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Killer B Equal Length 4-1 Header 02-14 WRX / 04-21 STI
Killer B Equal Length 4-1 Header 02-14 WRX / 04-21 STI


 
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Our Price: $1,549.20



Product Code: HH4-1


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Description
 
Killer B Equal Length 4-1 Header 02-14 WRX / 04-21 STI

  • Includes Uppipe
  • Fits OEM Oil Pans and Killer B Oil Pan
  • VBand Manifold - Uppipe Connection
  • Made in USA
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 will experience 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.

  • Contact us for availability
  • This manifold does not include gaskets

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