Straight pipes result in seriously loud exhaust noises, but in the right situations, they could reap benefits when it comes ...

Modern medium- and heavy-duty trucks have sophisticated exhaust aftertreatment systems that can include a diesel oxidation catalyst (DOC), diesel particulate filter (DPF) and selective catalytic ...

Straight-piping promises raw sound and a shot of performance, but it also drags you into a thicket of legal, financial, and ...

Diesel has had a rough go of it during the last few years, but an increasingly commonplace technology is working to change the fuel's image and make diesel vehicles viable for the future. Kyle Hyatt ...

We've all heard the talk. It seems to run the gamut from, "Dude--headers are worth 100 hp," to the naysayers who snivel "Headers? They aren't worth the trouble." The truth is actually somewhere in the ...