Wehrli Custom Fab 3" high-flow driver-side intercooler pipe for 2017–2019 L5P 6.6L Duramax (Chevrolet Silverado / GMC Sierra 2500/3500 HD) replaces the factory two-piece 2.5" pipe with a one-piece 3" hot-side tube. The kit includes upgraded silicone boots and T‑bolt clamps that withstand higher pressure and temperature, installs without other modifications, and comes with a durable powder-coat finish for longevity.
Wehrli 17-19 Chevrolet 6.6L L5P Duramax Driver Side 3in Intercooler Pipe - Cat Yellow