Chevrolet Duramax Fuel Injectors - DDP - Reman 25% Over - `17-`23. These remanufactured injectors are made for 2017–2023 Duramax 6.6L L5P engines and are calibrated at 25% over stock flow to support increased fueling requirements.

Built for enthusiasts upgrading fueling capacity without replacing the entire fuel system, this DDP reman set restores reliable injector performance while providing additional flow for tuned or lightly modified trucks. The remanufacturing process includes thorough cleaning, inspection, replacement of worn components when required, and bench testing to verify consistent delivery. Expect direct-fit replacement into OEM injector locations; however, proper tuning and assessment of the fuel system (lift pump, filters, and tuning strategy) are recommended to safely use the higher flow rate. This set is commonly used to support roughly 100hp worth of additional fueling capacity when matched with appropriate calibration.

Features

• Remanufactured DDP injectors for 2017–2023 Duramax 6.6L L5P
• 25% over stock flow (approx. 100hp fueling capacity)
• Cleaned, inspected and bench-tested for consistent operation
• Direct-fit for OEM injector locations; ready for professional installation

If you have questions about fitment, tuning, or compatibility with your build, call us directly — our staff can help confirm fitment and discuss required supporting upgrades. We offer installation and customization services at two locations: Austin, Texas and the Los Angeles, California area. 512-982-9393 (TX) or 562-981-6800 (CA).

If you are thinking about purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

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