If you have shortened the springs - don't, thats bad news. Buy a decent set of springs (no, not Kings - Whiteline springs will be good), and shocks (your current ones are prolly the standard ones and are as old as the car). Buy a set of Koni Yellows.

I don't know the size of the SiR rear stab bar is, but you'll prolly need more.

Since you own an EF CRX, you should also look at winding on a few degrees of Castor.

Also - Tyres.