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Wehrli passenger‑side 3" intercooler pipe for 2004.5–2005 LLY Duramax, finished in red. This mandrel‑bent, 14‑gauge aluminum one‑piece 3" pipe replaces the factory 2.5" design and uses upgraded silicone boots and stainless T‑bolt clamps to improve sealing and withstand higher boost pressures. It fits stock trucks without further modification, flows significantly better than stock, and installs with basic hand tools.
Wehrli 04-05 Duramax (LLY) Passenger Side 3in Intercooler Pipe - Red
