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The WCFab 4" High Flow Turbo Intake Horn for 2017–2025 Chevrolet Silverado and GMC 2500/3500 HD trucks with the 6.6L Duramax (L5P) is a cast-aluminum replacement for the OEM turbo mouthpiece. Its smooth anti-surge profile, billet PCV port and O-ring compressor seal boost airflow and reliability, delivering improved throttle response and a more aggressive turbo sound. Powder coated in Bengal Blue, it installs as a bolt-on upgrade with included hardware.
Wehrli 17-24 Duramax L5P High Flow Intake Horn - Bengal Blue
