you car is already gonna bottom out like a son of a bitch with a coilover spring, if you cut it down to 4 coils you may as well remove the springs altogether. if you put the collar on top of the spring and tighten the collar down (which will be areally hard to do cause you would be tightening against the spring) then you will be making the spring have even less travel. your best bet is to get some cut springs for the rear, i haev cut tenzos cause i never need to adjsut the rear. either that or just grind off the perches
