Sponsored Content. We may receive a commission on purchases made from links. The 6.7-liter Cummins turbodiesel inline-6 is one of the most widely used diesel engines out there. It has been fitted to ...

Cummins engines used in Ram Heavy-duty trucks are famous for making insane performance gains with simple upgrades. Road-going truck owners just need to toe the line and keep their modified diesels ...

Giving any engine's air intake and exhaust tract a clearer entry (or exit) path is key to making more horsepower. In fact, it's very basic knowledge that any vehicle's air intake and exhaust system ...

As much as we like the 5.9L Cummins powerplant, the stock exhaust manifold is constrictive and contorted, interfering with the flow of gases to the turbo and downpipe. That, in turn, can produce the ...

The engines that power the vehicles we drive are exceptional machines. They're capable of generating insane amounts of power in a relatively confined space, and they can generally be expected to ...

Cummins was founded by Clessie Cummins in 1919 and has been building reliable diesel engines for more than 100 years. Cummins engines are used in large trucks, buses, and leisure vehicles, as well as ...