Banks 48631 Monster Exhaust Head Pipe Kit | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Features:

• Fits 2001–2004 6.6L Duramax LB7 engines
• Direct replacement for restrictive factory pipe
• Larger diameter for increased exhaust flow
• Improves turbo response and reduces backpressure
• Helps deliver higher boost and faster spool-up
• Increases horsepower and torque output
• Engineered for better exhaust system efficiency
• Constructed for long-lasting durability and fit
• Designed to reduce power loss post-turbo
• Optimized for towing and performance use

Unleash More Power With A Smoother Flow Out Of Your Turbo

If you're looking to squeeze more performance out of your 2001–2004 Duramax LB7, the Banks Monster Exhaust Head Pipe Kit is one of the smartest upgrades you can make. From the factory, your turbo is forced to push exhaust through a narrow, restrictive outlet pipe that chokes performance and slows response. This high-flow replacement eliminates that bottleneck with a larger diameter and smoother bends, giving hot exhaust gases a clear path to exit. The result? Faster turbo spool-up, higher boost, and a noticeable increase in both horsepower and torque. Whether you're towing heavy loads or just want a more responsive truck around town, this kit delivers the kind of gains you can feel every time you hit the throttle. And because it’s designed by Banks, you know it fits right and lasts long. It's a simple bolt-on with serious benefits for anyone who wants to wake up their LB7.

Built To Eliminate Backpressure And Maximize Turbo Efficiency

The Banks 48631 Monster Exhaust Head Pipe Kit is engineered to solve a critical restriction point in the 6.6L Duramax LB7’s exhaust system by replacing the factory turbine outlet pipe with a larger, freer-flowing upgrade. This part of the system is often overlooked, yet it plays a major role in how efficiently the turbocharger can move exhaust gases. By increasing the pipe diameter and optimizing flow characteristics, Banks reduces backpressure at the turbo outlet, allowing it to spool quicker and maintain boost with less effort. This improved exhaust flow translates directly into increased torque, horsepower, and throttle responsiveness under load or acceleration. The kit is designed for direct fitment on 2001–2004 GM Silverado and Sierra 2500HD/3500HD models, making installation straightforward with no major modifications required. It is ideal for performance-minded owners looking to maximize efficiency without altering the full exhaust system. Built with durability and fit in mind, this component is a smart foundation for a more responsive and capable turbo diesel setup.

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

Notes:

• Designed specifically for 2001–2004 6.6L Duramax LB7 engines.
• Replaces the restrictive factory turbine outlet pipe.
• Larger diameter allows quicker exhaust flow from the turbo.
• Helps reduce backpressure and improves turbo efficiency.
• Improves throttle response, boost control, and overall power.
• Contributes to gains in both torque and horsepower.
• Ideal upgrade for towing, performance, or heavy-use applications.
• Engineered to install easily with factory exhaust components.
• Constructed by Banks for precision fitment and lasting durability.