The diesel tuning business has changed a lot in the last four years. The Environmental Protection Agency is scrutinizing everybody from huge engine manufacturers like Cummins to small tuner shops.

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 ...

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 ...

View post: I Drove The 2026 Infiniti QX80; Here’s My Honest Review A few days ago, the EPA announced that diesel emissions defeat devices were no longer its top priority, moving instead toward harsher ...

Let’s be frank for a moment and tell it as it is: not too many people in the market for an Alfa Romeo Giulia will go for the full-on Quadrifoglio for one too many reasons. In Europe, for example, the ...

When Banks Engineering unleashed its Big Hoss Bundle diesel performance packages for today's diesel pickups, it turned the diesel tuning world upside down with a systematic approach to safely ...

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 ...

Two Michigan-based diesel tuning companies are facing US$10 million worth of civil penalties for their part in the manufacture, sale, and distribution of diesel-emissions defeat devices, a huge strike ...