Steed Speed Upgraded Replacement Exhaust Manifold For 4BT 3.9L Cummins 2023-2025 GMC Sierra 3500 5" mandrel-bent tubing improves airflow

5" mandrel-bent tubing improves airflow and performance

Oracle Dynamic ColorSHIFT Pre-Assembled Headlights Black For 2015-2017 Ford F-150 - Black Edition

The Fluidampr Sensor Relocation Kit 300003 relocates the engine speed sensor when running a Fluidampr Performance Diesel Series Damper on your 92-98 Dodge 12-Valve truck

Constant-tension worm gear clamps keep a strong grip as pipes and boots expand and contract

lower strut extensions

Steed Speed Upgraded Replacement Exhaust Manifold For 4BT 3.9L Cummins 2023-2025 GMC Sierra 3500 5" mandrel-bent tubing improves airflowSteed Speed Upgraded Replacement Exhaust Manifold For 4BT 3. 9L Cummins Steed Speed Manifolds are CNC Machined from 1018 Mild Steel Billet and finished with a satin black coating of Techline, these aren't your typical cheap cast or tubular manifolds. Steed Speed engineers some of the finest manifolds on the planet. The Techline coating is capable of handling up to 1700 degrees continuously and up to 2000 degrees for short periods. Steed Speed