11-19 Duramax LML L5P MBRP 4" Installer Series Exhaust System EFI Live in most cases a +

in most cases a + 2Mpg has been reported

and 1/8 inch port plugs for a quality install

Supplied harness attaches directly to battery and utilizes Deutsch weather-proof connectors

With upgraded components and a design that focuses on power and efficiency

With performance modules for the 5

11-19 Duramax LML L5P MBRP 4" Installer Series Exhaust System EFI Live in most cases a +MBRP's AL INSTALLER Series 4" DPF Back Exhaust kit with an aluminized steel finish for your 2011 2019 GM 6. 6L Duramax LML L5P diesel truck. This kit uses a single side exit and comes with no muffler, but comes with a polished stainless exhaust tip.