MagnaFlow Sys C/B 04 Pontiac GTO 5.7L V8

If you're looking to give your 2004 Pontiac GTO a more aggressive sound and improved performance, this MagnaFlow Street Series cat-back exhaust system is a solid choice. It's designed to bring out the personality of your 5.7L V8, giving you that signature MagnaFlow resonant, powerful engine tone that you can feel and hear. This system replaces your stock exhaust from the catalytic converter back, so you're getting a complete upgrade for better flow and sound.

Built with corrosion-resistant stainless steel, this exhaust is made to last. The main piping is 2.5 inches and uses mandrel bends to ensure smooth airflow, which helps with the dyno-proven performance gains MagnaFlow is known for. It exits on the driver's side rear with dual 3-inch polished tips that have a nice angle cut and double wall construction, giving your GTO a sporty look to match its sound. You can expect moderate exterior sound levels and mild interior sound, so it's noticeable without being overwhelming.

MagnaFlow uses CNC precision robotic manufacturing for a consistent build, and they've used extensive 3D scanning to make sure this system is a direct fit for your 2004 GTO, making installation straightforward. It comes with a 1-year limited finish warranty and a limited lifetime construction warranty from MagnaFlow.