can i make a recommendation in my own opinion. here is the best set up for a non forced induction aplication.
cobalt addiction header, xtc dowpipe, and for exhaust, either gmpp sport,megan catback,or dc. all of them are surg grad stainless and sound great.
pacesetter sounds like a bee in a tin can
magnaflow sound extremely raspy and loud
vibrant is a 3" exhaust and sound extremely loud not to mention 3" is to big unless your turbo'd
borla sounds amazing "little secret.. guess who contracted borla to make there exhaust" hint.."look at the gm exhaust then the borla"
i no nothing about the corsa exhaust.