the sport concept Civic Si at SEMA and also showcased 19 2006 Civic Sis, customized by aftermarket companies like AEM/DC Sports, Mackin, Greddy, Tein, Hasport, and others. Also shown with the Si are Honda's new Factory Performance (HFP) suspension and body kits, available for the '06 Civic sedan, coupe, and Si. The kits include performance-oriented suspension components, larger wheels, aerodynamic body kits, and HFP muffler.
