SKU# 15582 | MPN: M2-SUB-FP3RFull Race front pipe big mouth with 3 inch flat flange Full race applications.ONLY FITS TO ASB-9501RSS SYSTEMS DOES NOT MATE WITH ASB-9501 SYSTEM no fire ring needed.SIZE : Full 3″ BoreSPECIFICATION : Race – NO CATMATERIAL : 304 Stainless SteelMODEL YEAR : 1993-2000 Impreza WRX STI turbo