Precision Turbo SS V-Band Outlet Flange For T4 Turbine Housing - 3 5/8" OD - PTP074-3036No matter what sort of flange you may need, Precision Turbo and Engine has got the right part for the job. We carry a full line of turbine inlet flanges, turbine discharge weld flanges, oil drain flanges and compressor cover discharge flanges. V Band style flange provides a uniform, positive seal Manufactured from stainless steel Fits most T4 based turbochargers with a 3 5 8" turbine discharge Allows for use with either a 3. 0" or 3. 5" downpipe Why