Modifying cars for improved performance and style has always been a hobby with a bit of a rebellious streak. In the "good old days," it was pretty common for people to gut their car's catalytic ...

What makes power in an engine? Fundamentally, it's all about air, fuel, and a well-timed spark. But if it's the stuff going into an engine that really counts, why is exhaust system design so critical?

Several times a year it seems we hear of shop owners and even some truck owners who have been caught out of emissions compliance, whether gutting the hardware of the internal emissions-system ...

What happens when you publish research about car emissions that manages to piss off not just ICE owners but those using electric vehicles? Well, people have a lot of feelings. In 2020, UK independent ...

Pitkin County has renewed its vehicle emissions testing program for an indefinite period of time.The county commissioners endorsed renewal of the program, which has been in effect since 1989, last ...

There's a lot going on inside your vehicle at any given time, whether you're idling at a red light or driving at freeway speeds. Much of this activity involves chemical reactions that — while ...

Bosch provided flights to Frankfurt and three nights' accommodation for this trip to the Bosch Mobility Experience. But the fallout from the scandal has been more wide-ranging, as the artificial ...