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exhaust engine mufflers

  1. Exhaust system help please!

    Engine
    I bought my 67 camaro with a 327 that has a very large cam. My "very young" cousin put a 3" pipe with racing flowmaster mufflers cut at the muffler down ward under the seats. My result was a very loud drone in the car obnoxious to myself and others. I know that loud is the way to go but this was...
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