i got the reg undertail b 4 i got the bike painted, and now i see they ave a +6 undertail. the 1 im looking at is.... if u go to their website click products, 99-07 busa, and scroll down to the bottom. its not the catalyst undertail, or the +6 undertail but it is the +6 catalyst undertail (u can see the difference when u click on the pics) i beleive the product # is BUSATUN699. anywho. if anyone has this and for a tail light (since i have 1) plz lmk, looking to buy to finish bike.