LLY +30% Exergy Reman Injectors (set of 8)

LLY +30% Exergy Reman Injectors (set of 8)

LLY +45% Exergy Reman Injectors (set of 8)

LLY +45% Exergy Reman Injectors (set of 8)

LLY +45% Exergy New Injectors (set of 8)

Exergy Performance +45% injectors appropriate if you have already upgraded (or plan to) your transmission, high-pressure fuel pump (CP3), drop-in turbocharger, custom tuning, and have installed supporting mods like traction bars, cold air intake, low pressure fuel pump, and intercooler piping. If this is too much, consider our +30% injectors or Sportsman injectors. For LLY 6.6L Duramax Silverado or Sierra truck. Model years 2004, 2005. You should modify your tuning when you add these injectors.


As low as $4,520.00

In stock

Customize LLY +45% Exergy New Injectors (set of 8)
Set of 8 LLY 45% Exergy New Injector   + $4,520.00

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LLY +45% Exergy New Injectors (set of 8)
LLY +45% Exergy New Injectors (set of 8)

In stock



    LLY +45% Exergy Injectors (set of 8)

    This the perfect injector upgrade if you are looking to make 700hp (more than we suggest for your stock bottom end). You’ll have total peace of mind running the most reliable and consistent injectors ever offered for your LLY. From the top competitors in the industry to over-the-road hot shot drivers, diesel truck owners love Exergy Performance Injectors.

    Why buy Exergy Performance +45% Injectors?

    • Replace Stock or failed LLY Injectors
    • You’ve installed (or plan to)
      •  Built Transmission
      •  Drop-In Turbo
      •  Lift Pump
      •  10mm, 12mm, or Dual Cp3
      •  Custom Tuning
      •  Traction Bars
      •  Cold Air Intake
      •  Intercooler Piping
    • Up 700hp (with supporting mods) without causing smoke
    • You should re-tune your vehicle after installation · Too much? Consider our +30% injectors or Sportsman injectors for less mods

    Benefits of Exergy Performance +45% Over Injectors

    • Exergy Performance: Top quality, high performance, most reliable
    • The only company we trust to modify injectors
    • Bosch equipment design & development for diesel common rail
    • Thorough verification & testing including shot-to-shot consistency and injection timing
    • Full test results of your injectors provided: full rail pressure, shot-to-shot consistency, injection timing
    • Custom report tells you how it flows at idle, part & wide-open throttle conditions
    • Exergy injectors contribute to a smoother running engine
    • Nozzle flow balanced within 1% (+/-0.5%) across set
    • Every set balanced within 4% at rated power
    • EDM and/or Abrasive Flow Nozzles

    Core Charge

    Send your old injectors back to Exergy Performance. After a quality control inspection, your core charge will be refunded. We have separated the core charge out in our product bundle so you can clearly see the cost of injectors before and after this fee. The core charge is not optional, your injectors will not ship without this charge being collected.

    Strongly Recommended Additions

    Fuel Return Lines

    The factory return lines often fail. Over time they become brittle and crack because of heat stress. Leaking return lines cause high EGTs, poor fuel mileage, increased smoke output, and an overall loss in performance. If you’re going to replace your LLY injectors make sure to include Exergy Performance Return Lines (passenger and driver side included). This will ensure your newly installed injectors don’t leak and perform at their best.

    Warning: This product can expose you to chemicals that are known to the State of California to cause cancer. For more information, visit www.P65warnings.ca.gov