We feel very strongly about keeping an oval port flange. This allows the transition from the oval exhaust port to the round runner through the runner itself, not in the 1/2” length of the flange. Each runner, from the head flange to the turbine inlet, is an extension of the exhaust port and is designed for the smoothest transitions possible in order to shuttle each exhaust pulse with careful violence to the turbine wheel.
Please note: while several other manifold fabricators – whom we have the utmost respect for – use the transition flanges on their pieces, they simply are not for us.

We hope you notice that you were kept in mind while deciding on fastener placement and routing. Easy to access hardware and quick assembly/disassembly. From the initial install with no unforeseen surprises or while putting in work at the track- you shouldn’t have to dread working on your vehicle.

Critical turbo placement and routing; a great manifold is nothing without proper placement. It not only defines the build but should allow every piece of the puzzle to work together; clearing the confines of the engine bay without sacrificing efficiency as a component or a working system. This is why we strongly recommend filling in our client worksheet. We have decades of combined experience and want to make sure we are on the same page in your decision. Either way, we would love to chat about what you have going on!


Additional noteworthy components to each of our pieces:

  • No weld seam that isn’t fully backpurged;
  • all flanges surfaced flat;
  • all fabrication, welding sequence, and approach done to minimize internal stresses; and
  • all port work standard and given our full attention.