Borg Warner T4 .91 Exhaust Housing for 73mm Turbine Machined by WCFab for HX40 style exhaust outlet

The Wehrli Custom Fabrication 01-04 LB7 Duramax S300 Single Turbo Install Kit replaces OEM plumbing and the y-bridge with high-flow 3" diameter piping. This kit allows the installation of an S300 based turbo on LB7 Duramax engines, replacing OEM plumbing and y-bridge with high-flow 3" diameter piping. The kit includes a 4" intake, dry air filter, pre-filter cover, T4 pedestal with hardware, stainless steel oil feed and drain lines with fittings, 3" fabricated high flow Y-bridge, 3" hot side intercooler pipe, 3" cold side intercooler pipe, 3" down pipe with high temp coating (mates to exhaust system flange), driver side trans dipstick tube, silicone boots, T-bolt clamps, V-band clamps, heat wrap, and powder coating.