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Thread: Details on 535i one muffler to two muffler transition

  1. #1
    Join Date
    Dec 2010
    Location
    Crestview,Florida Panhndl
    Posts
    139
    My Cars
    E60 535i M-Sport

    Details on 535i one muffler to two muffler transition

    “Details on 535i one muffler to two muffler transition”

    Bad title, didn’t know how else to put it.

    looking to find out details on when the oem system goes from one muffler to the dual mufflers. Rpm? Boost? Pedal input?

    Looking to redo my custom exhaust and I have an idea...

    thanks formany help!

    // Radar //
    2010 E60 535i N54 {sleeper}
    M-Sport, Alpine White w/Natural Brown Leather
    Coilovers, APEX Race Wheels
    Trebila-tuned motor, xHP Stage3 tranny tune,
    FBO+Meth FUN!!!

  2. #2
    Join Date
    Jun 2011
    Location
    Cornelius, NC
    Posts
    548
    My Cars
    09 535ix
    I did a rear muffler delete... No hp difference... Just sound. Not sure if that's what you're asking.

  3. #3
    Join Date
    Jun 2007
    Location
    Seneca, SC
    Posts
    364
    My Cars
    2007 750i BMW; 2003 Z4 3.0 BMW; 2002 Lexus LS430;
    It doesn't go from one muffler to two. During normal operation exhaust gases are routed through a section of the muffler and out one tail pipe. Under certain circumstances, a vacumn opens a flap in the mufller to allow gases to pass through both sections and out both pipes.

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