One upgrade can get your 6.7 Cummins engine running cleaner and making more power. This must-have Ram upgrade is also on sale right now.
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Cummins vs. Duramax: Which Diesel Engine Is The Best
A popular argument in the heavy-duty pick-up truck segment - where big names like the Ford F-250 Super Duty and Chevrolet Silverado 2500HD do battle - is Cummins versus Duramax, and who reigns supreme ...
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