The 031-HSP or HSP 2 Inch Replacement Up-Pipes for the 2001-2004 Chevrolet and GMC Duramax offer a superior alternative to the factory components. Not only do they enhance performance, but they also mitigate common failure points.

 

The factory Duramax Uppipes are susceptible to failure, and an up pipe failure can result in a loss of power and potential strandedness. Therefore, proactive replacement prior to failure is crucial and can significantly impact the vehicle’s reliability.

 

**Understanding Up-Pipe Function and Failure Points**

 

Before delving into up-pipe issues, it is essential to comprehend their role. The up-pipe channels the turbo exhaust gases, which subsequently spin the turbocharger and generate boost pressure. Unfortunately, the factory up-pipes on the Duramax trucks frequently fail, and these failures often occur at inconvenient times. The primary and most common failure point of the factory up-pipe is the bellows. These components crack, leading to leaks that escalate rapidly. Additionally, warped flanges caused by faulty gaskets that cannot be repaired due to the high temperatures persist and continue to leak.

 

**The Advantages of the HSP 2 Inch Replacement Up-Pipe**

 

In contrast, the HSP 2 Inch Replacement Up-Pipe offers distinct advantages. It addresses the aforementioned issues by providing a reliable and durable solution. The up-pipe’s robust construction ensures minimal wear and tear, reducing the likelihood of failure. Additionally, its superior design mitigates the potential for leaks and warped flanges, enhancing the vehicle’s overall performance and longevity.

 

The primary distinction between the factory up-pipe and the HSP 2-inch Replacement Up-Pipe lies in its flow characteristics. The HSP 2-inch Replacement Up-Pipe offers a significantly enhanced flow rate, resulting in increased power, torque, reduced EGTs, and improved spool-up.

 

In addition to its performance enhancements, the HSP 2-inch Replacement Up-Pipe incorporates reliability improvements. The up-pipes are constructed from heavy-wall 304 stainless steel tubing, reinforced with heavy-duty sleeved bellows. This combination ensures both exceptional performance and reliability, far surpassing the capabilities of factory components.

 

**What is Included with the HSP 2IN Replacement Up-Pipes?**

 

* 2-inch Stock Replacement Passenger Up-pipe

* 2-inch Stock Replacement Drivers Up-pipe

* Up-pipe Gasket (Turbo Side)

* Up-pipe Gasket (Manifold Side)

 

**What Does the HSP 2IN Replacement Up-Pipe Do?**

 

* LB7: 01-04 VIN Code 1

* VIN Code Identification: The 8th character of the VIN number identifies the engine code, while the 10th character denotes the year of the truck.

 

**Overview:**

 

* Enhanced Reliability

* Increased Power

* Reduced EGTs

* Improved Spool-up

* Stainless Steel Construction

* Included Gaskets

* Heavy-Duty Sleeved Bellow

 

**Warranty:**

 

* HSP No BS Limited Lifetime Warranty

 

At HSP, we are committed to the quality of our products and stand behind every item that leaves our facility. For years, we have consistently provided exceptional customer service, addressing a wide range of issues. However, we recognized the need for a more comprehensive warranty to ensure our customers’ satisfaction. Therefore, we have implemented the HSP No BS Limited Lifetime Warranty, which provides unwavering coverage for all products.