Product Description
S&S Diesel LMM-500SAC-R-SET 500% Over Injector (Reman) — 2007.5–2010 GM Duramax 6.6L LMM
Built for competition. This remanufactured, flow-matched set of 8 S&S Diesel Motorsport injectors features SAC nozzles sized to approximately 500% over stock to support extreme fueling demands in purpose-built LMM applications. Each set is balanced to tight tolerances for consistency under load and rpm. (Fitment & sizing based on S&S LMM injector program and dealer listings.)
Fitment
- 2007.5–2010 Chevrolet Silverado 2500HD/3500HD 6.6L Duramax LMM
- 2007.5–2010 GMC Sierra 2500HD/3500HD 6.6L Duramax LMM
What’s Included
- (8) Remanufactured S&S Diesel Motorsport LMM injectors — 500% over, SAC nozzle
- Flow-matched set, competition-calibrated
- Documentation / install guidance overview
Recommended Supporting Parts
- GM Duramax Injectors / Nozzles (Category)
- GM Duramax Fuel Lift Pumps (Category)
- GM Duramax Fuel System Components (Filtration, lines, rails)
- Shop All S&S Diesel at CPP
Helpful Notes
- Competition use only. Matching air, fuel supply, and tuning are required to utilize 500% over injectors.
- Core policy applies on reman units; see store terms at checkout.
- Professional installation and calibration strongly recommended.
FAQ
Are these sold as a full set?Yes. LMM-500SAC-R-SET is a remanufactured set of eight injectors intended for matched high-flow builds.
Can I run these without additional fuel system upgrades?No. At 500% over, you’ll need a quality lift pump, enhanced filtration, and custom tuning to support flow and maintain rail pressure.
Will these pass emissions?These are competition-oriented components and are not intended for use on public roads where emissions compliance is required.
Do I need tuning?Yes. Proper tuning is mandatory to command fueling, manage smoke, and protect the engine and aftertreatment.
