RB20DET Turbo Downpipe Elbow. Inlet Diameter Small Hole: 1.5 Inch Inlet Diameter Big Hole: 2 Inch Outlet Diameter: 2.62 Inch SUS-304 Stainless Made Steel with Polish Finish.
It uses a dual chamber design to separate the exhaust and wastegate gases. Designed for high performance as well as meeting sound level standards. Optimize torque in the low to mid speed range. Gain More Horse Power, Faster Response, Averaging 15-20 Extra HP. This elbow is a direct replacement for the OEM elbow. 100% BRAND NEW, READY TO SHIP Fitment: 1989-1994 NISSAN RB20det Engine with T25 , T28 , GT28 , GT3076 Turbo Set up