GM Duramax 6.6L L5P Stainless Steel Up-Pipes (2017–2024)

Upgrade the exhaust system on your 2017–2024 L5P Duramax 6.6L with these heavy-duty 2" stainless steel up-pipes. Designed to replace the factory 1-5/8" OEM pipes, which are prone to leaks and failures, these up-pipes offer improved durability and performance. Enjoy faster turbo spool-up, lower exhaust gas temperatures (EGTs), and the confidence of a leak-free system. Constructed from 2" stainless steel tubing paired with mild steel flanges, these pipes deliver exceptional strength and reliability.

Compatibility:

Fits 2017–2024 GMC Sierra and Chevy Silverado 2500/3500 trucks equipped with the L5P 6.6L Duramax engine.

Key Features:

• 2" stainless steel tubing for maximum exhaust flow

• Mild steel flanges that provide a secure, leak-proof seal

• Replaces OEM 1-5/8" up-pipes known for bellow leaks

• Enhances turbo spool-up for sharper throttle response

• Reduces EGTs to protect critical engine components

• Precision TIG-welded construction for long-lasting durability

• Includes premium gaskets and installation hardware

Important Note:

These up-pipes do not have provisions for the EGR system. An EGR removal is required for proper installation on L5P setups. Be sure all EGR components are removed before installing this product.

🚫 For off-road use only.

🚘 Fitment

Vehicle-Specific — Designed for GM Duramax L5P 6.6L trucks from 2017 through 2024.