I'll second the vendors/sponsors comment here. I contacted Beefcake and got a great deal, awesome service and quick shipping. I picked up the black MBRP, but can't comment on it yet since it's not installed.
My buddy had the MBRP Street exhaust on his car. It was better than stock but it sounded like a very generic v8, almost boat like. His new car has Borla S-Types ( a mild setup) and it sounds exponentially better. I wouldn't go MBRP to save money.
My car came with the H-pipe and mufflers in my signature. I think the mufflers are like $90 each...lol. So previous owner got the exhaust done cheap. But it sounds awesome. I wouldn't change a thing. No drone and not crazy loud either. I've only gotten compliments on how mean it sounds.
Corsa. You said cheaper, so get the sport axleback with silver tips, that's cheapest, and PM all the vendors here for their best price, go with the cheapest one. Yes, you have to cut the mufflers off, but the corsa instructions are good and clear, there's some wiggle room even if you screw up. You can rent an exhaust cutting tool at the auto parts store for a 100% refundable deposit, if you don't have a sawzall.
Corsa is the perfect sound for these cars, absolutely no drone in any gear at any speed or RPM. There's a reason every exhaust thread on this forum just ends up as a bunch of replies saying Corsa. They sound amazing. I floor it every time I'm under an overpass or next to a wall just to hear it.