Ok, so I need to replace the cats on my dual cat setup. Stock 305. I would also like to put on a hooker cat-back, but they don't make one for a dual cat setup. Looking for opinions on whether to keep the dual cats, and the stock catback (It has an hooker aerochamber now, but it's on its way out), or switch to a single high flow cat, and the hooker cat back. Any thoughts?