Tyres - AD08's - massive increase in grip - small increase in NVH.
Brakes - (search button) as there are shitloads to choose from.
I've chosen QFM-A1RM's for my next pad as my OEM's will probably only last one maybe two more events.
Rotors - BDA T34000 are waiting to go on when stockers give up.
Suspension - so much to choose from, I have KWV3's and while I am happy with them even this level/quality of coilover will increase NVH in the car.

Just remember almost anything you change on your car to make it tougher/track worthy will increase NVH and detract from the original product.
To be honest ( probably get flamed for this one ) but if I had my time again I probably would install good lowering springs or a strut/spring combo before coilovers. Much cheaper and probably similar results.
If you plan on tracking the car do that first and then decide what you want to change from there.
If your not racing the car the OEM stuff is fine.
As already mentioned start with handling/stopping as Betty's are fat heavy porkies.

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Bye bye betty blue. Hello F6.