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Wehrli 17-19 Chevrolet 6.6L L5P Duramax Passenger Side 3.5in Intercooler Pipe - WCFab Red
Make a bold statement and upgrade your 2017–2019 Chevrolet Silverado HD or GMC Sierra HD intercooler system with the Wehrli Custom Fabrication Passenger Side 3.5-inch Intercooler Pipe in WCFab Red for the 6.6L L5P Duramax. This mandrel-bent aluminum pipe replaces the factory plastic passenger-side tube with a larger 3.5-inch bore, improving charge air delivery, reducing heat soak, and supporting more power from your Duramax diesel engine.
WCFab Red is the signature color of Wehrli Custom Fabrication — aggressive, eye-catching, and instantly recognizable at any diesel event. The powder coat is high-temp rated and engineered to resist fading, chipping, and corrosion through years of hard work and high performance. Comes complete with quality silicone couplers and T-bolt clamps for a direct, boost-leak-free installation.
Key Features
- Fits: 2017–2019 Chevrolet Silverado 2500HD / 3500HD and GMC Sierra 2500HD / 3500HD with 6.6L L5P Duramax diesel
- Passenger side 3.5-inch intercooler pipe — superior airflow over OEM plastic
- Mandrel-bent aluminum for precise fitment and lightweight durability
- WCFab Red powder coat — Wehrli's signature color, bold and heat-resistant
- Includes silicone couplers and T-bolt clamps for a boost-leak-free seal
- Direct bolt-on installation — no modifications required
- Made in the USA by Wehrli Custom Fabrication (WCFab)
- EPA Compliant | MPN: WCF100530-RED
Join the Wehrli family and run the brand's signature red on your L5P Duramax. Combine with the Wehrli driver side 3-inch intercooler pipe in WCFab Red for a matching, high-performance intercooler pipe kit that's as functional as it is stylish.