Originally Posted by demoncyclist
Yes, you need the right splined BB removal tool. Remember that the left side cup is reverse threaded, so you need to turn both sides towards the back of the bike to remove them.
The drive-side is reverse threaded with English BBs and the non-drive-side is standard right-hand thread.
With pedals, the drive-side is standard right-hand threaded and the non-drive-side is reverse threaded.