For Nissan 240SX Stainless Steel Turbo Outlet Downpipe Elbow Exhaust Type-2 - S13 S14 S15 SR20 Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends; Maximizing Smoothest Exhaust Airflow High Performance JDM Racing Design, Reduces Turbo Lag with Dual Chamber for Both Wastegate and Exhaust Increase Engine and Turbocharger Output and Efficiency; Increase 10-16 Horse Power and Torque Approximately TIG Welded CNC Machine Flange for Strength and Durability; Direct Bolt-On Installation Inlet Size: Standard SR20DET T25G Flange; Outlet Diameter: 2.5"; Piping Diameter: 2.5";O2 Sensor Bung Insertion; Metal Gasket(s) Included