The Wehrli WCFab 4" intake kit for 2020–2025 L5P 6.6L Duramax Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks replaces restrictive factory plastic piping with a fabricated aluminum 4" intake and airbox. It increases airflow to the turbo for improved throttle response, cooler intake temps and stronger midrange pull. All-aluminum piping, powdercoat finish, silicone boot and stainless T-bolt clamps; installs with basic hand tools and requires no tuning.
Wehrli 20-25 Chevrolet 6.6L L5P Duramax 4in Intake Kit - Semi Gloss Black