Is your car a GTP or a GT top swap? Sorry if this is a stupid question..your user name suggest that it is a GT.
It's an L67.
Irridium spark plugs last 100k mi and work just as well as copper. Copper is a waste on N/A and only lasts 15k mi. Don't use Platinum.
Use 195* tstat unless you can thoroughly explain why not; 99.9% don't need a lower temp.
Almost any oil filter, ever, is of higher quality than ACDelco. Spend $6+.