90-01 Acura Integra High Flow Catalytic Converter (1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 91 92 93 94 95 96 97 98 99 00) THESE ARE RACING CATS.. WILL NOT PASS SMOG.. HI-FLOW RACING CAT CONVERTER INCREASE AIR FLOW AND PERFORMANCE GAIN UP TO 10 HORSE POWER 2.5" OUTLET, 2-3/8" INLET, LENGTH: 16.5" GASKETS AND BOLTS INCLUDED. OFF-ROAD USE ONLY. DIRECT REPLACEMENT FOR OEM PARTS. WILL NOT FIT integra GSR MODELS EASY INSTALLATION BUT PROFESSIONAL INSTALLATION ARE ALWAYS RECOMMENDED