Ive got a brand new set of Kooks headers with the catted X pipe for sale new in box! Never installed! Includes the extension O2 harnesses. Retail is 1563.00 plus shipping. Ill let them go for $1400.00 including shipping to anywhere in the lower 48 states. I went with the Kenne Bell and was advised not to do the headers with the twin screw setup. Thanks!