HSP Diesel Deluxe Cold Side Tube for 2020-2024 Chevrolet and GMC L5P Duramax - RAW

HSP Deluxe Cold Side Intercooler Pipe for 2020-2024 Chevrolet / GMC L5P Duramax (HSP-D-605-2D-HSP)

The Problem with the Factory Cold Side Pipe

The OEM cold side intercooler pipe on the 2020-2024 L5P Duramax is functional, but far from optimal. Constructed from rubber, the stock tube is vulnerable to heat, pressure, and age-related degradation. This often leads to splits or leaks, reducing performance and risking turbocharger damage.

The HSP Solution

HSP Diesel has engineered a premium alternative designed for both long-term durability and high-performance functionality.

Key Features

• 3.5" Mandrel-Bent Aluminized Steel Pipe: Offers smooth, unrestricted airflow for better throttle response, improved reliability, and a cleaner engine sound.
• Billet Coupler Set: Includes a CNC-machined billet aluminum intercooler coupler and a billet throttle body coupler for the strongest, most secure connections availableÃeliminating weak points common in OEM designs.
• Reinforced Silicone Boots & Stainless Steel T-Bolt Clamps: Leak-free performance under high boost thanks to high-strength boots and T-bolt clamps.
• Custom Powder Coat Options: Multiple finishes are available to suit your truck's aesthetic and complete the under-hood look.

What's Included

• 1x Coldside (HSP-IN-870)
• 1x Welded Throttle Body Coupler (HSP-IN-873)
• 1x 20-24 L5P Throttle Body Coupler (RFB-873-RFAB)
• 1x 3.5" Aluminum 60° Bend (RFB-310-RFAB)
• 1x 20-24 L5P Intercooler Coupler (RFB-872-RFAB)
• 4x 3.5" T-Bolt Clamp (RFB-423-RFAB)
• 1x 3.5" x 4" Straight Boot (RFB-871-RFAB)
• 1x 3.5" x 3.5" 18 Deg Angled Boot (RFB-875-RFAB)

Vehicle Fitment

• 2020-2024 Chevrolet Silverado 2500HD / 3500HD w/ L5P Duramax
• 2020-2024 GMC Sierra 2500HD / 3500HD w/ L5P Duramax

OEM Replacement For

• GM Part #84682179

Our Warranty

HSP NO BS LIMITED LIFETIME WARRANTY

At HSP, we believe in our products and stand firmly behind every component that leaves our facility. For years, we've supported customers by going above and beyondÃeven before we had a formal policy. Our No BS Limited Lifetime Warranty now puts that same support in writing, outlining the process and guidelines to ensure peace of mind with every purchase.

For more information about our Lifetime, No BS Warranty, click HERE.