Wehrli High Pressure Rail Fitting for LB7, LLY, LML

- Ported High Flow Fuel Rail Fitting for use on LB7, LLY, or LML Duramax - Drastically improves fuel flow over OEM fittings for more consistent rail pressure in high performance applications - Compatible with Driver and Passenger Side Rails Short Stainless Steel Rail Fitting for LB7 & LLY or LML 6.6L Duramax Fuel Rails. Ported 1/8" ID for increased fuel flow to eliminate restriction in the stock fitting which can cause rail pressure drops in high performance applications. Fitment Note: LB7 Requires the half round puck to be drilled out to install in driver side front rail.