Product Description
S&S Diesel LBZ-450SAC-R-SET 450% Over Injector Set (Reman) — 2006–2007 GM Duramax 6.6L LBZ
Built for maximum fuel and serious power. This S&S Diesel Motorsport remanufactured 450% Over LBZ injector set is flow-matched and calibrated to tight tolerances for consistent, repeatable performance in high-output LBZ builds.
- Set of 8 remanufactured S&S LBZ common-rail injectors with high-flow SAC nozzles
- Precision flow-matching for uniform cylinder fueling and clean rate shaping
- OE-grade components and calibration processes
- Competition/race use only; supporting fuel, air, and tuning required
Fitment
2006–2007 GM Duramax 6.6L LBZ (Chevy Silverado/GMC Sierra 2500/3500). Designed for dedicated competition builds that need extreme fuel volume.
What’s Included
- (8) Remanufactured S&S Diesel LBZ injectors — 450% Over
- Documentation and injector data as provided by S&S
Recommended Parts (CPP Internal Links)
- Shop All S&S Diesel at CPP
- Fuel Injectors Category — related sizes and replacements
- Fuel System Upgrades — lift pumps, filtration, lines, and fittings
- Lift Pumps — maintain supply to high-flow injectors
Helpful Notes
- Professional installation and custom tuning are required for 450% over injectors.
- Emissions compliance varies by jurisdiction; intended for off-road/competition use.
- Core charge and return policy apply per supplier terms.
FAQ
Are these injectors street legal?
No. 450% Over injectors are intended for race/competition applications and are not emissions compliant for on-road use.
Do I need additional fuel system upgrades?
Yes. A high-capacity lift pump, upgraded filtration, and suitable CP3/CP4 solution are strongly recommended to support the increased demand.
Is custom tuning required?
Absolutely. Custom calibration is required to manage pulse width, rail pressure, and smoke control with 450% Over injectors.
What core charge applies?
A refundable core charge typically applies to reman sets. Verify current core policy and return window when ordering.
Will these work with a stock turbo?
Not recommended. 450% Over injectors require corresponding air system upgrades (turbo(s), intercooling) for safe EGTs and optimal results.
