11-16 Duramax LML MBRP 3" Downpipe Fuel Cycle testing shows ARP High

Cycle testing shows ARP High Performance rod bolts to be nearly five times more reliable than stock bolts

it works off your OEM hardware

Will not work on early 1999 PowerStrokes (build date 03/21/99 and earlier)

Relay Control Wiring Harness

Whether towing a fully loaded car trailer or a 5th Wheel Camper

11-16 Duramax LML MBRP 3" Downpipe Fuel Cycle testing shows ARP HighThe MBRP 3" Turbo Downpipe provides a smoother flow from the turbo in your 2011 2016 GM 6. 6L Duramax. Removing the restriction in the factory downpipe results in lower EGTs and increased performance. The down pipe is relatively easy to install due to the precision bends that youve come to expect from MBRP. FEATURES: Greater Heat Retention 20% Greater Flow Over Stock Richer Diesel Sound Will Not Affect DPF or Urea System Gains of +21HP & +24 Ft lbs.