I now have some sets of gaskets for the MK1 active aero. They are not genuine supplied Mitsubishi parts but at the end of the day, it is only a sheet of rubber that has been cut to shape. I noticed today that they are no longer available from Mitsubishi. You can buy the rubber sheet for about £20 and cut it yourself or you can buy pre cut gaskets from me.
They are £15 a set plus £2 postage.
Just send me a private message if you are interested.
Sorry. These are all gone now.