Product Description
Step up fueling on your 2006–2007 6.6L Duramax LBZ with Industrial Injection’s Extrude Honed LBZ nozzle flowing 38 LPM (~40% over). Precision-honed and flow-matched for consistent delivery, this tip is ideal for street/strip trucks with supporting air and fuel upgrades. Sold individually (1 nozzle).
Fitment
- 2006–2007 Chevy Silverado/GMC Sierra 2500HD/3500HD — 6.6L Duramax LBZ
What’s Included
- (1) Extrude-honed injector nozzle — 38 LPM (Race 3 / ~40% over equivalent)
- Installation requires removing injector from engine (professional install recommended)
Key Features
- Extrude honed & flow-matched for balanced cylinder-to-cylinder fueling
- 38 LPM (~40% over) capacity supports substantial HP gains with proper tuning
- OE-quality base nozzle finished to Industrial Injection specs for durability
Recommended Parts (CPP internal links only)
- BOSCH 0445120042 New LBZ Injector (stock replacement)
- BOSTECH ISK637 Injector Return Line Kit (LLY/LBZ/LMM)
- FLEECE FPE-DMAX-CP3 — CP3 Pump for LBZ/LMM
- EXERGY E04 10307 — 12mm Stroker CP3 (LBZ-based)
- Shop All Duramax Injectors & Nozzles
Cross-Reference / Alternatives (LBZ Nozzle Flow Options)
- 24 LPM — 0433171924-R1
- 26 LPM — 0433171924-R2
- 30 LPM — 0433171924-R4
- 35 LPM — 0433171924-R5
- 40 LPM — 0433171924-R6
Helpful Notes
- Tuning required: Larger nozzles need custom calibration to maintain clean, safe power.
- Air & fuel: Pair with adequate turbo airflow and CP3/lift-pump supply.
- Emissions: Performance nozzles may be intended for closed-course competition only. Verify local laws.
FAQ
Is 38 LPM the same as “~40% over”?Yes—Industrial Injection’s Race 3 LBZ nozzle is commonly referenced as ~40% over and flows about 38 LPM.
Are these sold as a set or individually?They are sold individually per injector nozzle. Order quantity 8 for a full engine set.
Do I need to remove the injector to install?Yes. Nozzle installation requires injector removal and should be performed by a qualified diesel shop with proper test/flow equipment.
What supporting mods are recommended?A healthy CP3 (or stroker CP3), quality lift pump, proper turbo airflow, and custom tuning. See our recommended parts above.
