Wehrli - WCF203-72Wehrli Custom Fab O-Ring Seal, WCFab L5P VGT TURBO FLANGEReplacement O-Ring for Duramax L5P VGT Turbo Compressor Inlet Flange. Used on the following WCFab Kits: 2017-2024 L5P High Flow Turbo Intake Horn (WCF100775), 2017-2019 L5P Stage...