Product Description
S&S Diesel LMM-45SAC-R-SET 45% Over Injector Set (Reman) — 2007.5–2010 GM Duramax 6.6L LMM
Unlock reliable fueling and clean power with S&S Diesel Motorsport’s 45% over remanufactured injector set for the LMM. Each set is flow-matched and balanced for smooth operation, built on Bosch reman cores to OE-level standards, and sized using industry-standard % over stock conventions.
- Set of 8 reman injectors sized 45% over stock, flow-matched as a set.
- Bosch reman bodies with S&S proprietary nozzle work and stringent QC.
- Core return required per typical dealer listings.
Fitment
2007.5–2010 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD with 6.6L Duramax LMM.
What’s Included
- (8) Remanufactured S&S Diesel injectors — 45% over (LMM-45SAC-R-SET)
- Calibration and balance paperwork
Recommended Supporting Parts
- 2007.5–2010 LMM Fuel System Upgrades — filtration, lines, and lift pumps to protect and support higher flow.
- 2007.5–2010 LMM Injectors & Install Components — seals, lines, and related hardware for a complete job.
- LMM Tuners & Programmers — calibration to take full advantage of 45% over injectors.
Notes
- Professional installation and appropriate calibration strongly recommended for optimal drivability and reliability.
- Verify local emissions regulations for your intended use.
FAQ
Are these injectors truly 45% over stock?Yes. S&S sizes injectors by percentage over stock nozzle flow; 45% is a standard size offered for LMM applications.
Do I need tuning with 45% over injectors?In most builds, tuning is recommended to realize the benefits and maintain proper fueling and emissions controls for larger-than-stock injectors.
What cores are used?S&S uses Bosch remanufactured bodies for quality consistency; a core return is typically required.
Will this fit my 2009 2500HD LMM?Yes—fitment covers 2007.5–2010 LMM 2500/3500 models.
