Hey guys running out of options here, I have a 1999 Impreza outback sport. 301,000 miles. 2.2l engine. 5 speed Manual. my cats were clogged due to a misfire so I knocked the filters out and put the pipes back on. my car currently has a problem where it will almost sound like its spitting If I give more than half throttle. its been doing this since before the cats were knocked out. I just replaced the throttle body position sensor due to a diagnostic that stated it was running at low efficiency, still nothing changed. I replaced the fuel filter in march of 2017 along with injector number three.(hence the misfire I had) car has California emissions. only code is an 02 sensor code since I knocked the cats out. any advice would be helpful. Thanks!