Sound Test Data

Find a legal muffler for your OHV

Sound Test Data for most manufacturers

Sound Testing Data from the California State Parks Off-Highway Motor Vehicle Recreation Division.

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Cambridge Hare Scrambles

The Cambridge Hare Scrambles is held at the Norsemen owned property in Cambridge, MN which includes a woods course,  moto track and a TT track. May 5, 2013!

Mora Enduro

The Norsemen Motorcycle Club has been sponsoring the Mora Enduro in the Snake River State Forest for over 50 years! This Enduro is the only time you can ride the trails in this forest, don't miss it! July 27, 2013 for Youth Enduro and July 28, 2013 for the Main Enduro.

Woodland Mini Only Enduro

The Woodland Enduro is for youth riders only and also features the Candy Crozier Memorial Event. Check out the event page for all the details. July 20, 2013, Mark your calendar!

Dual Sport Adventure Ride

Come join us for the Dual Sport Adventure Ride through northeastern Minnesota and northwestern Wisconsin at the peak of the fall colors. September 28, 2013, you can't get any better than that!

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Over 50 years sponsoring quality events
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Sound Testing Data

The California State Parks Off-Highway Motor Vehicle Recreation Division has been testing sound emissions of motorcycles and ATV's for about a year. This information can be used to help enthusiasts find a muffler for their OHV that will comply with sound emission's standards. Only tests with a reading of 101 dBA or less less are included. The list is by make, model and year of the OHV tested.

Select the manufacturer of your OHV to link to the list for that manufacturer

ATK CZ Kawasaki Thunder
BBR E-Ton KTM TM
Bombardier Gas Gas LEM VOR
BSA Honda Maico Yamaha
Bultaco Husaberg Polaris
Cannondale Husqvarna Suzuki

This list is not intended to be an endorsement of any product, nor does it guarantee compliance if installed on your off-highway vehicle.

Not all mufflers will work the same on all OHV's. Since results vary with modifications, along with vehicle care and maintenance, there is no guarantee these mufflers will work on your particular OHV.

**Remember, the noise limits are not just enforced during events, there are laws in place now for riding on both private and public lands. Check the laws at the State and County levels before you ride.

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