Originally had this in the elite but decided I wont post in elite again nor will I be posting my Warlords of Draenor Gold Take Over Guide there either.
Chan's Imperial Robe ws removed from the game & sells for a shit ton of gold.
150k is considered a cheap robe so.
Anywho.. it's back in the game now.
My original post:
The infamous Chan's Imperial Robe (Chan's Imperial Robes - Item - World of Warcraft) has been re-added to the game.
At this time the known drop table is based on world drop mode from Level 47 table mobs.
Most efficient form of farming this at the moment is turning in Imperfect Draenethyst Fragment & Flawless Draenethyst Sphere in Blasted Lands. You can pick them up on your auction house ranging from 20g-100g. It is a repeatable quest where you just click the item & turn it in. These can be found on your auction house or farmed (rare spawns) in Blasted Lands. Other mobs drop them but at a pathetic drop rate.
Once you have the item, click it - accept the quest & turn it into Kum'isha (Kum'isha the Collector - NPC - World of Warcraft)
You can also get other xmog items worth value, this is not guaranteed to give you Chan's. Its just the most efficient way to farm it if you have gold to blow.
You could always go farm BRD if you didn't wanna do this.