I have a set of Kooks Jet-Hot coated equal length mid headers w/ the mandral bent downtubes w/ out cats. And attached to the down tubes are exhaust dumps so you can run open headers at the track. By opening up the dumps...I dropped .3 of a second of the 1/4 mile time. Nothing is bent, and is in excellent shape. I'm asking $400 for it all. thanks, doug 573-230-2307