2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Single-Exit Kits

Enhance your 2011-2016 GM 6.6L truck with a high-quality single-exit exhaust system from Alligator Performance. Tailored for the GM 2500HD/3500HD, these aftermarket systems improve performance while giving your 6.6L engine a bold, aggressive sound. Built with precision using durable, premium materials, these single-exit kits optimize airflow for significant performance improvements. Many options also include aggressive-styled tips to elevate your truck's appearance. Whether on the street or off-road, these exhaust systems will elevate your sound profile while eliminating unwanted drone. After upgrading to a single exit DPF-back exhaust, check out our selection of Air Intakes for further air flow and performance improvements! GM Duramax Fitments: 2011, 2012, 2013, 2014, 2015, 2016 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.