MagnaFlow Sys C/B 05 Grand Prix GXP 5.3L V8

Magnaflow is well-known for creating exhaust systems that give vehicles a distinct, powerful sound and improve performance. This Street Series Cat-Back Performance Exhaust System is built specifically for the 2005-2008 Pontiac Grand Prix GXP with the 5.3L V8 engine, designed to bring out the full personality of your car. It replaces your stock exhaust from the catalytic converter back, giving you a noticeable upgrade in both sound and power.

This system features a fast-flowing, 2.5-inch main pipe that's mandrel bent to ensure smooth airflow, which is key for dyno-proven performance gains. It includes three straight-through mufflers that produce a moderate exterior sound level and a mild interior sound, so you get an aggressive tone without excessive cabin noise. The system exits at the rear with a quad split setup, featuring 4-inch polished, double-wall angle-cut tips for a sporty look that matches the improved sound. The construction uses durable, corrosion-resistant stainless steel, and it's manufactured using CNC precision robotic techniques for a solid build.

Thanks to extensive 3D scanning during development, this cat-back system is designed for a direct fit, making installation straightforward. You'll get a system that not only sounds and looks great but also performs well, leaving other Grand Prix models envious. This exhaust kit is backed by Magnaflow's 1-year limited finish warranty and a limited lifetime construction warranty.