Product Description
Push your LLY build into serious competition territory with the Exergy E01 10260 Reman 400% Over Injector Set (with Internal Modification). Calibrated and flow-verified by Exergy Performance, these reman LB7-style bodies configured for LLY use deliver massive fuel volume with precise control for high-horsepower drag, sled pull, and competition setups.
Key Benefits
- ~400% over flow capability for extreme power goals
- Exergy internal modifications for improved stability and control at high rail pressure
- Matched and flow-balanced set for smooth operation under load
- Built from genuine cores and calibrated on Exergy equipment
Fitment
- Platform: 2004.5–2005 GM Duramax 6.6L LLY
- Vehicles: Chevrolet Silverado 2500HD/3500HD; GMC Sierra 2500HD/3500HD
- Intended Use: Competition (drag/sled); custom tuning and supporting fuel system required
What’s Included
- (8) Exergy E01 10260 Reman 400% Over Injectors w/Internal Mod
- Flow data / calibration report (typical)
- O-rings/seals as supplied by Exergy
Required & Recommended Supporting Parts
These injectors demand a robust fuel system. At minimum, pair with a high-quality lift pump and an Exergy CP3 capable of supporting your power level.
- Exergy E04 10205 Sportsman CP3 (LLY) — baseline CP3. Extreme builds may require dual fuelers.
- Duramax Lift Pumps (AirDog / FASS) — stabilize supply pressure and filtration.
- Injector Install Gaskets & Seals — refresh seals during install.
- Shop All Exergy Performance — injectors, pumps, and fuel system components.
Build & Tuning Notes
- Custom tuning is mandatory. 400% over flow requires precise calibration.
- Recommend upgraded CP3 (or dual fuelers), lift pump, and appropriate turbo/airflow for smoke control.
- Competition use only — not intended for stock engines or emissions-controlled street use.
Frequently Asked Questions
Q: Are these drop-in for a stock LLY?
A: No. 400% over injectors require extensive supporting mods and custom tuning. For street/tow use, consider smaller Exergy sets.
Q: What CP3 should I run?
A: At minimum, an Exergy CP3 like the E04 10205 (LLY). High-power builds often require dual fuelers.
Q: Do I need a lift pump?
A: Yes. A quality lift pump improves filtration and maintains supply pressure under load: see options.
Q: Is there a core charge?
A: Many Exergy reman sets include a refundable core. Details appear in product options or at checkout.
Q: Warranty?
A: Covered by Exergy’s manufacturer policies. Use clean fuel/filters and follow proper installation procedures.
About Exergy Performance
Exergy is the benchmark for precision diesel fuel components. Browse more Exergy parts here: Exergy at CPP Diesel.
