disa valve

  1. SilverbackGuerilla

    I bought a heavenly headache.

    (Sorry for this short essay) My name is Craig and I am new to the bmw world having bought a 2001 Z3 2.5i recently. I am a long time enthusiast, though in the past I usually paid for most work to be done. I bought this very cheap ($2.5k),high mileage (170k) roadster with the intent on doing all...