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The Wehrli Stage 1 High Flow bundle for 2017–2019 L5P Duramax replaces factory two-piece intercooler plumbing with a heavy‑duty 3" driver side and 3.5" passenger side aluminum system. Features include a CNC machined flange with double o-rings, reinforced silicone boots and stainless t-bolt clamps to prevent boost leaks. Bolt-on installation with basic tools; compatible with stock trucks and requires no tuning. Finished in Illusion Blueberry; saves $25 over buying components separately.
Wehrli 17-19 Duramax L5P Stage 1 High Flow Bundle Kit - Illusion Blueberry
