The contenders for the title of fastest street-driven diesel truck gathered once again in Colorado for the 2015 Diesel Power Challenge in a grueling test of reliability, endurance and performance, and that’s just for the trucks.The contenders for the title of fastest street-driven diesel truck gathered once again in Colorado for the 2015 Diesel Power Challenge in a grueling test of reliability, endurance and performance, and that’s just for the trucks. Once again, Colorado played host to the annual event, with ATS Diesel Performance giving use of its dynamometer to measure the trucks’ prodigious output. This year’s group of competitors hail from all over the U.S. and Canada, with each of the three camps well-represented with high-powered specimens of Power Stroke, Duramax, and Cummins engines.

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Photo Gallery: 2015 Diesel Power Challenge Day 1: Dyno Day

Photo Gallery: 2015 Diesel Power Challenge Day 1: Dyno Day



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