MBRP Stainless 3 inch Downpipe 2011-2015 Duramax LML Injection Pumps Because your truck demands commercial-level

Because your truck demands commercial-level durability

but we can confirm these can work and do look great as well

we noticed that the drop shackles on the market would drop the rear too much

can be purchased separately

Install Guide

MBRP Stainless 3 inch Downpipe 2011-2015 Duramax LML Injection Pumps Because your truck demands commercial-levelLet MBRP Black Series downpipes assist you with your quest for power! Every enthusiast is looking for more power, and during your search, you've possibly overlooked the restrictive factory downpipe on your rig. Mount MBRP downpipes between your factory turbo and exhaust system for a deeper sound, lower EGTs, and quicker throttle response. These Black Series pipes are crafted from 16 gauge, mandrel bent steel for maximum flow; and they're coated with