The HSP Hot Side Intercooler Tube, also known as the D-100-HSP, is built for 2001-2004 Chevrolet and GMC 6.6L Duramax LB7 trucks. Whether your truck is stock, modified, daily driven, or part of a full engine bay build, this hot side tube is a proven upgrade over the factory intercooler pipe.

Designed to improve airflow, reliability, sound, and appearance, the HSP Hot Side Intercooler Tube replaces the restrictive factory-style pipe with a 3-inch mandrel-bent tube and high-strength silicone boots.

Why Upgrade Your Factory Hot Side Intercooler Tube?
The factory hot side intercooler tube gets the job done, but it leaves plenty of room for improvement. The factory pipe design can create unnecessary turbulence, uses connection points that may become failure-prone under pressure, and does not offer the clean engine bay appearance many truck owners are looking for.

HSP Diesel designed this upgraded hot side intercooler pipe to provide better flow, a stronger connection, and a cleaner finished look under the hood.

What Makes the HSP Hot Side Intercooler Tube Different?
The HSP Hot Side Intercooler Tube is made from 3-inch mandrel-bent tubing. This design helps increase airflow while using smooth, sweeping bends to reduce turbulence inside the tube. With improved airflow of up to 40 percent, this upgrade helps support better performance and efficiency.

Another key improvement is the straight-style connection to the intercooler. This replaces the factory-style lower intercooler boot connection, helping remove a common failure point and adding reliability for both stock and modified trucks.

Along with the performance and reliability benefits, this hot side intercooler tube can also improve engine and turbo sound. Many customers notice a cleaner, more distinct turbo tone after installation.

HSP Diesel also offers this tube in multiple powder coat options, including custom colors, allowing you to match or contrast your engine bay setup.

Features

• Fits 2001-2004 Chevrolet and GMC 6.6L Duramax LB7 trucks
• 3-inch mandrel-bent hot side intercooler tube
• Improves airflow by up to 40 percent
• Smooth sweeping bends help reduce turbulence
• Straight connection to the intercooler helps remove a common failure point
• High-strength silicone boots included
• T-bolt clamps included
• Improved engine bay appearance
• Available in multiple powder coat options, including custom colors
• Improved turbo and engine sound

What's Included?

• 1x 3-inch mandrel-bent hot side intercooler tube (HSP-IN-LB7-207)
• (1) 3-inch x 4-inch straight boot-430-RFAB
• (1) 2.25-inch to 3-inch reducer boot-441-RFAB
• (1) 2.25-inch T-bolt clamp-420-RFAB
• (3) 3-inch T-bolt clamps-422-RFAB

Vehicle Fitment

• 2001 Chevrolet Silverado 2500HD/3500HD 6.6L Duramax LB7
• 2002 Chevrolet Silverado 2500HD/3500HD 6.6L Duramax LB7
• 2003 Chevrolet Silverado 2500HD/3500HD 6.6L Duramax LB7
• 2004 Chevrolet Silverado 2500HD/3500HD 6.6L Duramax LB7
• 2001 GMC Sierra 2500HD/3500HD 6.6L Duramax LB7
• 2002 GMC Sierra 2500HD/3500HD 6.6L Duramax LB7
• 2003 GMC Sierra 2500HD/3500HD 6.6L Duramax LB7
• 2004 GMC Sierra 2500HD/3500HD 6.6L Duramax LB7

Fitment by VIN Code
LB7: 2001-2004 trucks with VIN Code 1

How to Find Your VIN Code
The engine code is determined by the 8th character of the VIN number. The 10th character of the VIN indicates the model year of the truck.

Details:

• Fits: 2001-2004 Chevrolet/GMC Duramax LB7
• Finish: Powder Coated
• Color: Polar White
• Fuel Type: Diesel
• Engine Year: 2001-2004
• Engine Manufacturer: Duramax
• Engine Designation: LB7
• Liter: 6.6 Liter
• Warranty: Limited Lifetime Warranty