Product Description
Build a competition-capable LB7 fuel system with the Exergy E01 10164 Reman 500% Over Injector Set. These Exergy-remanufactured LB7 injectors feature internal modifications and massive flow increase for dedicated race or extreme-performance builds. Professional setup, adequate fuel supply, and tuning are mandatory.
Key Benefits
- Approx. 500% over stock flow with Exergy internal mods (race use only)
- Balanced, calibrated, and flow-verified by Exergy for consistency
- Supports very high horsepower with proper air, CP3 supply, and fuel system
Fitment
- Make/Model: Chevrolet Silverado 2500HD/3500HD; GMC Sierra 2500HD/3500HD
- Engine: 6.6L Duramax LB7
- Years: 2001, 2002, 2003, 2004
- Direct replacement for LB7-style common-rail injectors (set of 8)
What’s Included
- (8) Exergy E01 10164 Reman 500% Over Injectors (LB7)
- Tested and calibrated by Exergy Performance
- Basic install guidance
Recommended Supporting Parts (Exergy-only where applicable)
At 500% over, a robust CP3 and supply system is required. Pair with Exergy CP3 and a quality lift pump:
- Exergy 10mm CP3 for LB7: EXERGY E04 10106 10MM STROKER CP3 (LBZ-BASED W/FCA) LB7
- Exergy 12mm CP3 for LB7: EXERGY E04 10107 12MM STROKER CP3 (LBZ-BASED) LB7
- Lift pump category (Duramax): GM Duramax Lift Pumps
- Browse all Exergy at CPP: Exergy Performance
Helpful Notes
- Competition-only component. Not intended for emissions-controlled on-road use.
- Custom tuning, high-flow CP3, and adequate lift pump supply are mandatory at this flow level.
- Inspect/replace return lines, seals, and filter media during install to prevent contamination-related failures.
Frequently Asked Questions
Q: Are these safe for a daily driver?
A: No. 500% over injectors are intended for race/competition builds and require extensive supporting mods.
Q: What CP3 should I run?
A: At minimum an Exergy 10mm stroker CP3; many builds step up to a 12mm or dual-fueler system depending on goals. See the Exergy CP3 options above.
Q: Do I need a lift pump?
A: Yes—high-output lift pump(s) are mandatory to maintain supply pressure and filtration for these injectors. See our Duramax lift pump options.
Q: Is there a core charge?
A: If applicable, core details will appear in product options or at checkout. Keep your core and packaging until finalized.
Q: Warranty?
A: Covered under Exergy’s manufacturer policy. Follow proper install, priming, and filtration procedures and retain proof of purchase.
