I got a 2009 Subaru wrx with a invidia exhaust and some pro sport headers. The catalytic converter was clogged and ran very poorly until I did a cat delete. I drove it for the first time after that and it ran great until now. It started to cut out in every gear at 3750 rpm. It won’t rev any farther. Any suggestions?
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Subaru 2009 wrx cuts out at 3750-4000rpm and backfires.
- Thread starter GavinP
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