I am looking to purchase Tein Basic coilovers and was wondering if i can reduce the negative camber with an alignment? Or is the only way to reduce the negative camber is by buying a camber kit?

 

this is true for the front

 

if you buy tein coilovers, and don't lower it, and keep at stock height you don't need a camber kit. but if you drop more then an inch, you should get a camber kit.

 

The rear has a little camber adjustment but not much, so you will likely need camber arms if you lower it more than an inch or so. The front has not camber adjustment, so you just have to hope it settles within specs.