Looking to boost the performance of your 2007.5-2010 GMC/Chevrolet Duramax truck? MBRP has you covered with their 4" filter-back exhaust system. This system is constructed from black coated aluminized steel for superior durability, and it comes with a black coated tip for a sleek, finished look. With this exhaust system, you'll see an increase in horsepower and torque, as well as improved fuel economy. So whether you're looking to add some extra pep to your ride or save some money at the pump, MBRP has the perfect solution for you.