I'm just about to upgrade to SS Brembo's on my 2LT (they are off to the powder coater).
After looking at the Brembos with their 4 pistons of stopping power versus the stock v6 brakes, I can't wait to get the Brembos on.
The v6 brakes are adequate, but clearly not optimal.
For track use, I'd be concerned with the stock V6 brakes. This is a personal opinion. I am not a brake expert.
Mods: GM Locking Gas Cap, RS License Plate Frame