Wehrli 2007.5-2010 LMM Duramax High Flow 3in Y-Bridge Kit- Gloss BlackThis LMM 3" Y Bridge Kit is an upgraded high flow intake kit for the 2007. 5 2010 LMM Duramax which replaces the OEM upper intake manifold supplying air to the engine intake runners. The OEM Y bridge for these trucks is a poorly designed, slip fit style two piece bridge with very little support and is prone to blowing apart under boost on hard working and high performance trucks creating poor drivability and decreased power. This kit is a much