Y-Bridge Kit 3in. 2006-2007 Duramax LBZ Cat Yellow

This kit is an upgraded high-flow intake kit for the 2006-2007 6.6L Duramax diesel engine, replacing the OEM upper intake manifold. The OEM Y-bridges are prone to blowing apart under boost, leading to poor drivability and decreased power. This kit is a high-flow, bolt-together style two-piece 3" bridge, providing a secure sealing surface. It also includes 3" high-flow upper and lower intercooler pipes with smooth mandrel bends and CNC machined billet flanges. It offers a 36% improvement in airflow over stock, eliminates restrictions, and is compatible with OEM passenger lower intercooler pipes or WCFab 3.5" high-flow intercooler pipe kits. No tuning or other modifications are required for installation.