Alternator, starter, battery problems anyone?

ddvette9

Car was starting weak on warm starts for several months. So a few months ago I dropped a new battery in. Car still consistently starts weak on warm starts. Today I fired up the car and as it was starting simultaneously the battery light and the check engine light came on then flashed off right before the car died and then the car got its strength and started. Very scary feeling. Here is a few thoughts.

Anyone have problems with the starter?
Anyone have problems with their alternator?

Even though I have had exhaust and drop ins for a while along with a zenclosures set up and a kenwood double din, is their a possibility the ECU is going haywire?

Car consistently runs around 14.2-14.5 volts

Scheduled for service Friday and am gonna have them thoroughly inspect the alternator and starter and battery again before my warranty ends in 500 MILES!!!!