If your Boxster s 6 speed fill plug is stuck, try this
 

I decided to change the transmission oil on my '02 S the other day. Like an idiot, I ignored the advice to check the fill plug BEFORE draining the fluid. Sure enough, the %#£{|# fill plug was stuck. Tried everything- valve griinding compound on the 10mm bit, heat, pblaster, vice grips, hammer, punch, bigger hammer.... nothing worked.
Finally, i decided to pound a bigger hex bit into the plug and see what would happen. All I had was a 3/8 hex bit and it fit right in. No hammer. When I put tension on it, it held. Long story short, the 3/8 bit was the perfect solution. I applied torque with a pipe slipped over the socket wrench and the plug came loose. Piece of cake! Wish I had tried this sooner.
Phil C

Nice save!

Thanks.
Had to pass it on to the forum.

Yup, always a good idea to make certain you can open the 'in' hole before you drain fluids from the 'out' hole!!! As I recall, getting my fill plug loose wasn't too difficult... sounds like yours was a bear! Glad it worked out...

While you have (had) the aluminum plate off, drill a 1 1/2" hole or so thru it beneath the drain hole. Next time you change it, you won't have to disassemble half the suspension.

Great idea.
Thanks!