Despite the recent news that the Environmental Protection Agency (EPA) no longer lists emissions defeat devices as a top priority, there’s still no two ways about it: Tampering with a tune to defeat ...

Yet another tuning shop has been fined as part of the U.S. Environmental Protection Agency’s ongoing war on diesel emissions defeat devices. At the receiving end of the punishment this time around is ...

One heavy-duty engine choice transformed a basic pickup into a platform that significantly reshaped diesel performance and ...

Diesel performance culture has expanded from niche hobbyists to a global aftermarket industry, with tuning, turbo upgrades, and airflow mods unlocking significant untapped power. Advances like ECM ...

Mainstream diesel performance hit a home run when Dodge introduced the Cummins-powered Dodge Ram in 1989. In stock trim, the trucks were reliable yet underpowered, but it wasn’t long before ...

Two Michigan-based diesel tuning companies have just been hit with $10 million worth of civil penalties for their role in the manufacture, sale, and distribution of diesel emissions defeat devices.