2017–2019 L5P WCFab 4" Stage 2 Intake Kit with Airbox
Take your L5P airflow to the next level with the WCFab 4" Stage 2 Intake Kit. Designed for serious performance, this system replaces the restrictive factory intake with a full 4-inch high-flow setup — delivering the air your Duramax actually needs to perform.
This isn’t just a basic intake upgrade. The Stage 2 kit is built around a massive 4" intake tube paired with a high-quality airbox, helping to reduce restriction while still protecting against engine bay heat. The result is cooler, denser air, improved throttle response, and more consistent power — especially on tuned or higher-demand setups.
Built with WCFab’s signature attention to detail, this kit offers both performance and durability. Whether you’re daily driving, towing, or pushing your truck harder than stock, this intake is designed to keep up.
Key Benefits:
• Full 4" high-flow intake design for maximum airflow
• Increased throttle response and performance potential
• Airbox helps reduce heat soak and protect intake temps
• Ideal for stock and tuned applications
• High-quality construction and fitment
• Straightforward bolt-on installation
If you’re looking for an intake that actually makes a difference — not just noise — the WCFab Stage 2 is a serious upgrade for your 2017–2019 L5P.