Government agencies and car manufacturers have worked to reduce the emissions and harmful gases in our air over the last few decades. Automakers downsized car engines and pushed EVs, while the ...

A delete kit is an OEM amendment package that removes or turns off emissions-associated components in a diesel engine. The ...

In addition to indicating a possible problem, smoke from the tailpipe means dirty emissions. Most states and some municipalities mandate periodic tailpipe-emissions testing. If your car is emitting ...

You roll up to a stop sign and your chest tightens with dread. Whenever you accelerate, your engine sputters, backfires, and in general sounds horrible. Plus your car smells awful. All of these ...