4" Downpipe Back Single No Muffler| 2017-2019 GM 2500/3500 6.6L DURAMAX L5P

If you want the best exhaust for your 2017-2019 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.