Upgrading vehicles exhaust system is a great way to build horsepower, free up trapped torque, and improve upon restrictive factory systems. The larger pipes, low-restriction mufflers, and tuned resonators of a well-designed performance exhaust system can make a world of difference on your vehicle. The net result is lower auto exhaust backpressure, more horsepower, more torque, and a much better sound. Compatible With CRUZE 2011-2015; Compatible With CRUZE LIMITED 2016; Compatible With SONIC 2012-2017; Compatible With SATURN ASTRA 2008-2009; Fits Models with 1.8L Engines; Fits Federal Emissions Models Only; NOT Legal for sale or Use in California, New York, Or Maine Emissions Models