Are there any known issues with the E91 - engine or anything else? N47- Timing chain issues apparently (take no notice) I want to add power folding mirrors, how simple is this? Need Modules too, need to hard wire in Want to change the alloys to MV2's - again how easy is this? MV2 easy...but something more E91 era will look better I'm thinking of upgrading the brakes to Brembo? IMO no point, the 320d has very good breaks as standard, unless your going for look Hope this helps mate