Steed Speed

Steed Speed Cummins 3rd Gen Style exhaust manifold with T3 flange. This no-compromise solution is the perfect choice for pairing with a larger drop-in style turbo on your truck for maximum flow and performance. We recommend them specifically for use with...

Shown here is T3 manifold with Straight flange. The manifold comes complete with all gaskets and turbo mounting hardware.  

Competition manifold with straight T4 flange and 2.5 inch V-band EWG port. This header has been designed for those who are pushing the extreme limits with their Cummins.  Passages are bigger than the standard manifolds with revised passage...

Shown here is T3 manifold with angled flange. The manifold comes complete with all gaskets and turbo mounting hardware.  

Shown here is T3 manifold with Straight flange. The manifold comes complete with all gaskets and turbo mounting hardware.  

Shown here is T4 manifold with angled flange. The manifold comes complete with all gaskets and turbo mounting hardware.  

This manifold features a turbo flange facing straight out with two separate wastegate ports either side of the turbo flange.  Manifold comes with all gaskets and turbo mounting hardware. This manifold is ideal for those with custom turbo setups and...

This manifold features a turbo flange facing straight out with a single divided wastegate port centered on the turbo flange.  Manifold comes with all gaskets and turbo mounting hardware. This manifold is ideal for those with custom turbo...

This Steed Speed manifold is a direct replacement for your 98.5-02 Cummins when using any aftermarket T3 Style turbocharger. These also work great with the 2ND Gen swaps from 03-19 Cummins 5.9 and 6.7 Engines. Steed Speed Manifolds are CNC Machined from...

Shown here is T4 manifold with angled flange. The perfect choice for upgrading to a larger turbo for your truck. The manifold comes complete with all gaskets and turbo mounting hardware. These manifolds are manufactured to fit a 2nd Gen Cummins...

Designed for twin turbo applications this manifold is intended to be run with the turbo flange facing up and has a wastegate on the short side which would then be facing up and is offset away from the turbine housing to give clearance to the wastegate...