Ok So I am pretty sure that I need new struts and at 100,000 miles it doesnt really suprise me. But how do I check to make sure that the sturts is really the clunking noise and then where should I go to get struts because auto-zone and other autoparts stores don't seem to carry them, and i'm sure the dealer is going to be expensive. Also would it be worth it to put in performance struts or would it end up doing more harm than good.

Thanks in advance~