Product Description
Maximum fueling for competition LB7 builds. The EXERGY E01 10160 Reman 400% Over Injector Set (with internal modification) delivers extreme flow for high-horsepower 2001–2004 GM Duramax 6.6L LB7 applications. Each set is precision-built, calibrated, and flow-verified by Exergy Performance.
Key Benefits
- ~400% over stock flow for competition-level power (race use only)
- Exergy internal modifications for stability at high rail pressure
- Matched set, balanced for cylinder-to-cylinder consistency
- Reman Bosch bodies, OE-quality sealing components
Fitment
- Make/Model: Chevrolet Silverado 2500HD/3500HD; GMC Sierra 2500HD/3500HD
- Engine: 6.6L Duramax LB7
- Years: 2001, 2002, 2003, 2004
What’s Included
- Set of 8 Exergy E01 10160 Reman 400% Over Injectors (LB7)
- Copper washers & necessary O-rings
- Exergy flow data (per set)
Required/Recommended Supporting Mods
400% over injectors demand a serious fuel system. At minimum, plan for a high-capacity lift pump and upgraded CP3(s):
- GM Duramax Lift Pumps (Category)
- Exergy 10mm Stroker CP3 (LB7)
- Exergy 12mm Stroker CP3 (LB7)
- Shop All Exergy Performance
Related Exergy LB7 Injectors (for alternative build levels)
Install Notes
- Professional installation and tuning required; these are race-use components.
- Ensure adequate lift-pump supply (pressure/volume) and CP3 capacity before operation.
- Use clean fuel and quality filtration; contamination is the #1 cause of injector failure.
Frequently Asked Questions
Q: Are these street legal?
A: No. 400% over injectors are intended for off-road/competition use only.
Q: What fuel system do I need?
A: A high-capacity lift pump plus at least one Exergy stroker CP3 is required; many builds will use dual CP3s.
Q: Do I need tuning?
A: Yes—custom tuning is mandatory to manage pulse width, timing, and rail pressure safely.
Q: Is there a core charge?
A: Many reman sets require a refundable core; see product options at checkout for details.
Q: Warranty?
A: Covered by Exergy’s manufacturer policies. Keep proof of purchase and follow installation/filtration best practices.
About Exergy Performance
Exergy is a leader in high-precision diesel fuel system components. Explore more here: Exergy Performance at CPP Diesel.
