Introducing the HSP Diesel Cold Side Tube

The 605-HSP is your go-to upgrade for the 2017-2019 L5P Duramax-equipped Chevrolet and GMC trucks. This Cold Side Tube is designed to be a fantastic addition, whether your truck is stock or modified. It’s an easy-to-install solution that tackles a common issue, making it a smart choice for any truck owner.

Why Consider the HSP Diesel Cold Side Tube?

The factory cold side tube on the L5P is definitely worth replacing. While it might seem like a minor part, swapping it out can make a significant difference. The original cold side pipe is made of plastic, which is prone to failure without any warning. Upgrading to the HSP Diesel Cold Side Tube can help you avoid unexpected breakdowns.

What Makes the HSP Diesel Cold Side Tube Stand Out?

The factory cold side on the L5P features a two-piece plastic design, which not only lacks durability but also introduces multiple potential failure points. In contrast, the HSP Diesel L5P Cold Side Pipe is crafted from mandrel-bent aluminum and includes a metal adapter along with high-strength silicone boots for installation. This robust design eliminates those weak points, keeping you on the road with confidence. Plus, you can install it using all the factory components without needing any tuning! This means a hassle-free installation without any worries about future issues. With various powder coat options available, you can tidy up your engine bay while boosting your truck's reliability.

What’s Included with the HSP Diesel Cold Side Tube?

• (1) L5P Cold Side Adapter
• (1) 3 inch x 6 inch Straight Ribbed Boot
• (1) 3 inch x 4 inch Straight Boot
• (4) 3 inch T-Bolt Clamps

A Quick Note

This product is specifically designed for the 2017-2019 L5P engines, even though the VIN code remains the same. Some small changes were made in the engine bay, so please double-check that you're ordering for the correct model year.

Compatibility of the HSP Diesel Cold Side Tube

• L5P: 17-19 VIN Code Y

Understanding Your VIN Code

Your engine code can be found in the 8th character of the VIN number, while the 10th character indicates the truck's year.

Key Features

• Durable Metal Tube
• High-Strength Boots
• No Tuning Required
• Simple Installation
• All Necessary Installation Components Included

Our Warranty

HSP No BS Limited Lifetime Warranty

At HSP, we take pride in our products and stand firmly behind each one that leaves our facility. For years, we've addressed nearly every issue our customers faced, but we didn’t have a defined warranty in place. We’ve always gone the extra mile for our customers, which sets us apart. Now, we’re taking our commitment to the next level with our clear and straightforward No BS warranty. Below, you'll find all the details you need to understand our warranty, its process, and the guidelines to follow.