+1 on steeda tri-ax
both mgw and steeda are good one's! i love my tri-ax. install was a breeze(and good time to do tranny fluid if you're about ready, or have never done it!). i also got a PHENOMENAL price on mine. $165 shipped, brand new.
of course you can always $ave buying used if you're comfortable with that, or aint got the scratch for new. try craigslist in your area, as well as ebay.