update on the slight misfire and p0430 code issue... Issue was a bad coil on cylinder 4. 2 nights ago, the car finally threw a flashing ses light and told me exactly which cylinder it was missing on. All it took was a couple WOTs from a red light lol. I changed the coil pack with a good but used one and its running like top now, no more stumbling at a red light, no more on and off puff puff from the exhaust and it gets up to speed with less pedal than before. So the p0430 code does not always mean a bad pre cat as it was mentioned, theres no more p0430 since the bad coil was indeed on the bank 2 side. I had the car 3 months and im just now replacing that coil...