You feelin' lucky punk?
... personally I didn't bother with warranty when mine expired with my OPC. Had the car 3 years now and so far so good. Like most enthusiasts, I pamper and maintain muchly.
I don't intend selling anytime soon. Like you, I've modded my car also so I burnt my bridges with Porsche on that score. Something I'm pretty relaxed about.
Some on here are all for warranties, some (like me) are not. I'd say it's personal choice based on circumstances. Enjoy the GTS! :thumb: