hookers are for trash
Go with the tri-y's. everyone in my group has had nothing but glowing comments about them. If you hate yourself (like I did) and you are on the cheap, the hooker headers can be installed... but trust me, lots of knuckle busting, lots of "WTF was this engineer thinking!" and lots of modifications (putting dents in pipes so you can just get the bolts up to the header!
Hell, I went and got new bolts, threw away the ones that came with mine, bought strong washers, ground them down to fit around the bends, and used those to help get the right fit.
Trust me, go with the tri-y's! ;-)