One end is 72mm & the other end which is closer to MAF is 80mm. Can be cut, stretch or hose clamp down to make it fit if dimension is close enough. I have test fitted on a car & had no problem when the MAF end of the silicone hose is 1 or 2mm wider that air box outlet. Just need a hose clamp to clamp down. If you want, you come try fit it first before you buy.