I have just my 05 X3 3d M Sport ,power upgrade by Autologic, as it was the first oil burner to be done a few probs. were found within the BMW ecu programme, however these were resolved by Autologic, 40 bhp, onto the 220 original, the torque is tremendous as is the extra acceleration , £350 gb pounds, well worth it, also changed the over hard, for me, suspension for an AC Schnitzer set up, this is superb, £1000.gb pounds but worth every penny, any-one interested in the original suspension parts???