Upgrade your 2004.5-2005 GM Duramax LLY with the DDP NLLY-150 Injector Set for unmatched performance. Designed to add 150HP and support over 1,000 RWHP, these injectors are perfect for serious engine builders and tuners. Featuring extensive modifications for enhanced fuel flow and no core charge, the DDP NLLY-150 ensures maximum efficiency and power. Ideal for high-performance applications, these injectors require modified or dual CP3 pumps, turbo upgrades, and custom tuning. Backed by a 1-year unlimited mileage warranty, the DDP NLLY-150 is your solution for reliable, high-output performance. Elevate your Duramax LLY today with this premium injector set.

• 60% over stock for 1,000+ RWHP
• New injectors with extensive modifications
• Requires dual CP3s, turbo upgrades, and custom tuning
• 1-year unlimited mileage warranty