Industrial 0433175275-R5 Race5 75% Over Nozzle | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Features:

• Fits 2001–2004 GM 6.6L Duramax LB7 engines
• 75 percent over stock fuel flow rate
• Delivers 39 LPM for maximum performance
• Built for racing and sled pull competition
• Supports extreme power and tuning levels
• Engineered for high-output fuel delivery
• Precision machined for spray pattern accuracy
• Nozzles sold individually per injector
• Quantity of 8 required for full engine set
• Best used with upgraded fuel and turbo systems
• Industrial Injection quality and race-proven performance
• Not recommended for stock or mild setups

Feed Your LB7 The Fuel It Deserves When It Matters Most

If you’re serious about building a track-dominating Duramax, the Industrial Injection Race5 75% Over Nozzle gives your 2001–2004 LB7 the kind of fuel delivery it needs to hang with the heavy hitters. Whether you're lining up at the sled pull or chasing podiums at the track, these nozzles unlock the potential hidden inside your fuel system by pushing 75 percent more fuel than stock. Built for high-performance applications, each nozzle delivers 39 LPM of fuel to ensure your truck can handle aggressive tuning and support major horsepower goals. The spray pattern and flow are designed to keep up with big turbo setups and upgraded CP3 pumps, making them a critical upgrade when stock injectors just can't keep up. These nozzles are sold individually, so you can replace or build out as needed, but you'll need a full set of eight to complete the job. This is not a weekend-warrior part, it’s built for those pushing the limits. When you’re chasing serious power, these nozzles are your ticket to more boost, more fuel, and bigger wins.

Built For High Flow Accuracy And Race Level Demands

The Industrial Injection 0433175275-R5 Race5 Nozzles are engineered for competition-level performance and are specifically designed to fit 2001–2004 GM 6.6L Duramax LB7 engines. These 75% over nozzles provide approximately 39 liters per minute of fuel flow, a significant increase from stock, making them an ideal choice for builds that include upgraded turbos, modified fuel pumps, and advanced tuning. The precision-machined design ensures each nozzle delivers consistent and balanced fuel atomization, helping to maintain engine stability even under extreme boost and high EGTs. Their construction and flow characteristics make them best suited for dedicated race and sled pull trucks, not daily drivers or lightly tuned builds. Because each nozzle is sold individually, you have the flexibility to replace one or outfit your entire engine, but a full set of eight is required for proper performance. Pairing these nozzles with matching hardware and tuning is critical to achieve full benefit while avoiding over-fueling or imbalance. Backed by Industrial Injection’s race-proven engineering, these nozzles are a high-performance solution for Duramax owners aiming for serious results.

Fits: 2001, 2002, 2003, 2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Notes:

• Designed for 2001–2004 GM 6.6L Duramax LB7 engines
• Nozzles are 75% over stock fuel flow capacity
• Each nozzle flows approximately 39 liters per minute
• Engineered for competition use such as sled pulling and racing
• Not intended for stock or lightly modified trucks
• Nozzles are sold individually and require a quantity of 8 for a complete set
• Should be used with upgraded fuel systems and tuning
• Professional installation and custom tuning are strongly recommended
• Part of Industrial Injection’s high-performance Race Series
• Built to deliver precise fuel atomization under extreme conditions