As for the exhaust system, I think I am going to wait and shoot for the Borla. I too like the sound of it BUT like I said PRICEY.
If you like the Borla, but too pricey for you, look into the OBX Racing cat back. ( Chinese Borla copy ).
I have had one on for 2 years, no complaints.
$444 :
OBX Catback Cat Back Exhaust 03 04 05 06 07 08 Crossfire 3 2L V6 Convertible | eBay