Rear Turbo Flange GT35 & Gasket 3"Rear Turbo Flange GT35 & Gasket 3" When you are making up an exhaust system to fit your new GT35 turbo you will require this 4 bolt flange & Gasket to bolt onto the back of the turbo and it will need to be welded onto the end of your exhaust. Made from high quality mild steel this will endure the high temperatures of the welding process. Suited for GT35 Style Turbos Suited for a 3" Exhaust System Made from high quality Mild Steel 10mm Thick Bolt