Fleece FPE-LB7-IAH-DELETE Intake Air Heater Delete Plug | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Features:

• Increases intake airflow for better performance
• Compatible with 2001-2004 LB7 Duramax engines
• CNC machined from billet aluminum
• Pre-drilled 1/8 inch NPT ports included
• Supports nitrous or water-methanol injection
• Tapped port for boost gauge installation
• Reduces airflow restriction in intake system
• Enhances throttle response and efficiency
• Clean and simple heater delete solution
• Designed for performance-oriented diesel builds
• Durable construction for long-term reliability
• Requires aftermarket tuning for proper use

Give Your Duramax The Breathing Room It Deserves

If you're chasing more performance from your 2001-2004 Duramax LB7, one of the easiest upgrades you can make is removing the restrictive factory intake air heater. The Fleece Intake Air Heater Delete Plug opens up the airflow, letting your turbo breathe easier and respond faster. That means better throttle response, quicker spool-up, and a noticeable bump in overall drivability. It’s the kind of change you’ll feel the moment you step on the pedal. Plus, with pre-drilled ports, you can easily tap in a boost gauge or add nitrous or water-meth to push things even further. It’s a simple bolt-on swap that cleans up the intake path and sets you up for more power. Whether you're building a street truck or prepping for sled pulls, this mod makes a real difference right out of the gate.

Precision Machined To Support High Performance Builds

The Fleece FPE-LB7-IAH-DELETE is engineered for Duramax owners who want to get the most out of their LB7. CNC machined from billet aluminum, this intake air heater delete plug is built to last and designed to maintain a tight, precise seal in the factory location. Removing the air heater eliminates a major airflow restriction, helping to optimize turbo efficiency and improve cylinder fill under boost. With integrated 1/8 inch NPT ports, this plug makes it easy to install sensors or performance upgrades like nitrous or water-methanol injection. It's a clean solution for those running custom tuning, which is required to disable the air heater logic in the ECM. Everything is designed to work seamlessly with the factory intake elbow, providing a professional look with race-ready functionality. For serious performance builds, it’s an essential step in refining airflow and dialing in data.

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

Notes:

• Only fits 2001-2004 GM 6.6L Duramax LB7 engines
• Designed to replace the factory intake air heater
• Aftermarket tuning is required for proper function
• Not legal for use on emissions-controlled vehicles
• Ideal for performance builds or race applications
• Allows installation of sensors or power adders
• Includes 1/8 inch NPT ports pre-drilled and tapped
• Factory intake elbow must be reused
• Intended for off-road or competition use only
• Removes a major airflow restriction in the intake