The 105-HSP, also known as the HSP Factory-Style Cold Side Tube, is designed for 2001-2004 Chevrolet Silverado and GMC Sierra trucks equipped with the LB7 Duramax engine. It was developed to address the significant airflow restrictions found in the factory charge-air system.

Why Do You Need the HSP Factory-Style Cold Side Tube?

The factory charge-air system on the LB7 Duramax is extremely restrictive. Power production depends on airflow, and the stock system can quickly become a bottleneck, especially when tuning, turbo, or fuel-system upgrades are added.

The limitations of the factory intercooler piping become more noticeable as performance increases. The HSP Factory-Style Cold Side Tube is designed to improve airflow, reduce restriction, and support better overall engine performance.

What Makes the HSP Factory-Style Cold Side Tube Different?
HSP increased the diameter of the cold side tube to 3 inches, dramatically improving airflow capacity compared to the factory piping. Smooth, mandrel-bent curves help reduce turbulence and maintain efficient airflow velocity throughout the charge-air system.

Performance gains will vary depending on the truck's tuning and other aftermarket components, but improved airflow can provide better throttle response, performance, and turbo spool-up. Whether your LB7 is a daily driver, tow vehicle, or performance build, this cold side tube is a valuable upgrade.

What's Included?

• 1x Cold Side Tube (HSP-IN-214)
• 1x 2.25-inch T-bolt Clamp (RFB-420-RFAB)
• 1x 3-inch T-bolt Clamp (RFB-422-RFAB)
• 1x 2.25-inch to 3-inch Reducer Boot (RFB-441-RFAB)

Vehicle Fitment

• LB7: 2001-2004 Chevrolet/GMC 6.6L Duramax-VIN Code 1
• How to Identify Your VIN Code: The eighth character of the vehicle's VIN identifies the engine code. The tenth character identifies the model year of the truck.

Overview

• Fits 2001-2004 Chevrolet and GMC LB7 Duramax trucks
• Increased airflow and performance
• Improved throttle response and turbo spool-up
• 3-inch diameter tubing for increased airflow capacity
• Mandrel-bent tubing for smooth and efficient airflow
• Factory-style routing for proper fitment
• High-strength reinforced silicone boot
• Heavy-duty T-bolt clamps
• Available in multiple powder coat options
• Improves the appearance of the engine bay

Our Warranty

HSP No BS Limited Lifetime Warranty

At HSP, we believe in our products and stand firmly behind every part we produce. For years, we have handled nearly every issue our customers have encountered, even without a formal warranty. We have now formalized that promise with the HSP No BS Limited Lifetime Warranty.

You can expect the same great customer service, backed by a clear warranty process and coverage you can trust.