This is a brand new unused set of Kooks stainless steel long tube headers that fit the 96-04 Mustang GT with 4.6L 2V. Headers are 1 5/8" with 2 1/2" collector. Mids and X-pipe are matching 2 1/2". Nothing has ever been mounted and the hardware is still sealed in the original packaging. Includes cat-less mids, X pipe, headers, mounting hardware, exhaust gaskets and O2 extensions. Asking for $1200 for everything plus shipping. I have pictures of everything and can email them upon request.