Dynomite Diesel Economy Series Brand New Injector Set — 2001-2004 6.6L LB7 Duramax (NLB7-ECO / DDPNLB7-ECO)

Upgrade your 2001–2004 Chevrolet Silverado or GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax with this complete set of brand-new Dynomite Diesel Economy Series injectors. Engineered as a balanced, matched set, these injectors deliver a mild 10–20 rear-wheel horsepower gain, noticeably smoother operation, sharper throttle response, and tighter flow tolerances than factory units—without sacrificing drivability or efficiency.

Key Benefits

• Mild 10–20 RWHP increase while remaining safe for completely stock trucks (stock CP3 pump and turbo)
• Full injector balancing and tighter-than-OEM tolerances for smoother idle, more consistent power, and improved throttle response
• Little to no smoke with excellent fuel economy
• Brand-new construction (not remanufactured) for maximum reliability and longevity
• Direct-fit replacement for the 6.6L LB7 Duramax

Fitment

• Engine: 6.6L Duramax LB7
• Years: 2001–2004
• Vehicles: Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD

Important Installation Note

LB7 injector lines are prone to rust and can cause injector problems. If the lines have not been replaced in the last 40,000–50,000 miles, we strongly recommend installing a new line set at the same time (Dynomite Diesel part DDP LB7LINE-SET).

Backed by Dynomite Diesel’s quality, performance, and reliability reputation plus a 3-year warranty. This Economy Series set is the ideal choice for daily-driven LB7 trucks that want a refined, efficient upgrade without aggressive tuning or supporting modifications.