New 400% Over Injector

Features:

• 400% over stock fuel flow
• Ideal for high-performance competition builds
• Precision-matched to flow within 1%
• Advanced EDM and flow honing processes
• Built and tested on in-house equipment
• Includes new copper washers and O-rings
• Each injector tested at multiple calibration points
• Custom tuning required for proper operation
• Internal mods for accurate fuel delivery
• Detailed test sheet included with each set
• Nozzles undergo six-stage quality control
• Sold indivudally

Brand New 400% Over Injector for Early-Model 6.7L Cummins

If you're chasing podium-level performance with your 6.7L Cummins, the Exergy 400% Over Injector is the kind of fuel upgrade that doesn’t mess around. Built for serious competition trucks running well beyond factory limits, this injector isn’t just modified—it’s been meticulously engineered to deliver precision fueling under the most demanding conditions. At 400% over stock, these injectors are designed to support huge horsepower builds. That kind of flow requires serious attention to detail, and Exergy delivers by using in-house EDM (Electrical Discharge Machining) and abrasive flow honing to enlarge and perfect each nozzle. But it’s not just about size—these nozzles are matched to flow within 1%, ensuring your cylinders stay balanced and your engine runs clean and strong under pressure.

Tested for Reliability and Durability

Each injector is tested at multiple calibration points, and Exergy includes a detailed flow sheet so you know exactly what you're getting. They've also made internal modifications to maintain proper rate shape—especially important when you're pushing past 250% over. These changes are key to keeping things smooth at idle and precise during pilot injection, which is why custom tuning is a must to unlock the full potential of these injectors. The kit includes new O-rings and copper washers, so you’re set up for a clean, leak-free install. And like all Exergy products, these are built and tested on specialized, in-house equipment by a team that’s been at the forefront of common rail fuel system innovation from day one.

Fits: 2007.5, 2008, 2009, 2010, 2011, 2012 Ram 6.7L Cummins

Application Note: For injector sizing please contact us for more information. Core $150.00 each