With a tunable sound, good looks and a reduction in backpressure, the two-into-one SuperTrapp system has many advantages over a split exhaust. It's also easy to install. Any Harley owner worth his or ...
The following is a letter that was sent to HOT ROD by SuperTrapp, concerning the "Muffler Shootout" story in our January '92 issue. While reading "Merrie Melodies" in the January issue, I was ...
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