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 - Gloss White
Give your 2020+ Chevrolet Silverado HD or GMC Sierra HD a performance upgrade and clean engine bay look with the Wehrli Custom Fabrication Passenger Side 3.5-inch Intercooler Pipe in Gloss White for the 6.6L L5P Duramax diesel. This precision-bent aluminum pipe replaces the factory passenger-side intercooler tube with a larger 3.5-inch inner diameter to maximize airflow, reduce charge air temps, and improve diesel engine performance under any load.
The Gloss White powder coat finish is eye-catching and durable — designed to withstand the extreme heat, moisture, and vibration found in a diesel truck's engine bay. Wehrli fabricates these pipes in the USA with strict quality control to ensure perfect fitment on every 2020+ L5P Duramax.
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 — larger bore for superior airflow over stock
- Mandrel-bent aluminum construction — lightweight yet extremely durable
- Gloss White powder coat — bold, heat-resistant finish that won't chip or fade
- Includes premium silicone couplers and T-bolt clamps for a boost-leak-free install
- Direct bolt-on fit — no drilling, cutting, or modifications needed
- Made in the USA by Wehrli Custom Fabrication (WCFab)
- EPA Compliant | MPN: WCF100381-GW
The Wehrli passenger side intercooler pipe is the go-to upgrade for L5P Duramax owners who demand the best. Whether you're towing heavy loads, running high-boost power levels, or simply want to eliminate the weak OEM plastic pipe, this is the part for you.