Guys, I've seen lots of threads of what tyres to get when replacement is due, and lots of handy suggestions where to buy them. But what about fitting the new tyres when you have to refit the Porsche 'Tyre Pressure Monitors'?

When I asked my OPC this they unsurprisingly said to always have tyres replaced there. Of course this is where they throw on a huge price margin! Ideally I want to shop around but I don't know how comfortable I would be having a non-OPC fit them.

Perhaps I can buy the tyres myself and then take them to Porsche to have them fitted?! Hmmmm...

Your thoughts gentlemen if you please.