Killer B

Killer B Motorsport Unholy FA20 UEL Header

2015-2021 Subaru WRX

Ships for free in the 48 states

SKU: FA20-UELWe price match!

Out of Stock

This is the Killer B Motorsport Unholy Unholy FA20 UEL Header. Killer B wanted to release a quality exhaust component during the spooky season, and now we have the unholiest of Killer B products. They say that this exhaust manifold is so unholy that a flock of crows will follow your Subaru around while driving. Although we cannot confirm the legend, some may find the performance scary. This is an unequal-length layout that will provide your exhaust with an unobstructed exit path for the exhaust gases to generate more flow, more power, and more spool. Additionally, this will produce that flagship Subaru rumble that will sound like bats flying out of heck which is unholy, or whatever euphemism you'd like to use. 
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Killer B Motorsport Unholy FA20 UEL Header


  • 321 stainless steel construction
  • Unequal layout
  • Improves the horsepower and the torque
  • Increases the spool as it combines a larger piping diameter with smoother bends
  • Provides an unobstructed exit path for the exhaust gases when compared to the OEM manifold
  • Much lighter than the OEM manifold
  • Produces that flagship Subaru rumble

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