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The Wehrli Custom Fab Stage 1 high‑flow intake bundle for 2020–2025 Duramax L5P replaces the restrictive factory two‑piece intercooler plumbing with heavy‑duty one‑piece 3" hot and 3.5" cold side pipes to improve airflow, throttle response and turbo spool. It eliminates weak factory joints and reduces boost leaks while fitting stock trucks without tuning.
Wehrli 20-24 Duramax L5P High Flow Intake Bundle Kit - Flat Black
