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 ENCLAVE 2008-2015; Compatible With TRAVERSE 2009-2015; Compatible With ACADIA 2007-2015; Compatible With SATURN OUTLOOK 2007-2010; Front Left; Radiator Side 3. 6L; NOT Legal for sale or Use in California, New York, Or Maine Emissions Models