There is a limit to how much you can soup up your sled. The Upper Ottawa Valley OPP is reminding snowmobile owners that it is illegal to modify or change the exhaust on snowmobiles if the sled is being used on public trails. The reminder comes as area snowmobile trails begin to open for the season. Modified exhaust systems, often referred to as “cans” or “pipes”, can significantly increase the decibel level of the snowmachine. Police say the aftermarket components do not adequately suppress or muffle exhaust noise, and the increase in sound resonates across open areas, such as lakes and fields, disturbing people who live nearby. The Motorized Snow Vehicles Act states that modifying, altering, or changing the exhaust system on any snowmobile carries a fine of $110 and potential removal from the trail system. Local OPP and the East Region Snow Vehicle, All-Terrain Vehicle, Vessel Enforcement/Education Team, also known as “SAVE”, conduct patrols on snowmobile trails throughout the season to ensure compliance with the act.