Product Description
S&S Diesel LMM-80SAC-R-SET 80% Over Injector (Reman) — 2007.5–2010 GM Duramax 6.6L LMM (Set of 8)
Level up your LMM with a precision-matched set from S&S Diesel Motorsport. The LMM-80SAC-R-SET delivers an ~80% increase in nozzle flow over stock using SAC nozzles, tight flow matching, and OE-grade build practices for consistent performance under heavy load and high boost. Factory-style fitment keeps installation straightforward while providing serious headroom for tuned builds. (S&S outlines size-by-percentage injector offerings and build standards for LMM; Thoroughbred and other dealers list the 80% SAC set for 2007.5–2010 LMM.)
Fitment
- 2007.5–2010 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD
- Engine: 6.6L Duramax LMM
- Configuration: Set of 8 remanufactured injectors with 80% over SAC nozzles
What’s Included
- (8) Remanufactured S&S LMM injectors with 80% over SAC nozzles
- Flow-matched as a set to tight tolerances
- Standard install hardware as supplied by manufacturer
Recommended Parts (Internal Links)
- Duramax Injectors & Nozzles Category — compare injector sizes and options.
- Duramax Fuel Systems & Components — feed/return lines, regulators, filtration.
- FASS Lift Pumps for Duramax — improved supply pressure & filtration for injector longevity.
- CP3 Pumps & Components (GM) — for high-flow builds requiring additional fuel supply.
- Shop All S&S Diesel at CPP — related S&S injectors and fuel system parts.
Helpful Notes
- Custom tuning and adequate lift-pump supply are strongly recommended for 80% over injectors.
- Core charges and returns may apply depending on inventory and program requirements.
- Intended for high-performance/competition use where permitted; verify local regulations.
FAQ
Do these fit all 2007.5–2010 LMM trucks?
Yes. This set is designed specifically for the LMM-era 6.6L Duramax (2007.5–2010) in the Silverado/Sierra 2500HD/3500HD.
What size are these injectors?
They are approximately 80% over stock flow using SAC-style nozzles, providing substantial fueling headroom for tuned builds.
Do I need a lift pump or other supporting mods?
For best results, use a quality lift pump/filtration system and ensure adequate high-pressure supply (CP3 health), plus custom tuning.
Are these truly flow-matched?
Yes. S&S builds and matches sets to tight tolerances to maintain smooth idle quality and balanced cylinder fueling.
Is there a core charge?
Many reman programs require cores; check the product page at checkout for the current core policy.
