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The Wehrli 3.5" intake horn for 2020–2024 Chevrolet 6.6L L5P Duramax replaces the stock 2.4" plastic horn with a larger, 3.5" aluminum horn to improve airflow into the turbo while keeping the OEM PCV connection. It fits stock trucks without other modifications, is compatible with OEM or aftermarket intake kits, is powder-coated for durability, installs with supplied mounting hardware and requires no tuning for operation, offering a bolt-on upgrade.
Wehrli 20-24 Chevrolet 6.6L L5P Duramax 3.5in Intake Horn w/PCV Port - Gloss Black
