MagnaFlow Sys C/B 08 Hummer H3 5.3L V8The MagnaFlow Hummer H3 Street Series 16832 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 Double Wall Angle Cut Folded Edge tips, this Hummer H3 exhaust kit has the performance chops to match its sporty