I have a set of Frankenturbo for n54 that were pulled from my car with less than 500 miles in them after I went a different route. These turbos were sent back to them and upgraded with new hot sides, upgraded waste gates and CHAR's. These are still under warranty which is transferable.
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Sport, cold and premium packages, Bms dci, Mahct Schnell dp's, e30 wedge map, Alpina trans flash