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The Wehrli Stage 1 High Flow bundle for 2017–2019 L5P Duramax replaces restrictive factory intercooler pipes with a 3" one-piece driver side and a 3.5" passenger side heavy‑duty aluminum assembly. It includes CNC flange with double o-rings, reinforced silicone boots and stainless t-bolt clamps to eliminate boost leaks. Bolt-on installation with basic hand tools, fits stock trucks with no tuning required. Finished in Chevy Orange; saves $25 versus buying separately.
Wehrli 17-19 Duramax L5P Stage 1 High Flow Bundle Kit - Chevy Orange
