The MBRP GMCA428 3" Turbo Downpipe will replace your restrictive stock downpipe in your 2015.5-2016 GM 6.6L Duramax LML. This aluminized downpipe features 3” mandrel bent steel and offer better flow that results in faster turbo spooling while reducing EGTs. Each downpipe is coated in a high-heat satin black finished and wrapped in a heat resistant exhaust wrap for added security. With precise mandrel bends and CNC machined flanges, this downpipe is a direct fit replacement with no modifications required for installation.
Features:
- Lower EGTs
- C.A.R.B. EO # D-763-2
- Increased Performance
- Coated & Heat-Wrapped
- Aluminized Steel Construction
Note: This Downpipe is only for the 2015.5-2016 models with the 3-bolt flange. It will not work on late model 2011-2015 models with the V-band connection.