I need to know if i have to buy the front alignment for my hhr when i buy the goldline lowering springs?
Will it actually matter or would it be better if i did buy them?

I didn't use mine when I did it..if you are talking about the kit for the springs, still have em in a box in case they are needed some day

Yes you will need an alignment.....changing the ride height will change the "toe" setting and that's what the tech will correct.

On mine, I needed an alignment, my wife's didn't. I'd install them just in case. Easier to have them on than to have to go back and put them on later.

Believe it or not I had to install the camber bolt on the passenger side and not on the driver side :roll:! Things that make you go HMMMMM.....

Always get the alignment checked after changing the ride height. the toe should be out of factory specs by just a bit, not a big deal but you will notice inside tire wear over time.. Mine was only out 0.02 degrees from the factory specs..