Which cat-back system should I get?

Here's the list for 97 Honda Accord LX Non Vtec:

5 Zigen Fireball Cat-Back Exhaust System (94-97 Accord Non VTEC) $389.95

DC Sports Stainless Steel Cat-back Exhaust (94-97 Honda Accord 2DR/4DR) Reg. $549.95 Sale $485.95

Apex World Sport Cat Back Exhaust (94-97 Accord All) $439.95

Tanabe Super Medalion Racing Spec Cat-Back Exhaust System (94-97 Accord) $589.95

Tanabe Super Medalion Hyper Spec Cat-Back Exhaust System (94-97 Accord) $529.95

Greddy Evolution Cat Back Exhaust (94-97 Accord) $495.95