S&S DIESEL LMM-250SAC-R-SET 250% OVER INJECTOR SET (REMAN) — 2007.5–2010 GM DURAMAX 6.6L LMM

S&S Diesel LMM-250SAC-R-SET 250% Over Injector Set (Reman) — 2007.5–2010 GM Duramax 6.6L LMM

Engineered by S&S Diesel Motorsport for serious fuel delivery, this remanufactured, flow-balanced set of 8 LMM injectors uses SAC nozzles opened to 250% over stock and matched for consistent performance. Ideal for high-horsepower builds where precise metering, stable rate shape, and set balance matter.

• Set of 8 remanufactured LMM injectors with SAC nozzles (250% over)
• Flow-matched and balanced as a complete set for smooth running
• Built to OE-level standards on industry-leading test equipment
• Designed for racing/competition use with appropriate supporting mods

Fitment

• 2007.5–2010 Chevy Silverado/GMC Sierra 2500/3500 with 6.6L Duramax LMM
• Direct-fit LMM application (VIN “8”), crew/extended/cab-chassis compatible

What’s Included

• (8) Remanufactured S&S LMM injectors — 250% over SAC
• Set flow-balancing to tight tolerances
• Install tips & setup guidance (see FAQs)

Recommended Parts & Categories

• Shop S&S Diesel at CPP — match injectors with S&S pumps, hardware, and more.
• Duramax Injectors & Nozzles — related injector components and install items.

Helpful Notes

• Intended for high-performance builds; tuning and supporting fuel/air upgrades are required.
• Core policy may apply on reman units; retain and return usable cores promptly.
• Verify emissions and local regulations for competition parts before purchase.

FAQ

Yes. This set is built for 2007.5–2010 Duramax LMM applications and installs in the factory locations.

Absolutely. 250% over injectors require proper ECM calibration and matching airflow/fuel system upgrades.

A full set of 8, balanced together to minimize variance cylinder-to-cylinder.

High-flow lift pump and filtration, appropriate CP3, larger turbo/airflow, and exhaust; see our S&S brand page and Duramax injectors/nozzles category for options.