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o2 extension

  1. Air Fuel Ratio bank 1 and 2 stuck at 14

    Hey guys so I currently received three o2 sensor codes and my afrs are stuck at 14. I have a 2016 mustang GT with a VMP Odin supercharger kit, LTH, full exhaust with no cats running J bungs to prevent check engine light. Tuned by Lund and have had no issues until the other day I noticed...

  2. O2 check engine headers or cat delete

    So thinking of the mak attack cat delete but weary CEL will stay on. Was also told if do the 1 7/8" kooks headers with cats (due to high flow) it may come on even with tune. Some folks state a O2 spacer/extension would solve that. What have folks done?


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