2009 CTS wind noise

2009 CTS wind noise happens when going above speed limit so not concerned I already got a ticket, with 170,000+ miles and a new timing Chain the car is still going beyond 100mpr when I ask for it and only asks for oil between changes, maybe 2 Quarts, no big deal.
The coils 300 dollars and the spark plugs 55 dollars, that’s it for the tune up and maybe a fuel flush, Fine.