The 2008–2010 Subaru WRX STI was something of an enigma, a bit like people who enjoy eating headcheese. Stiffer springs, thicker front and rear anti-roll bars, revised front control arm bushings, and firmer rear subframe bushings all have been fitted. Unlike the WRX, the STI features the adjustable SI-Drive system that allows the pilot to tune throttle response, and there are also multiple modes