please feel free to contact us with regards to damage of any unit as we can pro rate an exchange unit depending on circumstances

This entire site and its content is copyright protected. All images and content cannot be used without explicit agreement from M&K EXHAUST. Porsche, 911, 914, 914-6 and Carrera are registered trademarks of Porsche AG. All marks and logos are used for identification purposes only. M&K Exhaust is not affiliated in any way with Porsche AG.