Want to unleash a bit more power and a meaner sound from your 2005-2010 Chevy Cobalt or 2007-2010 Pontiac G5 (both with the 2.2L DOHC engine)? This Auto Dynasty catback exhaust system is a great place to start. It's designed to reduce backpressure and help your engine breathe better – which can mean gains of around 15-25 horsepower and some extra torque. Built from high-quality T-304 stainless steel with mandrel-bent pipes and TIG welding, it's made to last and resist corrosion. The 3.5-inch burnt tip gives it a sharp, aggressive look. Best part? It's a direct bolt-on replacement, so no cutting or drilling is needed. Everything you need for installation is included: the full catback system, plus all necessary gaskets and hardware. Specs: inlet is 2.25\ OD, outlet 2.35\ OD, and the whole thing weighs about 23.5 lbs. Upgrade your ride's performance and sound without the hassle!