Exergy

About Exergy Performance

When it comes to high-performance diesel fuel systems, few names carry as much weight as Exergy Performance. Founded on decades of hands-on experience in OE diesel fuel system development and manufacturing, Exergy approaches the performance aftermarket with an engineering depth that is rarely matched. As the brand puts it, their background in original-equipment development means they already know what it takes to hit a performance target — and how to verify the results.

That philosophy shows up in every product Exergy builds. Rather than simply rebranding off-the-shelf components, Exergy designs and validates each part to meet strict flow and pressure specifications. The result is a catalog of diesel fuel system hardware trusted by everyone from weekend tow-rig owners to serious sled-pull and drag-race competitors running Cummins, Duramax, and Power Stroke platforms.

Precision Pumping Solutions

At the heart of any common-rail diesel is its high-pressure pump. Exergy's lineup of fuel injection pumps spans everything from upgraded stock-displacement units to stroker builds — including their well-known Sportsman CP3 series and the Scorpion CP4.2 variants — giving builders a reliable path to more fueling capacity without sacrificing street manners. For late-model trucks equipped with the CP4.2 architecture, Exergy also offers a dedicated range of direct injection high pressure fuel pumps, including their Scorpion Improved Stock unit, which features a fine-mesh internal screen designed to protect the rest of the fuel system in the event of a pump failure.

Fuel System Control & Regulation

Consistent rail pressure is critical to clean combustion and accurate tuning. Exergy's fuel injection pressure regulators — including their upgraded inlet metering valves — are engineered to hold commanded pressure steady under the increased demands of larger injectors and aggressive tunes, giving calibrators a reliable baseline to work from. Every regulator is built with the same attention to flow verification that defines the entire Exergy lineup.

Lines, Fittings & Plumbing

A fuel system is only as strong as its weakest connection. That's why Exergy rounds out their catalog with supporting hardware like diesel fuel injector lines and fuel hose fittings — components that are often overlooked during a build but are essential for leak-free, long-lasting performance. Replacing these items at the same time as injectors or pumps is considered best practice by diesel technicians, and Exergy supplies the hardware to do it right.

Why Choose Exergy Performance?

• Deep OE diesel engineering background applied to aftermarket performance
• Flow-verified components for repeatable, documented fueling results
• Coverage for Cummins, Duramax (LB7 through current), and Power Stroke platforms
• Product range spans mild street builds to all-out competition applications
• Each part is designed to complement the rest of the Exergy fuel system ecosystem

Whether you are chasing a towing horsepower record or simply want a more reliable, better-breathing fuel system on your daily driver, Exergy Performance offers the engineering pedigree and product depth to get the job done correctly.