HSP Cold Side Tube - Factory Style (2003-2004 Chevrolet / GMC)

The 105-HSP or also known as the HSP Cold Side Tube Factory Style for the 2003 and 2004 Chevrolet and GM LB7 Duramax-equipped trucks. Because of the massive amounts of power and airflow being left on the table with the 2003 and 2004 trucks we went to work.

Why would you need an HSP Cold Side Tube Factory Style for the 2003-2004 trucks?

The factory-charge air system on the LB7 trucks is extremely restrictive. With that being said let's talk about and take a look at why that's an issue. In order to make power, we need air, with the charge air system on the LB7 trucks it is a massive choke point. The turbo can move so much more air than the system can handle we find that the intercooler being able to move that air becomes the restriction first.

What does the HSP Cold Side Tube Factory Style do differently?

HSP Diesel saw quickly this chokepoint on the LB7 trucks. So we went to work, starting we increased the diameter of the tubing. HSP Diesel went to a 3 Inch tube diameter, this gave us a major flow difference over the factory part. After we had our size dialed in we went on to bend this pipe with the smoothest bends we could do. This gives the air the best path to flow and gave us the least amount of turbulence in the flow. Many of our customers state a power increase however that increase will vary depending on aftermarket options of turbo, fuel, and tuning that you have on the truck. Regardless we think you are going to be extremely happy with everything you gain with the HSP Cold Side Tube Factory Style.

What comes with the HSP Cold Side Tube Factory Style?

• 3 Inch Cold Side Tube
• (1) 2.25 Inch - 3 Inch Reducer Boot
• (1) 3 Inch T-Bolt Clamp
• (1) 2.25 Inch T-Bolt Clamp

What Does the HSP Cold Side Tube Factory Style fit?

• LB7: 03-04 VIN Code 1

How do people know the VIN code?

Engine code is dictated by the 8th character of the VIN number. The 10th character is the year of the truck.

*Special Note*

This does not fit the 01-02 LB7 Trucks even though it is the same VIN code

Overview

• Increased performance
• Increased spool up
• Powder coating options dress up the engine bay
• Upgraded high strength silicone boots
• 3 Inch diameter tubing
• Factory style routing for a factory fit

Our Warranty

HSP No BS Limited Lifetime Warranty

At HSP we believe in our products and we stand firmly behind every single one that leaves our facility. For years we have taken care of almost everything and anything that our customers had issues with, but we didn't have a set in stone warranty. We have always gone above and beyond for our customers which set us apart from the rest. We will continue that same standard, but now we are taking things to the next level.