So all them thousands of post of people claiming it's better to do it. Guessing they are daft to? In a word yes. Its also illegal since its a modification to the homogated emmision kit fitted when ...

Modern internal combustion engines — including those that run on diesel fuel — require a lot of special parts and systems to prevent dumping excess emissions into the atmosphere. Not only are those ...

We earn commissions from purchases you make using links in our articles. Learn more. Despite recent advancements in environmentally conscious electrified vehicles, most of the cars and trucks we drive ...

A look into the exhaust gas recirculation, or EGR, valve - an important piece of the automotive emissions system.

Two critical elements that need to be checked out at 100,000 miles are the EGR valve and the DPF. Hasten says to run a computerized flow test on the DPF filter tol show if the filter in the exhaust ...