Yup. That's a sedan's exhaust. Mine to be specific. 5th set up I am trying on a na vq engine but only the 3rd I put on one of my vhr's, and the others were 3.5's. this fits my 09 G37xS so it should fit any 3.7L 4dr. Fell in love with this set up as I ALWAYS hated my various sedans y-pipes. 😉Has a graduated width all the way through. Dual OBX canisters too. Looks great. Good welds. tips of the actual exhaust are a little big@ 4.5inches and then they added on 6" tips, Overkill imo. OBX branded.