MagnaFlow Sys C/B 08 Hummer H3 5.3L V8

This MagnaFlow Street Series cat-back exhaust system is built for your 2008-2010 Hummer H3 with the 5.3L V8 engine. What you get in this kit is the main piping, two straight-through mufflers, and the dual rear exit tips. It replaces your stock exhaust from the catalytic converter back, giving your H3 a more aggressive sound and a sportier look. The system features 2.5-inch diameter main piping and ends with 3.5-inch polished, double-wall angle-cut tips with a folded edge.

MagnaFlow uses durable, corrosion-resistant stainless steel for this system, ensuring it holds up well over time. The piping is mandrel-bent to maintain consistent diameter for better exhaust flow, which MagnaFlow says is dyno-proven to improve performance. You can expect a moderate exterior sound level and a mild interior sound, so it’s noticeable without being overwhelming. The design is a direct fit, meaning it's made to bolt up to your H3's factory mounting points, making installation more straightforward. MagnaFlow backs this system with a 1-year limited finish warranty and a limited lifetime construction warranty.