I've got a set of the TMS underdrive pulleys on my current 2001 330i, and I'd like to put them on the '04 ZHP I just got. The alternator pulley is specific to either the Valeo or Bosch alternators, any idea if the ZHP's specifically have one or the other? I currently have the pulley for the Valeo alternator. Trying to save time not tearing the car apart just to check the brand... Thanks!