You'd be lower in the back, i think by about 3/4 of an inch-
-as far as i was able to find, your car will only ride evenly with these springs and their matching OE tokico blues (not HPs) from a mazdaspeed protege (and not from an MP3). Hence, they're a bit of a tough sell.
I also see a lot of shock absorbers marketed as being compatible with the mazdaspeed and regular protege/p5; they'll work on both cars but i don't believe they'd work with the MSP's springs.
Gotta' be stock blues or aftermarket struts made just for the mazdaspeed (which i've never seen and don't believe exist) to use the stock springs.
Also, if you buy those staggs... please post a review after like 80,000 miles, because as far as i can find one doesn't exist. There's a lot of people saying, "i bought them and after a couple weeks they're great!" (then the thread dies, then the thread get's revived by someone saying "hey are these good?").