MagnaFlow SYS C/B 05-06 Pontiac GTO 6.0L 3inch

If you're looking to give your 2005-2006 Pontiac GTO a more aggressive exhaust note and unlock some extra power, this Magnaflow Competition Series cat-back system is a solid choice. It replaces your factory exhaust from just after the catalytic converter back, giving your 6.0L engine a deep, resonant sound that demands attention on the outside while remaining manageable inside.

This system uses 3-inch diameter, mandrel-bent tubing made from 409 stainless steel. Mandrel bending means the pipe maintains its full diameter through the bends, allowing exhaust gases to flow more freely than crush-bent pipes. This improved flow can lead to increased horsepower and torque. The Competition Series is designed for an aggressive exterior sound, with a more moderate interior tone, so you get the performance feel without excessive cabin noise. It exits at the rear with a dual split, featuring 4-inch polished stainless steel tips with a folded edge for a sporty look.

Installation is made easier thanks to Magnaflow's direct-fit design, which utilizes 3D scanning to ensure it lines up with your GTO's factory mounting points. The entire system is built from durable, corrosion-resistant stainless steel and produced with precision robotic manufacturing. Magnaflow backs this system with a limited lifetime warranty, giving you peace of mind.