
The Diamond Eye Performance DPF-Back Exhaust K4156A is designed for 2011-2012 GMC Sierra 2500/3500 HD & More. This component installs downstream of the factory diesel particulate filter while retaining the upstream emissions equipment. Key listed details include 4 in primary diameter, Aluminized Steel, DPF-Back Exhaust.
Fitment Note: Designed to retain the factory DPF and upstream emissions equipment. Confirm the exact vehicle configuration, manufacturer part number, pipe dimensions, and required installation hardware before ordering.