According to toyos site they are specifically designed for IRS cars. This place in addison has them for $164, if theyre a good tire the price is right.
http://www.tiredeals4less.com/TOYO_Proxes_TQ_P315_35R17_LL_P5128C916.cfm?UserID=1489716&jsessionid=ea30ca57ecbf2a305822
http://www.tiredeals4less.com/TOYO_Proxes_TQ_P315_35R17_LL_P5128C916.cfm?UserID=1489716&jsessionid=ea30ca57ecbf2a305822