I have the H&R Race springs and it says if I cut the jounce bumpstops by 1" the car will be .5" lower...
HOW??? the car doesn't rest on the bumpstops... or does it. I thought they only control the shock stroke length NOT vehicle height
Has anyone done this and had their car sit lower?? I want my ride to be lower
If you cut it does it matter if you cut from the top or the bottom?

instructions that came with the springs:
"have been designed with custom fine tuning features which allow you the option of an additional .5" lowering. The normal lowering for H&R Civic Race springs is approximately 2.25" front and 2.0" rear. To obtain this extra .5" lwering the stock jounce bumper may be trimmed 1.0" or the custom H&R jounce bumper may be used. This will provide an approximate lowering of 2.75" front and 2.5" rear."

 

cutting the bumpstops will only let your suspension travel down lower. It means that when you hit a bump with lowering springs and you dont have the bumpstops cut that you will probably get a really harsh ride from hitting the bumpstops. If you cut them then the suspension will be able to travel a little farther and you wont hit the bumpstops and the ride will be better.
And NO it will not make your car lower, it just lets your suspension travel a little farther.