Yep. Mine is the same but stops once the cats are warm (meow).
Regarding the brake discs, you will need to use official Porsche parts to maintain your warranty however, front discs and pads are easy enough to do at home but the rears can be a PITA as you need to reset the parking brake and need PIWIS or some form of service tool to reset it.
You can have brakes done at an Indie and this 'shouldn't' affect the warranty but best to check with your OPC.
Regarding the brake discs, you will need to use official Porsche parts to maintain your warranty however, front discs and pads are easy enough to do at home but the rears can be a PITA as you need to reset the parking brake and need PIWIS or some form of service tool to reset it.
You can have brakes done at an Indie and this 'shouldn't' affect the warranty but best to check with your OPC.