New 200% Over Injector with L5P Internal Modifications

Features:

• 200% over stock fuel flow capacity
• Built for high-performance and competition use
• Hydraulically flow matched within 1%
• Custom tuning required for optimal performance
• Precision nozzles made with micro EDM machining
• Undergoes six stages of quality control
• Tested at multiple calibration points
• Includes injector seal kit with O-rings
• Ideal for heavily modified L5P Duramax builds
• Made and tested on in-house equipment
• Built to order with approximate 2-week lead time

200% Over Injector for GM 6.6L Duramax

If you’ve already pushed your L5P Duramax beyond the basics and are hungry for even more power, the Exergy New 200% Over Injector is your next serious move. Built for aggressive performance applications, whether you’re chasing numbers at the dyno, running high-powered competition setups, or dialing in a full-blown race truck, these injectors are engineered to deliver massive fuel flow without sacrificing consistency or precision. With 200% over stock capacity, this injector is in a league of its own. It’s designed to support high horsepower builds that demand significantly more fuel than the factory system was ever intended to handle. But what really sets it apart is how Exergy maintains control and accuracy, even at these extreme flow levels. Using in-house micro EDM machining and abrasive flow honing, each nozzle is carefully opened up, then hydraulically flow matched within 1% across the set. That level of balance is critical when you're running this much fuel, it’s what keeps your truck from turning into a smoke show or surging under load.

Premium Construction & Design

Each injector goes through six quality control checks, is tested across multiple calibration points, and is assembled using only top-tier components on specialized equipment developed by Exergy themselves. This isn’t some off-the-shelf performance nozzle slapped on a reman core, this is a fully built, carefully matched, and thoroughly tested system that’s purpose-built for big power. Because of the extreme flow rate, custom tuning is absolutely required to take full advantage of what these injectors can offer. Paired with the right turbo(s), fuel system upgrades, and engine tuning, this setup becomes the foundation for serious competition-level performance. And like all Exergy injectors, they come with a seal kit, complete with copper washers and O-rings, so you’re ready to go at install.

Fits: 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Notes:

• Fits 2017–2025 Silverado and Sierra 2500HD/3500HD 6.6L L5P Duramax.
• Designed for extreme performance and competition builds only.
• Delivers 200% more fuel flow than stock injectors.
• Custom engine tuning is required for proper operation.
• Ideal for high horsepower setups with supporting mods.
• Injectors are hydraulically flow matched within 1% for balance.
• Built using micro EDM machining and abrasive flow honing.
• Each unit goes through six stages of quality control.
• Tested at multiple calibration points for consistency.
• Includes complete injector seal kit with O-rings and washers.
• Made to order with about a 2-week lead time.
• Professional installation and supporting upgrades strongly recommended.