DANGER! WARNING- RETURNS ARE NEXT TO IMPOSSIBLE!!! I too received 2 wrong parts orders, totaling over 600 dollars, and never received an email with my return authorization number. Every time I called I got a person that could barely speak English, and they assured me I would get an email in 2-3 days with my return number- never ever got that email. So I disputed the charges with american express, and then autopartswse managed to find someone to fill in 30 pages of what I did wrong, and why I should be charged for all this stuff thats wrong, and a copy of their 21 day return policy, but could never call or email me with a return number. I have re-opened a dispute with am ex, and am waiting for the results, but I believe they will screw me again. BEWARE OF THIS SITE!!!