Product Description
S&S Diesel LMM-350SAC-R-SET 350% Over Injector Set (Reman) — 2007.5–2010 GM Duramax 6.6L LMM
Serious fuel for serious power. This S&S Diesel Motorsport reman injector SET uses SAC-style nozzles precision-honed and flow-matched for extreme output and consistent cylinder-to-cylinder delivery. Each set is balanced to tight tolerances for smooth operation under heavy load.
Fitment
- 2007.5–2010 Chevy Silverado 2500/3500 HD — 6.6L Duramax LMM
- 2007.5–2010 GMC Sierra 2500/3500 HD — 6.6L Duramax LMM
- Engine code: LMM (common-rail), emissions-era 2007.5–2010
What’s Included
- (8) S&S Diesel remanufactured LMM injectors with 350% over SAC nozzles
- Set balanced and flow-matched for high-output applications
- Core program applies (return required)
Recommended Supporting Parts
- Shop All S&S Diesel at CPP
- Common-Rail Injector Category
- Fuel System Upgrades (lift pumps, filters, lines)
- Injector Install Kits, Seals & Gaskets
Helpful Notes
- This 350% set is intended for competition/off-road builds with appropriate airflow, fuel supply, and calibration.
- Professional installation and custom tuning are strongly recommended.
- Core charge and return policies apply per CPP Diesel terms.
FAQ
Is this a full set or a single injector?This SKU is for a complete set of 8 remanufactured injectors.
Do I need a lift pump and tuning with 350% injectors?Yes. At this flow level you should plan for a quality lift pump, upgraded fuel filtration, and custom tuning to support proper rail pressure and drivability.
Are the injectors balanced and flow-matched?Yes. Sets are balanced/flow-matched to tight tolerances to promote smooth idle and consistent cylinder fueling.
What about emissions compliance?These high-flow injectors are intended for race/competition use where permitted. Verify local regulations before purchase/use.
