The new 2012 Honda Civic Si is powered by the new 2.4-liter engine delivers 201 hp at 7000 rpm and 170 lb-ft. torque at4300 rpm, an improvement of 4 hp and 31 lb-ft. of torque compared to the previous model. A sport-oriented six-speed manual transmission sends power to a helical-type limited-slip differential (LSD). The LSD