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  1. Engine Modifications
    Hello all! I have a 2021 wrx with 20k miles. I got cel P0420 AFR is at 14.7 while driving. I have a Grimspeed v2 gesi catted j pipe, remark catback as well. I’ve had Jpipe installed for about 3 months and exhaust for a year or so. Car is pro tuned at the moment. Any idea what it could be before...
  2. General Maintenance, Troubleshooting & Accidents.
    Hello i have a 2012 WRX Premium with 80k miles recently i had a check engine light come one. When i put it on the scanner it came up with P0172 so i cleared code and bought up and down stream o2 Sensor. I installed Down Stream o2 sensor and when i went to install upstream it was the wrong...
  3. Maintenance, service, and repair
    So my 2010 wrx is in shop right now getting turbo Inlit replaced replaced... can that cause a catalytic threshold to come up... once I replace the hose will it go away? Or is it done for in the cat or sensor ???
  4. Tuning: Electronic Engine Management
    New member here with an on-going issue: Car: 2008 WRX Hatchback Issue: O2 Sensor keeps tripping after installing the following: Subaru 08-UP WRX/STI With High FlowCat. Down-Pipe Subaru 2008 WRX HatchBack N1 Cat-Back Cobb AccessPort (this had to be sent back as it would not flash ECU... still...
1-4 of 4 Results