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Wehrli's Stage 3 High Flow Bundle Kit for 2020–2025 Duramax L5P in gloss black replaces restrictive factory intake and exhaust pieces with reinforced silicone boots, stainless t-bolt clamps, CNC flanges with double O-rings, heavy-duty aluminum intercooler pipes, and a ceramic-coated, heat-wrapped 3.5-inch downpipe. The complete assembly improves airflow and durability, ships finished in custom powder coat, and retains factory sensor connections.
Wehrli 20-24 Duramax L5P Stage 3 High Flow Bundle Kit - Gloss Black
