4" Cat Race Pipe | 2011-2015 GMC/Chevy 6.6L Duramax

If you want the best exhaust for your 2011-2015 GM 6.6L, look no further than this premium exhaust system by Mel's Manufacturing. Replace your restrictive factory exhaust with a Canadian made, 16-gauge aluminized steel, direct fit upgrade to your diesel. Whether you are looking for better fuel economy, better performance, or just a better roar from your tailpipe, Mel's Manufacturing exhaust kits have exactly what you need.