Miami Performance Inc

MPI N55 4" Downpipe 14+ BMW 135i 335i 435i M235i M2

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  • Regular price $219.95
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This are our ALL NEW 4" catless downpipe for the 2014+ N55 Engine Platform. Our 4" downpipe is made for the later model N55 engines which used the larger exhaust housing. This is all vehicles with a production date of 08/2013 and newer. 135i, M135i, M235i, M2, 335i, 435i.

Catless free flowing downpipes are one of the most important and affordable modifications for chasing power. Made of 304 Stainless steel and with seamless transitions, our catless downpipe removes the catalytic converter, reducing backpressure, improving spool, turbo efficiency, increase in power and a more aggressive exhaust note. This truly is most cost efficient power upgrade available!

  • +20HP +25TQ
  • CAD/CAM designed cast flange for seamless flange to pipe transition.
  • Tig welded mandrel bent 304 grade stainless steel.
  • Smooth radius bends to decrease turbulence and increase flow


Not CARB Legal! Not For Sale In the State of California.

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