DOWN PIPES

2015.5-2016 GM 6.6L DURAMAX LML   The MBRP GM8428 3" Turbo Downpipe for your 2015.5-2016 GM 6.6L Duramax LML. Removing the restriction in the factory downpipe results in lower EGTs and increased...

2011-2015 GM 6.6L DURAMAX LML   The MBRP GMCA427 3" Turbo Downpipe eliminates the restrictive factory downpipe in your 2011-2015 GM 6.6L Duramax LML. Featuring a mandrel bent aluminized steel...