Not a wise idea!

I had an Impreza with those crap springs. When I got it the bloke said its got sports suspension! pmsl
Anyhow, when it had its mot and the car was in for some work, they dropped it down off the jack and where the front springs were too short they didn't sit in the cups on the shocks and made it a danger to drive.

So I would highly reccomend DON'T DO IT!