Fit:
1998-2005 Subaru Impreza RS 2.5L Non-Turbo
Header Inlet/Outlet Size (IN): 1.50"/ 2.25"(Allowable Error range:0.1-0.3inch )
TIG Welded CNC Machine Flange
4-2-1 Tri-Y off-road racing headers
Made of Stainless Steel Material