I've found most of the sites you'll find via a google search to be fairly similar. Depending on the exact part your looking for and where you live (factoring into shipping rates), it's easy enough to try the first few sites and you'll see that they are all fairly competitively priced with one another. I found a thing or two that was maybe 5-10% cheaper at one versus another, but after I started the checkout process I found that the shipping differences made the latter site 5-10% cheaper. It takes a hot minute to do this process, but if you're a penny pincher like me it makes you feel better about your purchase. The sites I usually peruse are mykiaparts.com, kiaparts.com, kiapartsnow.com, kiapartsonline.com. Mykiaparts.com was the cheapest in the long run on MOST of the stuff I ordered, and shipping was very fast. You'll find that a lot of parts are the same price on all the sites, so it really comes down to which one offers the best shipping rates to your area. Cheers