If there's anything specific you'd like to know regarding the Corsa's, let me know. If you were closer I'd meet up with you so you could hear it in person yourself. I absolutely love this exhaust. I'm sure Borla sounds nice as well. Either way you win but my vote is obviously Corsa.
This reminds me of that person that constantly blames others for their misfortune. You're the only person I have seen having such a situation. Could it be that you were dealt two bad situations? Absolutely. Is it likely? One could argue. Good luck with everything. Sorry you've had a bad...