It doesnt fit :*( Same thing happened with me.
So i just got a hack saw and cut a bit of the arm off... yeh it may make the arm weaker and more vulnerable, but i havent had any problems since doing this, and i can't run my car without the lights
Yes you will need to trim the front inside of the upper A-arm. It's easily done with a dremmel tool or you can shave it off little by little with an exacto knife.
The RPM arms are still plenty strong after removing the material, you only need to remove .160 inch or about 4mm