The MAF removal is pretty easy.
Remove air filter top
Remove the cartridge
Undo two 10mm nuts that hold the lower air filter housing
Remove the lower air filter house.
The MAF has a large hose clamp that holds it to the lower rubber elbow. Sometimes the clamp is not tight. Try if the MAF twists a little. If not, stop twisting. If it is tight you can use a long Philips screwdriver from the passenger side to undo that clamp. A long screwdriver fits just just over the cam cover. If the angle is not so lucky, a short screwdriver or a small (7 or 8 mm?) socket fits the clamp. Best is to reach it from above, it is hard to get to. ** make sure you do not drop tools under the intake. **
Next is lift it a bit (pull out from the elbow, and undo the connector.
ps: reconnect the clamp by tightening it from the passenger side :)
The MAF is inserted in a rubber elbow that connects it to the intake throttle body: