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Killer B Motorsport 4-1 Holy Header 2-Bolt Coated
Subaru EJ Models (inc. 2002-2014 WRX / 2004+ STI)
Product Resources
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:
NOTE:
Specifications
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QUESTIONS & ANSWERS
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Q: Fitment Zach2 years ago
Will these headers fit with th 04wrx ej20 oil pan?
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A: We confirm fitment for the 04 WRX
Johnny M. @ RallySport Direct 2 years agoWas this answer helpful?
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Q: Up pipe compatibility wenzq622462384 years ago
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A: Yes, Cobb's up pipe would bolt right up to this!
Brady R @ RallySport Direct 3 years agoWas this answer helpful?
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Q: Thermal Wrap B4 years ago
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A: It should be fine to leave it unwrapped.
Luis L. @ RallySport Direct 4 years agoWas this answer helpful?
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Q: killerb headers brian5 years ago
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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 agoWas this answer helpful?
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Q: Killer b flange to up pipe size. Erik Nelson5 years ago
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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 5 years agoWas this answer helpful?
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