2004.5-2005 Duramax Stage 5 75% Over Injector Nozzle (0433171860-R5)

Industrial Injection Stage 5 75% over injector nozzle for the 2004.5-2005 LLY 6.6L Duramax. Brought in direct from the OE supplier and then extrude-honed at Industrial Injection's facility for a balanced, matched set.

The R5 spec flows 37 LPM — a 75% increase over stock. Sized for builds that have already moved past the smaller stages and want more top-end fuel; pair with supporting fuel and tuning. Direct bolt-in form factor.

• Stage 5 — 75% over stock flow / 37 LPM
• Built with brand-new OE Spec Plus parts
• Extrude-honed and balance-matched across the set
• Improved atomization and lower EGTs
• Direct replacement for the factory nozzle
• Tested on a state-of-the-art test stand
• Includes a new copper crush washer
• 1-year unlimited-mileage warranty
• Part Number: 0433171860-R5

• Sold individually
• No core required