This listing is for digital cut files to make your own NA or NB Miata 1.8L BP8 header or turbo manifold exhaust flange.

The DXF file is closely based off of the Racing Beat exhaust manifold design. 

You cut the flange from your desired material thickness, 3/8" - 1/2" (10mm-12mm) material is recommended.

Included Sizes:

• Standard Oblong Port
• 1.5" (38mm) Diameter Primary 
• 1.625" (41mm) Diameter Primary 
• 1.75" (44.5mm) Diameter Primary 
  
  

The round ports are ideal for mating up to tubing or elbows; you can port match the back side to the exhaust port in the head if desired.

Designed to be CNC plasma, laser or waterjet cut from steel or stainless steel.