LB7 Duramax New 150% Over Injector Set – DDP NLB7-300

Unleash serious fueling capability on your 2001–2004 LB7 Duramax with the Dynomite Diesel Products (DDP) NLB7-300 brand-new 150% over injector set.

These are completely new injectors (no core charge) featuring SAC-style nozzles at 150% over stock, combined with injector body modifications for significantly increased fuel delivery. The set is precision balanced and flow-matched for consistent cylinder-to-cylinder performance.

Key Highlights

• Supports 1,250+ RWHP with proper supporting modifications
• SAC nozzles for improved atomization and spray pattern
• Brand-new construction (not remanufactured)
• Balanced & matched set of 8 injectors
• Built for high-performance / race applications

Fitment

• 2001–2004 Chevrolet Silverado 2500HD / 3500HD
• 2001–2004 GMC Sierra 2500HD / 3500HD
• 6.6L LB7 Duramax diesel

Important Requirements

These injectors are intended for racing applications only. A modified or dual CP3 fuel system, upgraded turbo(s), and custom tuning are mandatory. They are not recommended for stock or lightly modified street trucks.

Note: LB7 injector lines are prone to rust and contamination. We strongly recommend replacing the injector lines if they have not been changed within the last 40,000–50,000 miles.

This set delivers the high-volume fueling needed for serious LB7 builds while maintaining the quality and consistency Dynomite Diesel is known for.