Wehrli Up Pipe Kit

Fits 2017–2025 Chevrolet Silverado and GMC Sierra 2500/3500 HD with 6.6L L5P Duramax

Part #: WCF100624

Overview

Upgrade your 6.6L L5P Duramax equipped Chevrolet Silverado or GMC Sierra with Wehrli’s 2-inch stainless steel up pipe kit. Designed for durability and performance, this heavy-duty upgrade replaces the OEM 16-gauge, leak-prone up pipes with robust 11-gauge stainless steel components. The kit is engineered to withstand high temperatures and harsh conditions, ensuring a long-lasting seal and reliable operation. It’s an ideal choice for truck owners seeking to improve turbo response, reduce exhaust gas temperatures (EGTs), and enhance overall engine efficiency without the need for tuning or complex modifications. This upgrade is perfect for those looking to support increased power output and improve turbo spool-up, especially in applications where durability and consistent performance are critical. The stainless steel bellows prevent cracking and leaks common with OEM parts, providing peace of mind during heavy-duty use or towing. The kit is compatible with factory exhaust manifolds and WCFab Billet Exhaust Manifolds (Part Number WCF100373), making installation straightforward for experienced DIY enthusiasts or professional installers.

Key Features

This high-quality up pipe kit offers several key benefits:

• Constructed from durable 11-gauge stainless steel for longevity and resistance to cracking
• Heavy-duty stainless steel bellows designed to prevent leaks and withstand thermal expansion
• Increases turbo spool-up for improved throttle response and power delivery
• Reduces exhaust gas temperatures, supporting engine longevity and efficiency
• Includes gaskets for a complete, ready-to-install upgrade
• Designed for use with factory exhaust manifolds or WCFab Billet Exhaust Manifolds
• No tuning required for installation, simplifying the upgrade process

Construction & Design

This upgrade features precision-welded stainless steel components, ensuring strength and corrosion resistance. The 2-inch diameter piping is optimized for efficient exhaust flow, supporting better turbo performance and heat management. The stainless steel bellows are engineered to accommodate thermal expansion and engine vibrations, maintaining a secure seal over time.

Driving Feel & Feedback

By replacing the OEM up pipes with these heavy-duty stainless units, your vehicle will experience more consistent turbo response and reduced EGTs, contributing to smoother acceleration and improved overall driving experience. The upgrade helps support the engine’s performance under demanding conditions, providing a more reliable and responsive feel.

Installation & Fitment

This kit is designed for direct replacement on 2017-2025 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks equipped with the 6.6L L5P Duramax engine. It is compatible with factory exhaust manifolds and WCFab Billet Exhaust Manifolds. Installation involves removing the OEM up pipes and replacing them with the new stainless steel units, with no tuning required.

What’s Included

The package includes all necessary gaskets and hardware for a complete installation, ensuring a seamless upgrade process.