The MagnaFlow 2008-2010 Hummer H3 Street Series Cat-Back Performance Exhaust System brings out the personality of your 5.3L 2008-2010 Hummer H3 with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 3.5in. Polished Welded-On Double Wall Angle Cut Folded Edge tips, this Hummer H3 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 Hummer H3'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 16832 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.
Features
- Durable Corrosion-Resistant Stainless Steel Construction
- CNC Precision Robotic Manufacturing Techniques
- Dyno-proven performance
Listed for 1 vehicle: the fitment table on this page shows each year, make and model it fits.
MagnaFlow Sys C/B 08 Hummer H3 5.3L V8
Vehicle fitment
Estimated fitment — verify before purchase| Years | Make | Model |
|---|---|---|
| 2008 | Hummer | H3 |
- Engine: 5.3L
Specifications
Manufacturer data for this part — all visible, no tabs to dig through.
| Brand | Magnaflow |
| Part number | MAG16832 |
| Category | Exhaust & Performance |

Worth adding
Useful in any truck — ships separately in its own box.
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