A little update thanks to our friends over at RealOEM.com - The exhaust diagram for the M340!
As you can see, there are no secondary cats or resonators shown, just the back box. With how it's shaped, a muffler delete (or small replacement mufflers) would be an easy swap for any muffler shop.
Now for the downpipes...does anyone know the accuracy of RealOEM diagrams? I pulled the diagrams for the f30 340i and g20 M340i and they look identical...thoughts?
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