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Killer B Equal Length 4-1 Performance Holy Header 2-Bolt- Fits Subaru WRX 2002-2014 - STI 2004-2019 - More
SKU: KLRB-HH-2BOLT
No reviews
$1,412.99
Title
The Killer B Motorsport Holy Header was developed using state of the art CAD software & simulations to determine the optimal design to increase power as much as possible throughout the rev range. Primaries were made as short as possible along with a single secondary which significantly decrease header volume allowing exhaust gas pressure to build quickly.
The symmetrical 4-1 design maintains high and consistent exhaust velocity as RPMs rise. You can expect significantly faster spool up time compared to long primary/double secondary designs. You will immediately notice an improvement in throttle/boost response and the ability to hold more power higher into the revs.
Features:
Works with any 2-bolt up-pipe, including rotated setup
