Yep, the larger of the two is for your sport.
Just went through all that on my 05' Sport V8 4x4. I went with Cryo treated slotted rotors along with Hawk LTS pads. I LOVE the rotors, they are hard as a rock and should last two or three times as long as standard rotors. Having said that I wish I went with EBC Yellow Stuff pads. I wash my runner often enough that any "excess dust" made by the brakes is not an issue. The Yellow Stuff pads are as good as it gets for severe driving.
I'm fighting a "harmonic" squeal right now. May just need some anti-squeal on the pads, but it's annoying at the very least.
If you're looking to save a buck or two, get standard rotors but don't skimp on the pads. Good luck!