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Supertrapp and Kerker are now owned and operated as a single company. They design and manufacture exhausts for Harley Davidson, Metric Street Bikes, Off Road Bikes, and ATVs.
A
signature feature of SuperTrapp exhaust systems is the diffuser disc
technology, created and patented for the XDUSOR, the first motorcycle
exhaust product sold by Moller in 1971. This technology allows the
rider to adapt their bike, or ATV, to a specific riding environment.
This is accomplished through a series of discs with a precisely aligned
diameter that form the exhaust outlet. By adding or subtracting discs,
the rider can tune the powerband and sound of their machine in just a
few minutes with basic hand tools.
Removing
discs decreases the exhaust opening and increases backpressure. This
effectively decreases the powerband to create more low-end torque. It
also decreases exhaust tone and enriches carburetion.
Adding
discs increases the exhaust outlet and decreases back pressure. This
widens the powerband at the top end. It also increases exhaust tone and
leans out carburetion.
All SuperTrapp and Kerker tunable systems
come with installation instructions that indicate the recommended
number of discs for each application.
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