Those calipers came in 2 sizes, one for N/A, and one for turbo, sizes 30 and 35 mm I believe. BTW these will fit an 04 and up Sentra SER Spec V as well ( I have em on mine, lol). Good luck with the sale!
That’s true for the aluminum ones, the cast iron ones were 35mm unless my Nissan expert lead me wrong, lol. Had the joy of measuring and fitting them on my Spec V. They do work pretty good and are compatible with ABS systems as well. Only other thing I could add is make sure to get better pads than the stock ones, they suck for high speed braking, they fade almost immediately. Going from 160+ kph down to normal speed takes a while longer than I expected.
That’s no fun, I enjoy having a snail again, lol. Besides, I love the look on the guy’s faces driving G35’s or 350’s when they get their doors blown off by a Sentra.