Wehrli WCFab 4" intake kit for 2011–2016 GM LML 6.6L Duramax replaces restrictive factory plastic piping with a high-flow fabricated aluminum intake and air box. The kit increases airflow to the turbo for improved power delivery and cooler intake temperatures by drawing cold air through the inner fender, and includes dry filter, pre-filter cover, silicone boot, clamps and hardware.
Wehrli 11-16 Chevrolet Duramax LML 4in Intake Kit - Bengal Red