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 ...

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 ...

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 ...

20151023_atc_diesel_performance_tuners.mp3?orgId=1&topicId=1019&d=279&p=2&story=451116769&t=progseg&e=451098356&seg=14&ft=nprml&f=451116769 Listen • 4:39 20151023 ...

The last four years have been hell on certain corners of the automotive aftermarket. Companies went from making millions of ...