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Killer B Motorsport 4-1 Holy Header 2-Bolt Coated - Subaru EJ Models (inc. 2002-2014 WRX / 2004+ STI)
Killer B Motorsport 4-1 Holy Header 2-Bolt Coated - Subaru EJ Models (inc. 2002-2014 WRX / 2004+ STI)
Killer B Motorsport 4-1 Holy Header 2-Bolt Coated - Subaru EJ Models (inc. 2002-2014 WRX / 2004+ STI)
Killer B Motorsport 4-1 Holy Header 2-Bolt Coated - Subaru EJ Models (inc. 2002-2014 WRX / 2004+ STI)
Killer B Motorsport 4-1 Holy Header 2-Bolt Coated - Subaru EJ Models (inc. 2002-2014 WRX / 2004+ STI)
Killer B Motorsport 4-1 Holy Header 2-Bolt Coated - Subaru EJ Models (inc. 2002-2014 WRX / 2004+ STI)

Killer B Motorsport 4-1 Holy Header 2-Bolt Coated

Subaru EJ Models (inc. 2002-2014 WRX / 2004+ STI)

$1,646.10

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Ships within 24 hours
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Features & Product Details

RallySport Direct proudly carries an excellent collection of quality upgrades brought to you by the metal artists at Killer B Motorsport. 

 

This example is the popular Killer B Motorsport SWAIN Coated 321 Stainless Steel 2-bolt Holy Header. This header and/or exhaust manifold is a great way to increase the exhaust flow due to the smooth bends in the design that will optimize the exhaust flow. This will help maximize the flow potential of your turbocharger which will also reduce the spool time. This is an equal-length design that will produce an aggressive exhaust note while improving the performance and response throughout the entire RPM band. 

 

 

 

DETAILS:

  • CAST COLLECTOR: The collector is made of thick-walled cast 347 stainless - This design removes several welds which removes flow disruption for less turbulence - This also allows the collector to be designed as a true high-velocity merge
  • SHORT EQUAL LENGTH PRIMARIES: Shorter length primaries make for an equal length header which means less header volume and quick spool up
  • SYMMETRICAL PRIMARY DESIGN: A similar tube length and bend geometry will keep the pulse velocities high and consistent when compared to equal length headers with different non-symmetrical primary tubing geometry
  • SMOOTH MANDREL BENDS: All the bends utilize a mandrel to promote non-restrictive flow, and Killer B uses the largest bends possible at every location
  • THICK WALLED 321 STAINLESS STEEL CONSTRUCTION: 321 is alloyed with titanium which not only costs more but it is ideal to handle the elements of extreme heat found in the turbocharger - With that being said, the turbocharger will create heat that will surpass the limits of 304 stainless steel, and 321 is more robust to promote longer life
  • SWAIN COATED: Heat coated to reduce the temperatures in the engine bay, protects against heat soak 
  • 2-BOLT UP PIPE CONNECTION: Allows for connection of 2-bolt flange style up-pipe connection
  • Weighs 17lbs
  • Works with OEM EJ25 oil pans along with the Killer B Motorsport Performance Aluminum Oil Pan
  • Made in the USA
  •  

     

    NOTE:

  • May not fit some Forester, Outback, and Legacy models with the OEM oil pan and cooler
  • Specifications

    Brand: Killer B Motorsport
    Includes Catalytic Converter: No
    Installation Hardware Included: No
    Manifold Design: Equal Length
    Piping Coating: Yes
    Piping Flex Joint: No
    Piping Material: 321 Stainless Steel
    Piping Taper: No
    Mfgr. Warranty: Lifetime
    Condition: New Product
    Return Policy:
    Standard

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    REVIEWS & CUSTOMER MEDIA

    1 Reviews
    5 out of 5 Stars
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    Killer B Motorsport 4-1 Holy Header 2-Bolt Swain Coat 3 months ago
    5out of 5stars
    CGH790
    Package arrived within 3 days of ordering. This is header is nothing short of a work of art that can be hung on the wall. Will be installing soon with Grimspeed thermal coated up pipe and fp blue turbo.
      
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    QUESTIONS & ANSWERS

    • Q: Thermal Wrap  B5 years ago

      With this header being ceramic coated would you still want to thermal wrap it or would it be ok not to?
    • Q: killerb headers  brian5 years ago

      will this fit with oem skid plate and will it melt the plastic? would a ALUMINUM plate be better?
      • 0 of 0 people found the following answer helpful

        A:  Yes it will fit with the OEM skid plate and if it does need trimming it is only slightly.

        Tyler A. @ RallySport Direct 5 years ago  
          
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    • Q: Killer b flange to up pipe size.  Erik Nelson6 years ago

      Just looking for information as to the size of the header exit piping so I can check if it matches up well with the rotated kit I'm looking at. Inside diameter would be better
      • 0 of 0 people found the following answer helpful

        A:  The secondary is 2" OD with a .06 wall thickness. We've seen them run on a T4 up to 1,150whp, but that was years ago. You can almost get to that point now on a T3 turbine, which is a perfect match for the tube we use.

        [email protected] @ Killer B Motorsport 6 years ago  
          
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    This Part Fits

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