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HSP Diesel Intercooler Bundle Kit For 2004.5-2005 Chevrolet/GMC-Custom Color
SKU: HSP-D-292-HSP-CUST-GVJG
$560.50 USD
Shipping calculated at checkout.
The 292-HSP or best known as the Intercooler Bundle Kit for the 2004.5 and 2005 LLY Duramax Chevrolet and GMC Trucks. The Intercooler Bundle Kit is one of the best places to start when it comes to modifying your LLY Duramax.
What is the HSP Intercooler Bundle Kit for the LLY Duramax?
The HSP Intercooler Bundle Kit is a kit that we like to think of as a great first step. This bundle is made with everyone in mind, regardless of your goals or next step.
Whether you want to increase performance, change out failing stock parts, or spice up your engine bay with some color, the Intercooler Bundle Kit is a great place to start.
Tell us about the Hot Side Intercooler Tube that comes in the HSP Intercooler Bundle Kit
The hot side tube that is inside the HSP Intercooler Bundle Kit is a part that is often overlooked. The hotside pipe from the factory on the LLY trucks is often known to fail.
The factory routing that it takes rubs on the power steering line; this causes the line to create a hole in the tube resulting in a boost leak and loss of power. This has been a problem from day one, and HSP Diesel knows it can be a big one with no notice.
This is why our Hot Side tube routes directly into the intercooler; this results in lower temperatures, better airflow, and added clearance in those tight places. The Hot side intercooler tube is made from a 3 Inch mandrel-bent tube that can be powder coated to spice up the engine bay.
Tell us about the Cold Side Tube that comes in the Intercooler Bundle Kit
The Cold side pipe is also made of a 3 Inch diameter tube. We mandrel-bent the tube to give the maximum flow of air and decrease the turbulence that is often seen inside these pipes.
The mandrel-bent 3 Inch cold side tube connects to the factory style bridge for the ultimate efficiency, flow, and maximum performance capabilities of your truck while retaining all the necessary parts.
What comes with the HSP Intercooler Bundle Kit
- (1) 3 Inch Mandrel-bent hot side tube
- (1) 3 Inch Mandrel-bent cold side tube
- (1) 3 Inch x 4 Inch Straight Boot
- (4) 3 Inch T-Bolt Clamp
- (2) 2.25 Inch T- Bolt Clamp
- (1) 2.25 Inch to 3 Inch Reducer Boot
What Does the HSP Intercooler Bundle Kit fit?
LLY: 04.5-05 VIN Code 2
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 kit is best suited for factory or drop-in replacement chargers, as it resembles the factory intercooler routing.
Overview
- Pressure tested to 100 PSI
- 3 Inch Mandrel-bent tubes
- Works with factory emissions
- Increase in power
- Increase in airflow
- Powder coat options to dress up the engine bay
- Great for stock applications
Features:
- Intercooler Bundle Kit For 2004.5-2005 Chevrolet/GMC-Custom Color
- Fits: 2004.5-2005 Chevrolet/GMC
- Sold As: Kit
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.
questions we get about hsp diesel daily:
Who is HSP Diesel and what makes their products different?
HSP Diesel builds high-flow, made-in-the-USA diesel performance hard parts that solve real-world airflow restrictions. Their components are CAD-designed, flow-tested, and engineered for durability, clean fitment, and consistent performance. Customers choose HSP because the quality, welds, powder coat options, and fitment are more refined than generic diesel aftermarket parts.
Are HSP Diesel products compatible with my truck?
Most HSP Diesel components are designed for GM Duramax platforms (LB7, LLY, LBZ, LMM, LML, L5P). Each product page lists exact year and engine compatibility. If you're not sure which Duramax engine you have, send us your VIN and we’ll gladly confirm fitment before you order.
Do HSP Diesel parts improve performance?
Yes. Upgrades like intercooler pipes, Y-bridges, turbo inlet kits, and intakes dramatically reduce airflow restriction. Most owners see faster spool, cooler EGTs, smoother towing performance, and better throttle response—even on otherwise stock trucks.
Do I need tuning after installing HSP Diesel parts?
Most HSP airflow parts (intakes, charge pipes, Y-bridges, turbo mouthpieces) do not require tuning to install or drive. However, a tune may help the truck take full advantage of the increased airflow. If a part requires tuning—such as a turbo upgrade—the product page will clearly note it.
Are HSP Diesel parts emissions compliant?
Many HSP Diesel components work with factory emissions systems in place. Some turbo-related or race-use parts may not be emissions compliant. Always read the emissions note on the product page and follow local laws before installation.
How long does it take for HSP Diesel parts to ship?
Most HSP parts are built and powder-coated after you order. Standard colors ship sooner, while custom colors may require 2–4+ weeks depending on workload. Lead times are shown on each product page and updated frequently.
What powder coat colors are available?
HSP offers a wide range of standard colors (black, red, white, blue, etc.) plus custom powder coat finishes. Custom colors may add cost and lead time. If you're trying to match an existing part, send us a photo and we can help you choose the closest match.
Do HSP Diesel kits come with everything needed for installation?
Most HSP parts include the clamps, boots, brackets, and hardware required for a clean install. Larger systems—like turbo kits or intercooler upgrades—may require additional supporting parts. Each product page lists everything included in the kit.
Are HSP Diesel parts compatible with other aftermarket brands?
In most cases, yes. As long as the parts use compatible diameters and mounting points, HSP Diesel components integrate well with other brands of turbos, intakes, intercooler systems, and fueling components. If you already have mods installed, tell us what’s on the truck and we’ll check compatibility.
Will HSP Diesel parts help with towing?
Absolutely. Improved airflow reduces EGTs, increases turbo response, and helps the truck pull more consistently under load. Many daily drivers and towing-focused Duramax owners upgrade to HSP specifically for cooling and drivability gains.
What warranty do HSP Diesel products include?
HSP Diesel provides a warranty against workmanship and material defects. If a part arrives damaged or defective, contact us with photos and your order number and we’ll assist in getting it corrected.
Can I install HSP Diesel parts myself?
Many components—like charge pipes, intakes, and coolant tanks—are DIY-friendly. More complex installs (Y-bridges, turbo kits, or tight-tolerance piping) may require professional installation. Review the instructions to make sure you're comfortable with the job.
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