Stainless Bros 4.0in Borg Warner 304SS 5.75 GT42/GT47/GT47 Marmon Style Turbine Outlet Flange

This is a 4-inch Marmon style turbine outlet flange from Stainless Bros, made from 304 stainless steel. It's designed to fit Borg Warner GT42, GT47, and GT47 turbochargers, specifically for custom fabrication projects where you need to connect your downpipe to the turbo's exhaust housing. The 5.75-inch bolt circle is a key measurement for ensuring it mates correctly with compatible turbochargers.

Crafted from 304 stainless steel, this flange offers good resistance to corrosion and high temperatures, which is important for exhaust components. The 4-inch inner diameter is sized to match common exhaust piping for these larger turbos, helping to maintain smooth exhaust flow away from the turbine wheel. This part is intended for custom turbocharger installations and exhaust fabrication, giving you a solid base to build your downpipe.