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The Wehrli 3" Y-Bridge Kit for 2006–2007 Duramax LBZ replaces the OEM upper intake bridge with a bolt-together, high-flow two-piece design to eliminate weak slip-fit joints. The kit includes CNC billet flanges, silicone boot, stainless T-bolt clamps, MAP seal and new o-rings, delivering a full 3" tract and a significant airflow improvement over stock. It installs on stock trucks without tuning and pairs well with emissions-compliant tuning.
Wehrli 2006-2007 LBZ Duramax High Flow 3in Y-Bridge Kit- Gloss Black
