i need to replace the plugs on my 2010 gts. any suggestions other that factory plugs?

 

Stick with stock plugs. They are excellent Iridiums and expensive. You wont make hp on a NA motor switching plugs. Turbo guys run colder to fight detonation.
Get stock Iridiums, they last 60-100k miles. Mine looked new at 50k but changed them as I already bought new ones.
Make sure you get correct plugs for your motor. 4B11 uses different plugs than 4B12.