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  1. Problem with 280cv and downpipe

    Turbo And Tuning
    Hello guys, i’m Alessandro from Rome - italy, i’m the owner of a rosso competizione Stelvio 280cv, recently i have put the ragazzon downpipe and a bmc air filter. So we start to reprogram the ecu and we have put the car on the dyno (bapro). Unfortunately we stop around 307/310 cv because the...
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