Re: 2010 LTZ Replacement Tires for Florida
I want to start by saying you're way too kind to the Good Year Eagle LS2s. They are some of the worst tires on the market. Terrible in the rain and snow, loud, poor tread life, and they have mediocre grip and handling even in dry weather.
Also, just FYI: summer tires tend to have short tread life, like 30k miles, so I'm going to suggest some all-season tires.
If you have the V6:
Michelin MXM4 - 55k mile warranty, quiet, great grip and handling, very good in rain. (I have these, they're awesome.)
If you have the 4-cylinder:
Michelin Defender - 80k mile warranty, quiet, comfy, excels in adverse conditions like rain, not as sporty as the MXM4s but much better than LS2s.
2009 2LT V6 Red Jewel
w/Factory Fogs, Lip Spoiler, Black Calipers, Chrome-Tech 18s,
GM Performance STB, Amsoil Cone Intake
HPTuners - Tune In Progress (V4.10)