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.

Cambridge Sprint Enduro Dual Sport Adventure Ride Mora Enduro Trollhaugen Hare Scrambles

Cambridge Sprint Enduro

Simply put, Sprint Enduro is individual off-road motorcycle racing, against the clock. May 5, 2019!


Picture grass track combined with some great trails, and you holding it wide open for 6-10 minutes trying to do a lap as quick as possible. This is an Enduro, so you're racing against the clock, not head-to-head against other riders.

MN300 Adventure Ride

The MN300 Adventure is a is a 2 day adventure ride through the Walker/Leech Lake area in northern MN. The route consists of two loops, each approximately 150 miles of great fall colors on dirt roads, paved roads and trails from Northern Lights Casino in Walker, MN, through many forest roads, snowmobile, and ATV trails in the area.

On-line REGISTRATION CLOSES 9/28/2019 or when 100 riders have registered.

Mora Enduro

The Norsemen Motorcycle Club has been sponsoring the Mora Enduro in the Snake River State Forest for over 60 years! This Enduro is the only time you can ride the trails in this forest, don't miss it! July 14, 2019 for the Main Enduro and a Youth Enduro July 13, 2019 paying Youth Cross Country Series points.

Trollhaugen Hare Scrambles

This Hare Scrambles is held at the Trollhaugen Outdoor Recreation Area in Dresser, WI. The course includes a woods course and  moto track. Don't miss out on the fun July 28, 2019!

Trollhaugen Memorial Race Track in Dresser, WI will be rocked for this legendary, once a year spectacle! The infamous Area 51 will give riders thrills and chills as they try to conquer the hills at the Troll. Four races for riders of every age, size and ability.

Cambridge Hare Scrambles Minnesota 300 Adventure Ride Mora Enduro TT Flat Track Trollhaugen Hare Scrambles
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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
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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