Re: Aries hi-performance muffler application.
I have watched many Harleys get dyno tuned. Straight pipes are great for wide open high rpm but nothing else. You can easily see how some back pressure will increase your torque and HP in the usable rpm range. You might lose a few ponies where you never drive to gain more where you do.
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“The technique of infamy is to start two lies at once and get people arguing heatedly over which is true.” ~ Ezra Pound
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