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WCFab 3" high‑flow driver‑side intercooler pipe for 2017–2019 L5P 6.6L Duramax Chevy and GMC 2500/3500 HD trucks replaces the factory two‑piece 2½" tube with a single 3" hot‑side pipe. Kit includes upgraded silicone boots and stainless steel T‑bolt clamps that withstand higher pressure and temperature, durable powder coat finish in Illusion Blueberry, and is bolt‑on with no tuning required; replaces GM PN 87839947.
Wehrli 17-19 Chevrolet 6.6L L5P Duramax Driver Side 3in Intercooler Pipe - Illusion Blueberry
