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 ...

Performance Diesel Inc. (PDI) recently launched its Big Boss Tuner HD, a hand-held tuner designed for fast and easy installation that will typically deliver a 10 to 15 percent increase in horsepower ...

It's still illegal to violate the Clean Air Act, but now the worst that can happen is a fine.

The Justice Department says it will no longer pursue criminal charges for removing emissions controls from diesel vehicles.

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 ...

The Department of Justice says it will no longer seek criminal charges tied specifically to tampering with a vehicle’s ...

Gorilla Performance, or GDP Tuning LLC to use its legal name, and its owner Barry Pierce pleaded guilty to criminal charges over the sale and distribution of devices designed to defeat emissions ...

EPA Is Hunting America's Largest Tuning Companies What Cobb’s Emissions Lockout Means for Tuner Cars You Should Option the Diesel in Your New Suburban The EPA had previously issued Spartan Diesel ...