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The Wehrli Stage 3 High Flow Bundle Kit for 2020–2025 Duramax L5P 6.6L combines intake, intercooler piping, and a 3.5" ceramic-coated downpipe into a single package. It replaces restrictive factory components with 14 ga. aluminum piping, reinforced silicone boots, stainless t-bolt clamps and CNC-machined flanges with double O-rings. Wehrli offers bolt-on fitment, custom powder-coat finishes, and reports notable gains when paired with appropriate tuning.
Wehrli 20-24 Chevrolet 6.6L Duramax L5P Stage 3 High Flow Intake Bundle Kit - Bengal Red
