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  1. Anyone with full exhaust and no kats?

    Alfa 147, 156 & GT
    I’ve installed some time ago a full exhaust system with 2 mufflers and no kats…but since I’ve made this mod, cause the last lambda sensor doesn’t detect the last kat I have a “Motor Control System Failure” error, and I’ve lost performance when I have this error! If I clean it in the Examiner...
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