2006-2007 GM Duramax 6.6L LBZ Single-Exit Exhaust Kits

The stock exhaust system on your 2006-2007 GM 6.6L Duramax LBZ is unfortunately pretty quiet, so if you to give your Sierra/Silverado a brand new sound without changing up the look of your truck, you'll need one of these premium single-exit cat-back exhaust systems! The aftermarket exhaust systems we offer were crafted using advanced design technologies and only high-quality materials to help maximize airflow and performance gains in every situation. Many of these kits come equipped with aggressively styled tips and powerful mufflers, while others come standard without an exhaust tip so you can choose your desired look. Pair any of these systems with an aftermarket cold air intake or performance tuner to unlock even more potential hidden under the hood of your 2006-2007 GM 2500/3500. GM Duramax Fitments: 2006, 2007 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.