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Wehrli 4" Intake Kit with air box for 2001–2004 Duramax LB7 replaces restrictive factory plumbing with all-aluminum 4" piping and a dry filter in a sealed air box to increase airflow to the turbo. The design draws cold air from the inner fender for cooler intake temps, improved torque and throttle response. Includes silicone boot, stainless T-bolt clamps, hydrophobic pre-filter cover and removable lid for easy inspection and maintenance.
Wehrli 2001-2004 LB7 Duramax 4in Intake Kit with Air Box- Gloss Black
