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Thread: Supertrapp Slip On 3 Inch Mufflers:disc&tune

  1. #1
    TOMCENTRAL Guest

    Cool Supertrapp Slip On 3 Inch Mufflers:disc&tune

    I have a 08 Ultra that I am going to install a set of 3 inch DISC slip ons PART #628-78055.The bike has a stg 1 download,Hi FlowA/C,&tru duals.Should I run a even # of discs in each side or use more in the rite side since that pipe is longer?Will I need a after market dfo/tfi/fuelpak? I have run ST & ST/2:1megs for years & love em.Regards,Tom
    Last edited by TOMCENTRAL; 11-11-2007 at 04:47 AM.

  2. #2
    bschultz Guest

    Default

    Quote Originally Posted by TOMCENTRAL View Post
    I have a 08 Ultra that I am going to install a set of 3 inch DISC slip ons PART #628-78055.The bike has a stg 1 download,Hi FlowA/C,&tru duals.Should I run a even # of discs in each side or use more in the rite side since that pipe is longer?Will I need a after market dfo/tfi/fuelpak? I have run ST & ST/2:1megs for years & love em.Regards,Tom
    The pipes come with 12 discs per muffler and I would install all 12 discs in each if you are running "true duals w/no cross-over". Our testing found the new "closed loop" FI is pretty accomodating. An additional 6 or 12 pack of discs may be needed for additional flow/tuning.
    My apologies for the late response.

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