Cars started using catalytic converters in 1975, after Congress in 1970 created the Environmental Protection Agency in 1970, ...

This BMW G82 M4 runs an Akrapovic Race exhaust with OPF and catalytic converters removed, delivering an aggressive and raw ...

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

A 2023 Chevrolet Camaro ZL1 Coupe with a brief theft history and a longer list of performance upgrades is now headed for a ...

Car mods that are illegal in many states include straight piping your exhaust, using muffler cutouts or bypass valves, or ...

This Nissan GT-R has more-than-decent mileage for such a thing, though it has spent a lot of time at the racetrack. Do you ...

I turned 37 this year and, according to Armenia’s life expectancy tables, that places me on the wrong side of midlife.  I ...

A Geochemist’s research on the age of the planet eventually brought the leaded gasoline era to a halt, and ended the ...

Air pollution in Bangladesh is among the most severe in the world. The largest health harm is caused by very small particles — those with a diameter of 2.5 micrometres or less (scientifically known as ...

The public and politicians in both parties saw the urgency 50 years ago and enacted the Clean Air Act, Clean Water Act and ...

The public and politicians in both parties saw the urgency 50 years ago and enacted the Clean Air Act, Clean Water Act and ...