Anyone know the difference of the spring length between the 16" and 18" suspension?

The RX with the 16" wheels has upgraded Tokico DSK suspension & Springs but the car is wayyyyyy to low. I am also planning to change to bigger rims.

So i was wondering if i could put on the springs from my friend GT model that came with 18"wheels on the base model.

I don't think there is a difference in springs between the base and sport suspensions. I know that the sway bars are different both front and rear though.

Even if they are different, you shouldn't have a problem installing the GT springs onto your car. You will end up at the stock ride height though.

So I just looked and online mazda parts lists different parts for the springs for the sport vs base. I guess they are different. Either way, you should still be able to fit them on your car with no problem.