Doesn't fit series 91 or even 98. The upper hose is too long but will probably fit if cut off. The bottom hose, on the other hand, has the wrong angles, inlet and outlet placement, and is about 8 inches longer than it can be cut. I emailed Mishimoto and attached a photo of the reply. Total BS. All US b13 and b14 SE-R hoses are the same size.