The 6.7L Cummins engine has been around for almost two decades. Here's how much horsepower the stock versions of the 6.7 have ...
Cummins has put together an upgraded version of its 6.7-liter engine turbo diesel for RAM trucks - here's how much power this ...
For Cummins truck owners, engine dependability and performance are crucial. The EGR system along with other emissions control maintenance systems comes with performance and maintenance problems.