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catalytic converter

  1. Turbo decision

    Tuning, Technical Questions
    Hey guys, I took my R33 to STM (a local tuner) for a check to see what was up with my car, as it hasn't been running right since I put the new 25DET engine in and I've had it on a Nissan Consult and all the sensors on the engine seem to be working properly, and all the readings from the lambda...
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