I always get a kick out of people that say "Oh yea I dropped the car a year ago and never changed the struts and the car is great!" Right. Stock struts are not designed to handle the additional forces that are associated with installing stiffer springs. Period. Take a ride in a car that had the suspsension modified the right way the first time and you'll notice the difference. Do yourself a favor and do it the right way with new springs and new struts. Get an alignment after that. If there's one thing that you shouldn't half-ass when it comes to modifying your car, it's the suspension.