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MAP 4-1 Equal Length Headers - 04+ STI / 06-14 WRX

New equal length turbo manifold for your EJ20 or EJ25 series Subaru! Made from top quality 304 stainless this header will be the last one you will ever need to buy. Efficient and proven on power, and with a lifetime warranty... How can you go wrong?


  • 100% Made In The USA
  • 4-1 design for increased efficiency
  • Crafted from 304 USA-Made stainless steel
  • Utilizes a merge collector center cone to improve flow
  • 1/2 inch thick up-pipe flange to prevent warping
  • Flat sanded flanges to ensure a leak free design
  • Four 1.750 inch runners merge to a 2.250 up tube

What's in the box?

  • 1 Equal Length Header
  • Required Mounting Hardware


  • MAP Limited Lifetime Warranty

May require slight modifications to the stock oil cooler for 06-07 WRX and Forester XT models. Some models may require modification to the stock fan shroud.

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