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Thread: Cooters EBR exhaust test with dB!

  1. #1
    Senior Member Cooter's Avatar
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    Cooters EBR exhaust test with dB!

    I had some fun with wrenches and thought I'd share:

    https://www.youtube.com/watch?v=a2lqBS2gSmk

    The victims:


    (Spoiler) The winner:
    Last edited by Cooter; 04-17-2018 at 04:30 AM.

  2. #2
    Senior Member Cooter's Avatar
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    Ok that was fun... so heres the info
    I did all the testing with the most appropriate ECM, in the same location using the Niosh iPhone app 6' from the tip, in a 4000' bldg, warm engine.
    Idle, 5k and 7k.

    Stock resonator 80dB, 94dB, 100dB (Quiet. Too quiet and rattly)
    Stock muffler with 2.5" tips on the OD of the muffler outlets 88dB, 97dB, 106dB (really nice deep tone and mellow volume)
    Open headers (LOUD) Probably maxed the 'meter' and the snow falling is insulation from the roof. 102db, 117dB, 124dB! (The dead are coming to complain about the noise)
    APH RACE Y-pipe only 100dB, 111dB, 118dB (Meaty)
    APH RACE y-pipe and muffler with single tip 90dB, 105dB, 110dB (Deep tone, and ok on the highway but your neighbors hate you. It's totally worth the performance increase though)

    On to the vids!
    Stock resonator:


    Tips:


    OPEN!! I SAID OOOPPPPEEENNN:
    Last edited by Cooter; 04-17-2018 at 04:45 AM.

  3. #3
    Senior Member Cooter's Avatar
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    APH RACE Y-pipe:


    APH RACE Y-pipe and muffler (single outlet)


    And more fun with the lights out:
    Last edited by Cooter; 04-17-2018 at 04:32 AM.

  4. #4
    Senior Member Cooter's Avatar
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    Anyone want to send me a Deans pipe or HMF, I'll take it!

  5. #5
    Senior Member Silverrider's Avatar
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    That is Great stuff thanks for posting and taking the time to test!!!!

  6. #6
    Senior Member MakingPAIN's Avatar
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    good post coots ma goots... i will trade ya my dean adams for the aph! for testing ya know



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