Dyno-Pro Inc., Denver's Premier Horsepower Testing Facility, has been testing performance vehicles on a Dyno-Jet© 248c since January of 1997. In this nearly a decade of dyno testing, we have compiled an extensive list of dyno results from Colorado's fastest street legal vehicles. For your (competitive) enjoyment we have ranked Colorado's fastest cars by classes in order by highest horsepower. To check out these machines and view the dyno-graphs, please visit our "Rankings" page.

Does your car have what it takes to make the Mile-High Horsepower Rankings? Find out! To enter you must perform a baseline test on your car at Dyno-Pro, Inc. If your car breaks into the Top Ranking of your car's class you will be posted on the MHHR List!