Product Description
Hit your LB7 fueling goals with the Exergy E01 10116 Reman SAC 45% Over Injector Set. These Exergy Performance reman injectors use SAC-style nozzles and tight calibration to deliver ~45% more flow with excellent street manners—ideal for towing and performance builds on 2001–2004 Duramax 6.6L LB7.
Key Benefits
- ~45% over stock flow with SAC nozzle design for crisp atomization
- Individually balanced and flow-matched for smooth idle and drivability
- Includes seals to simplify installation; core return program where applicable
- Built and validated by Exergy on industry-leading test equipment
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 10116 Reman SAC 45% Over Injectors (LB7)
- Injector seal kit (copper washers & O-rings)
Recommended Supporting Parts
Match fueling and protect your investment with these proven companions:
- Exergy CP3 upgrades for LB7:
- GM Duramax Lift Pumps (category)
- LB7 injector lines & install hardware:
- Shop All Exergy Performance
Install Notes
- Cleanliness is critical—flush/replace contaminated lines. Consider new high-pressure lines on LB7.
- Lift pump strongly recommended for consistent supply pressure and filtration.
- Custom tuning recommended to optimize drivability/EGTs with larger injectors.
Frequently Asked Questions
Q: Are these a direct replacement for LB7?
A: Yes. They fit 2001–2004 LB7 trucks and include seals; tuning is recommended for best results.
Q: What CP3 should I pair with 45% overs?
A: For tow/street builds, start with an Exergy 10mm; step to 12mm+ as horsepower goals increase.
Q: Do I need new injector lines?
A: LB7 lines commonly corrode and can contaminate new injectors—replace if aged or pitted.
Q: Core charge?
A: If applicable, core return windows and amounts show at checkout. Return cores promptly to avoid fees.
