MagnaFlow Street Series Cat Back Exhaust System Stainless Steel Gas MagnaFlow 15333 MagnaFlow Series Stainless Steel Dual Cat Back MagnaFlow Street Series Cat Back Performance Exhaust System 15363 MagnaFlow Cat Back Exhaust System Stainless Steel Gas MagnaFlow. The MagnaFlow 2006 2007 Chevrolet Monte Carlo Street Series Cat Back Performance Exhaust System brings out the personality of your 5. 3L 2006 2007 Chevrolet Monte Carlo with our signature resonant, powerful engine tone and dyno proven performance. Thanks to its fast flowing, mandrel bent 2. 5in. main piping and 3 Straight Through mufflers ending in a Dual Split Rear exit with 4in. Polished Welded On Double Wall Angle Cut Rolled Edge tips, this Chevrolet Monte Carlo exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Chevrolet Monte Carlo's to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 16727 features a cat back layout that replaces your ride's stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct fit design that you can easily install yourself. 16727 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow's 1 year limited finish warranty and limited lifetime construction warranty.