you can add a HID kit to replace the halogen bulbs,, a decent quality Bi-xenon kit (with low & highs in the same bulb) from TRS will cost about $180, don't buy anything off ebay, it is all junk that will break after a few days,
also be sure to get the Kit with the Relay harness, they call it a relay harness because it relays power directly from the battery, under the hood you can wire this to the positive battery post.. the reason you want a relay harness is because the Camaro runs low voltage (6volts) to the headlights for the DRL's,, so if you use the direct type harness the bulbs will not function properly with only 6 volts,, but with the relay harness the bulbs will always get 12 volts because power is pulled directly from the battery.
Also many people say you should install projectors in your halogen housings or buy aftermarket headlights with projectors already in them,, this is a PITA and I did not do this,, although it will make the beam more consistant, but it will add $3xx or more to the upgrade,,, so then your looking at atleast $500 in aftermarket plus some labor,,,
I think the factory upgrade is either $1100 or $1700 in which you get a top quality system,,, so it may be worth it just to buy the Factory option. The problem is finding the car you want that has the option.
2012 1LS Silver Ice - Mods - SS Strut Brace, RX Catch Can, BBK CAI, TRS Bi-Xenon HID's, Blackout Grill, RX65 Radar Detector, 700watt 4 Channel Amp with Kicker Speakers, 4Pack Gauges Added, 30% tint. Baer Drilled Rotors & pads, 20" American Racing. Awesome car.