If it is factory lowered it will not be ESA. The conversion back to standard height is simple (i have done it). New shocks as standard height

, I have Wilbers from Revs....they are excellent. You will also need a standard height center and side stand. They are regularly on Ebay and simple to fit. Depending on the model pre or post 08 ensure you get the correct center stand. There is a good thread on this forum detailing changing of shocks. If you are not sure don't muck about, get a mechanic to do it. If you go to revs they will fit while you wait...about 1.5-2 hours.
Any other info, give me a shout.
Cheers