The Sonic Performance High Flow Exhaudst system sounds and looks greaT, with chrome stainless steel tip proudly showing the Chevy Bowtie to your friends! This low-restriction system and included dealer-installed calibration will provide 10 more HP (up to 149 HP) and 10% increase in torque (+15 ft.-bls.) Kit includes exhaust system, calibration, premium fuel and new 50 state legal emission certification label.
NOTE: 2012-2013 vehicles require a new high capacity 2014 manual clutch. See your dealer for Service Part Number information.

89021297 2012-2014 Knuckle Bolt Thread Locker