LB7 Duramax New 75HP Injector Set | 45% Over DDP NLB7-75

Upgrade your 2001–2004 LB7 Duramax with the DDP NLB7-75 brand-new 45% over injector set. These precision-matched injectors deliver approximately 75 horsepower over stock and support up to 725 RWHP when paired with proper supporting modifications, tuning, and fueling.

Key Benefits

• 45% over stock flow — the largest size recommended for use with a stock CP3 pump or stock turbo
• Brand-new injectors (no core charge)
• Flow-balanced and matched as a complete set of 8 for smooth, consistent cylinder performance
• 2-year unlimited-mile warranty
• Ideal for street performance and light-duty use

Important notes: These injectors are not recommended for frequent or heavy towing. LB7 fuel injector lines are known for corrosion issues—strongly consider replacing them (and using quality return-line hardware) when installing new injectors if the lines have high mileage or show any signs of rust.

Fitment: 2001–2004 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD with the 6.6L LB7 Duramax.

Sold as a complete balanced set. Proper custom tuning is required to realize full power potential and ensure safe, reliable operation.