Merge Collectors

These ready-to-weld parts cut hours or days off your exhaust manifold build time, and gives you a much better exhaust manifold!

These are the best CNC merge collectors available on the market. CNC machined from a solid billet for maximum durability and exact dimensions.

All our collectors are made from 304 stainless steel unless otherwise specified.


Merge Collectors


  • Spool valves

    Durable billet collectors with integrated spool valve functionality. Allows your twin scroll turbo to build boost earlier, and have lower back pressure at max power!
    Typically 500-1000rpm wider boost operating range based on current dyno and track test data.

  • 1 inlet
  • 2 inlets
  • 3 inlets
  • 4 inlets
  • 5 inlets
  • 6 inlets
  • Elbows

    Billet elbows for extreme durability and excellent flow

  • Head flanges

    Billet head flanges with smooth 3D-transitions for creating the perfect manifold

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