M&K EXHAUST manufactures handcrafted stainless steel mufflers for your vintage, mid, or late model Porsche. M&K Exhaust mufflers are simply the highest quality muffler available on the market today.

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.

M&K Exhaust mufflers are designed to create a scavenge within the shell of the muffler to draw the exhaust out of the engine as quickly as possible.

M&K Exhaust mufflers are also the lightest mufflers on the market weighing only 14lbs. They beat the nearest competitor by 6lbs and an OEM muffler by 10-15lbs.
This weight savings translates into effective horsepower much like stripping out the interior, or using carbon fiber panels.

M&K Exhaust has a number of in-stock, bolt on models ready to go for early, mid, and late model 911's (up to 1989). Late model setups are available in either dual or single inlet configurations.

We also carry mufflers for 914-6's.

Should you require custom design and fabrication services, M&K Exhaust can provide that too.