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  1. Bluey white heavy smoke after DPF drilling

    Alfa 159, Brera & 946 Spider
    Hi All, Hoping someone can settle my mind here. My DPF accidentally got completely decored, everything out inc front bit of filter, so it's effectively straight thru pipe now. When it was originally just drilled at the rear and about 3cms into the core, it would chuck out a cloud of bluish...
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