Have Questions?
-
Guaranteed Fitment
Always the correct part
-
In-House Experts
We know our products
-
-
US Delivery
Free shipping on all orders over $50
Wehrli 2020+ Chevrolet 6.6L L5P Duramax Passenger Side 3.5in Intercooler Pipe - WCFab Red
Upgrade the intercooler plumbing on your 2020+ Chevrolet Silverado HD or GMC Sierra HD 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 restrictive factory plastic tube with an oversized 3.5-inch diameter for maximum intercooler efficiency, lower charge air temperatures, and better diesel performance at any power level.
The bold WCFab Red powder coat turns heads under the hood and is engineered to handle the extreme underhood temperatures of a turbocharged diesel. Wehrli designs and manufactures every intercooler pipe in the USA, backed by a reputation for precision fitment and world-class quality among the diesel performance community.
Key Features
- Fits: 2020+ Chevrolet Silverado 2500HD / 3500HD and GMC Sierra 2500HD / 3500HD with 6.6L L5P Duramax diesel
- Passenger side 3.5-inch intercooler pipe — improved flow over factory plastic tube
- Mandrel-bent aluminum for precise fitment and durability
- WCFab Red powder coat — bold, heat-resistant, and corrosion-proof
- Includes silicone couplers and T-bolt clamps for a boost-leak-free seal
- Direct bolt-on installation — no modifications needed
- USA-made by Wehrli Custom Fabrication (WCFab)
- EPA Compliant | MPN: WCF100381-RED
Perfect for L5P Duramax owners who demand performance and reliability. Match with the Wehrli driver side 3-inch intercooler pipe for a complete intercooler pipe kit that transforms your Duramax's cooling and airflow system.