Also if you drive on the freeway add the rear swaybar. Best possible mod you can do to this car other than lowering it. It truly helps with the body roll issues and helps the car feel more stable. I went with the Whiteline and it is amazing. Im not sure if it is interchangeable between the 2007 which is what I own. Heres a link to it. https://www.amazon.com/dp/B0070I9VKU?ref=ppx_pop_mob_ap_share
Whiteline in the rear, its 2 point adjustable. Here's a link. BTR86Z https://www.amazon.com/dp/B0070I9VKU/ref=cm_sw_r_apan_i_F45BKE0J79PSEGBSQZWV?_encoding=UTF8&psc=1 DC Sports front bar DC Sports CSB1404 Front Carbon Steel Strut Bar for Toyota Yaris (Single) regular https://www.amazon.com/dp/B004SUT7CA/ref=cm_sw_r_apan_i_6TK9Z6VN9SGTTZHREF90?_encoding=UTF8&psc=1
https://www.amazon.com/dp/B0070I9VKU/ref=cm_sw_r_cp_apa_glt_fabc_4425GYXKRXW5MTFS92GX
When I Google searched it I thought it may have been compatible with other years, I looked it up under your year and it looks like it should fit.
Whiteline Racing-https://www.amazon.com/dp/B0070I9VKU?ref=ppx_pop_mob_ap_share