Killer B Motorsport 4-1 Performance Holy Header 2-Bolt Subaru WRX 2002-2014 | WRX STI 2004-2019 | All EJ Series

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Killer B Motorsport 4-1 Performance Holy Header 2-Bolt Subaru WRX 2002-2014 | WRX STI 2004-2019 | All EJ Series

$1,389.48 - $1,729.48
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SKU:
HH-2BOLT

The Killer B Motorsport Holy Header was developed using state of the art CAD software & simulations to determine optimal design to increase power as much as possible throughout the rev range. Short as possible primaries with a single secondary significantly decrease header volume allowing exhaust gas pressure to build quickly. Symmetrical 4-1 design maintains high and consistent exhaust velocity as RPMs rise. You can expect faster spool up time compared to long primary/double secondary designs. A difference you will immediately notice in throttle/boost response and the ability to hold more power higher into the revs.

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