HSP 2" Replacement Up-Pipes
Fits 2001-2004 Chevy/GMC 2500/3500HD LB7 Federal Emissions
Please allow at least 40+ Business Days before shipment, as all HSP Products are special order.
*NOT LEGAL FOR SALE OR USE IN CALIFORNIA. THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER THE FEDERAL CLEAN AIR ACT (42 U.S.C. § 7522(A)(3))*
*This product is ONLY designed for closed course racing where it is legal to do so. Any other use will be in violation of local, state, and federal laws. We are not responsible for unlawful use of this product.*
The 031-HSP or HSP 2 Inch Replacement Up-Pipes for the 2001-2004 Chevrolet and GMC Duramax are an incredible replacement to the factory parts that not only improve performance but also lessen common failure points.
The factory Duramax Uppipes are prone to failure and failure on an up pipe can leave you stranded, down on power, and more. This is why replacing them prior to a failure is so important and can make or break a moment real fast.
Why Would you need an HSP 2 Inch Replacement Up-pipe?
Before we get into up-pipe issues let’s talk about what an up-pipe does, the up-pipe feeds the turbo exhaust gases that then in turn spin the turbo and create boost. The factory up-pipes on the Duramax trucks fail often and more often than not it’s when it’s least convenient. The major and most common failure point of the factory up-pipe is the bellows. They crack and that causes leaks and then it spirals from there. Other problems that occur are warped flanges from bad gaskets that can not be repaired due to the heat and will just continue to leak.
What does the HSP 2 Inch Replacement Up-Pipe do Differently?
The biggest difference between the factory up-pipe and the HSP 2 inch Replacement is the flow. The HSP 2 Inch Replacement Up-Pipe is a different world when it comes to how much it flows. With better flow we all know comes more power more torque and reduces EGT’s all while increasing spool up. Now that covers the performance increase side of things but we have also reliability fixes as well. Our Up-Pipes are made of heavy wall 304 stainless steel tubing. We then took heavy-duty sleeved bellows and put them into our stainless steel tubing to create an up-pipe that is capable of performance and reliability that is far beyond the factory parts.
What comes with the HSP 2IN Replacement Up-Pipes?
- (1) 2" Stock Replacement Passenger Up-pipe
- (1) 2" Stock Replacement Drivers Up-Pipe
- (2)Up-pipe Gasket (Turbo Side)
- (2)Up-Pipe Gasket (Manifold Side)
What Does the HSP 2IN Replacement Up-Pipe?
- LB7: 01-04 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.
- Increased Reliability
- Increased Power
- Lower EGT’s
- Increased Spool-up
- Stainless Steel Design
- Gaskets Included
- Heavy-Duty Sleeved Bellow
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 & 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. Below you will be able to clearly read & understand our “No BS” warranty, its process, and the guidelines in which to follow.
- This is a custom order part. Once the order has been processed it CANNOT be canceled, returned, or refunded.