S&S DIESEL LLY-80SAC-R-SET 80% OVER (REMAN) — 2004.5–2005 GM DURAMAX 6.6L LLY

S&S Diesel LLY-80SAC-R-SET 80% Over (Reman) — 2004.5–2005 GM Duramax 6.6L LLY

Step up fueling and response with this 80% over, remanufactured SAC-nozzle injector set from S&S Diesel Motorsport. Each set is built for consistency and reliability, ideal for high-performance LLY builds when paired with proper supporting mods and tuning.

Fitment

• 2004.5–2005 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD — 6.6L Duramax LLY
• Direct-fit injector set for LLY fuel system; tuning and supporting fuel/air upgrades strongly recommended for 80% over sizing.

What’s Included

• Set of 8 remanufactured S&S LLY injectors with 80% over flow (SAC nozzles)
• Flow-matched and balanced as a set for smooth operation
• Built using OE-quality components and S&S proprietary processes
• Core return required (typical on reman injector sets; see checkout terms)

Recommended Supporting Parts

• Duramax Injectors & Nozzles (Category) — compare injector sizes and nozzles for your goals.
• Fuel Systems & Components (Duramax) — lift pumps, filters, lines, and return hardware to support higher flow.
• Shop All S&S Diesel at CPP — pair with S&S CP3s and fuel system upgrades.
• GM Duramax HQ (All Generations) — browse complementary airflow, turbo, and hard-parts upgrades.

Installation Notes

• Professional installation and calibration recommended; verify injector quantity adjustments and rail pressure targets in your tune.
• Use fresh fuel filters and ensure a healthy lift/supply system to protect new injectors.
• Verify local and federal emissions regulations applicable to your use case.

FAQ

• How much more do these flow than stock? Approximately 80% over stock when paired with SAC nozzles and S&S internals.
• Are these sold as a set of 8? Yes, this is a complete set for the LLY (8 injectors).
• Do I need tuning? Yes — 80% over injectors require proper calibration and supporting upgrades for safe, optimal performance.
• Is there a core charge? Yes — remanufactured injector sets typically require a refundable core, returned per our store policy.