With over a million enthusiasts in Québec alone, the snowmobile is a highly-prized recreational vehicle. However, the standard snowmobile is a veritable threat to the environment as its two-stroke engine emits more hydrocarbons into the atmosphere in one hour that a car in a whole year. It was therefore with the intention, in the short-term, of successfully transforming the snowmobile into a more environment-friendly vehicle while maintaining the appeal and interest of its performance that a group of students from the École de technologie supérieure decided to launch the Quiets project. For the past two years, the team has been attempting to improve three of the vehicle’s aspects: noise, fuel consumption and emissions. By devising various simple and low-cost technological processes, the members of the Quiets project even obtained admirable results at the 2004 Clean Snowmobile Challenge, a major competition taking place in the United States: they won the acceleration and handling event, came in second for the modification cost and were third in regard to noise. Moreover, by taking part in exhibitions and giving demonstrations, Quiets not only attracted the attention of a large number of enthusiasts, it also aroused the interest of people in the snowmobile industry.