Each M&K muffler is produced utilizing 321 stainless
steel. This type of stainless is commonly used in the
aviation industry due to it's higher quality alloys
which withstand high heat applications. We are the only
manufacturer to offer 321 stainless exhaust systems
for Porsche automobiles.
Why 321 and not 304?
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. Over the years 304 will eventually deteriorate
and lose its strength and eventually need to be replaced.
If your looking for a muffler that truly will last a
lifetime then 321 stainless steel must be your choice.
What we do different.
M&K 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. This allows your
engine to breath better and create enough back pressure
to increase the performance of your engine.
Weight is always a burden.
The best way to improve a car's performance and balance
is decreasing the weight. The 911 has always been known
for it's tail-happy attitude. We all know this is due
to a large amount of weight at the very back of the
car. Porsche drivers are always looking for ways to
better their car's performance and handling by removing
weight. Yet the most commonly overlooked source of weight
is a factory Muffler.
When Porsche imported 911s into the US they had to adhere
to USA's strict sound requirements. In order to achieve
these requirements Porsche built multiple passages in
their factory mufflers that increased the weight tremendously.
Our Lightweight mufflers weigh close to 15 Pounds LESS
than a factory installed muffler. The average M&K
muffler tops the scale at a mere 14lbs, when some of
the factory mufflers weigh in OVER 30! We produce the
best quality best sounding and LIGHTEST mufflers on
We have a number of in-stock, bolt on models that are
ready to go for early, mid and late model 911s Up to
the 996! All of our mufflers are available in either
dual or single inlet configurations and outlet combinations.
We have in-stock 356, 912 and 914-6 configurations.
We also have a muffler refurbishment program. No other manufacture offers
such a wide range of services, solutions. Our reputation
is unmatched and so is our product.