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 ...

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 ...

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 ...

Parts suppliers, race shops and tuners alike have all found themselves in the crosshairs of an increasingly strict EPA thanks to the latest round of National Compliance Initiatives, which specifically ...

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 ...

A battle between the Department of Justice and an East Peoria, Illinois diesel performance company over aftermarket defeat devices is finally over. As a result of the settlement, the defendants will ...