Don't get me wrong, borla is a great exhaust, excelent finish, great welds, & T304 stainless, and sounds pretty good. But on the other hand is very pricey because of the name & material used=T304. Any stainless exhaust is going to run anywhere from 500-800 dollars, though Gibson exhausts are prob. going to have the cheapest price on stainless exhaust because they use a lower quality stainless that will get surface rust, but not rust all the way through.
I don't know where you live, but if you live in snowy conditions with alot of salt on the road, then yes go with a good quality stainless. But if you live anywhere near me in Cali or any other sunny state than I personly think stainless is a waste of money for somthing that gives 8hp max & you can't even see it, except for the tip.