Toyota Racing Development (TRD) in Japan has designed cosmetic and performance bits that give the 2014Lexus IS a front-to-back workover. Different from the F-Sport parts we expect from Lexus here, the full body kit runs 437,700 yen ($4,285 US) and starts with air deflectors at the lower edges of the front bumper, through to side skirts, a decklid spoiler and a rear bumper with a diffuser and quad exhaust tips.
http://www.autoblog.com/2013/05/20/2014-lexus-is-gets-trd-bits/