The MagnaFlow 2008-2009 Pontiac G8 Street Series Axle-Back Performance Exhaust System brings enhanced engine sound and dyno-proven performance to your 6.0L, 6.2L 2008-2009 Pontiac G8 with a healthy helping of our deep, resonant signature exhaust note at Moderate exterior and Mild interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this Pontiac G8 exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features an axle-back layout designed to replace your Pontiac G8's exhaust system from near the rear axle on back. With its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Quad Split Rear exit with 3in. Polished Welded-On Double Wall Angle Cut Rolled Edge tips, your ride will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 16883 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow's 1-year limited finish warranty and limited lifetime construction warranty.