When lowering a car, each car is going to react a little differently, you will not know whether you are going to need a camber kit until you lower it and get an alignment. Some people have lowered their cars 1.8 and did not need a camber kit. Others have only gone 1.4 and did need one. Also if your toe is out, that will eat your tires up alot faster than the camber problem so make sure you get that aligned asap after lowering. When i lowered mine my toe was way off and my tires suffered because of it.