If you’re looking to give your 2004.5 or 2005 LLY Duramax a solid upgrade, the 292-HSP Intercooler Bundle Kit is a fantastic place to start. This kit isn’t just a collection of parts; it’s a thoughtful combination designed to improve performance, enhance reliability, and even add a splash of color to your engine bay.

What’s the Deal with the HSP Intercooler Bundle Kit?

Think of this kit as your first step into the world of performance modifications. Whether you’re aiming to boost your truck's power, replace some of those stock parts that are starting to wear out, or just want to make your engine bay look a little more exciting, this bundle covers all the bases.

Hot Side Intercooler Tube – What’s the Scoop?

Let’s talk about the hot side tube. This piece is often overlooked, but it’s crucial. The factory hot side pipe on LLY trucks has a notorious reputation for failing. Why? Well, it rubs against the power steering line, and over time, it can develop a hole that leads to boost leaks and a noticeable loss of power. HSP Diesel knows this issue all too well, which is why they designed their hot side tube to route directly into the intercooler. This means lower temperatures, improved airflow, and a lot more clearance in those cramped spaces. Plus, it’s made from a 3-inch mandrel-bent tube that you can get powder-coated to match your style.

Cold Side Tube – What Makes It Special?

The cold side tube is just as impressive. Also made from a 3-inch diameter tube, it’s mandrel-bent to maximize airflow while reducing turbulence. It connects seamlessly to the factory-style bridge, ensuring that your truck operates efficiently and performs at its best without losing any of the necessary components.

Compatibility – Will It Fit My Truck?

This kit is specifically designed for the LLY Duramax models from 2004.5 to 2005. To check if your truck is compatible, just look at the 8th character of your VIN number for the engine code and the 10th character for the model year.

What’s in the Box?

• (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 Clamps
• (2) 2.25 Inch T-Bolt Clamps
• (1) 2.25 Inch to 3 Inch Reducer Boot

A Few Notes

• This kit works best with factory or drop-in replacement chargers, as it mimics the factory intercooler routing.

Fitment Details

This kit fits a variety of models, including:

• Chevrolet Silverado 2500 (2004-2005)
• Chevrolet Silverado 3500 (2004-2005)
• GMC Sierra 1500 (2004-2005)
• GMC Sierra 2500 (2004-2005)
• GMC Sierra 3500 (2004-2005)

In short, if you’re looking to enhance your LLY Duramax, the HSP Intercooler Bundle Kit is a no-brainer. It’s practical, reliable, and a great way to kick off your performance upgrades.