Why performance air intakes might be a great, low-cost investment if you’re looking for more power. Why are aftermarket air intake systems so popular? A related question might be, why replace the ...

When starting out on the path to customization, the first thing anyone wants to do to their truck is replace the factory air filter and intake tube with something that works better and looks cooler.

Helping your engine breathe with an updated intake is a simple way to make performance gains, and Spelab has multiple options that will get your 6.7L Cummins diesel breathing easy.But what’s really ...

Most Chevy truck enthusiasts know that improving the flow of air into the engine and reducing backpressure are sure ways to make some power. But believe it or not, this process is not as simple as it ...

Increasingly stringent diesel engine exhaust emissions regulations have, over the past 20 years, reduced output of nitrogen oxides (NOx) by 95% and particulate emissions by 90% in heavy trucks. These ...

The introduction of the Gen III and IV LS and the Gen V LT V-8s are some of the greatest innovations for our hobby. They're a simple drop-in engine swap because virtually everything imaginable is ...

At one time the most obvious component on many "hopped up" cars and trucks was a hood scoop. The reasons given for using them included the ram air effect, a cooler air source, or they just looked ...

Diesel engines typically have beefier, more robust cooling components to keep the motor cool in varying conditions. Modern diesels operate at a higher compression ratio, which makes their combustion ...