The WCFab Stage 1 High Flow bundle kit for 2011–2016 LML 6.6L Duramax (Chevy Silverado/GMC Sierra 2500/3500 HD) upgrades intercooler piping and the Y-bridge to reduce OEM restrictions. CNC-machined cast aluminum Y-bridge, larger-diameter intercooler pipes, high-quality silicone boots and clamps increase airflow and reliability, improve spool and throttle response, and install as bolt-on components requiring no additional tuning.
Wehrli 11-16 Duramax LML High Flow Intake Bundle Kit Stage 1 - Illusion Blueberry