Changing Air Cleaner and Pipes without ECM upgrade

Discussion in 'Engine, Fuel and Exhaust' started by JoeFL7, May 10, 2009.

  1. JoeFL7

    JoeFL7 New Member

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    I am getting conflicting information about the need to upgrade the ECM if I put an Arlen Ness Big Sucker and Rolling Thunder slip-ons. Some Tech articles state that the 2009 ECM can handle these changes. Additionally, my local dealer said that they don't do ECM "flashes" anymore, and that I would have to purchase a Race Tuner to upgrade my ECM. If anyone has any information, I would greatly appreciate it.
     
  2. glider

    glider Veteran Member

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  3. nester024

    nester024 Member

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    Glider, will the TFI increase the rev limiter like the dealer download will?
     
  4. glider

    glider Veteran Member

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    No but the TC engine will live much longer it it stays away from the rev limiter. In stock internal form the engine isn't producing any power at or near the limiter so why do it?