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Killer B Motorsport High Flow Water Pump Housing V2 2002-2014 WRX / 2004-2014 STI

Original price $139.00 - Original price $139.00
Original price
$139.00 - $139.00
Current price $139.00

Killer B’s Water Pump Housing is a much more robust design. Designed using state of the art 3-D CAD software to assure maximum flow with minimum turbulence for the best performance possible!

  • 3D CAD designed
  • Made from Cast Aluminum
  • Smooth Taper Inlet for Turbulence Free Flow
  • Bead Assures Proper Hose Connection
  • Large Smooth Bend Transitions into the Housing with Maximum even Flow
  • Machined Flange for a Leak Free Install

Customer Reviews

Based on 2 reviews
Reviewer avatar
Michael Niehoff
Killer B never fails!

When I got it, it surprised me how much bigger it was then the OE one. it does work with OE size lower hose. if you haven't done or planned it i would recommend replacing the thermostat, and seal with OE products. the product bolts right up and is super easy! also remember to use blue coolant in your EJ!!
Difficulty 2/10
time 2/10
tools 1/10


We appreciate your 5 Star Review of the Killer B Motorsport High Flow Water Pump! As you said the installation process is easy and with all Killer B products it is a solid piece and work well with the OE size lower hose! Your recommendation to replace the thermostat and seal with OE products is also helpful advice for those considering this upgrade! It is clear that you have done your research and know your stuff when it comes to maintaining your car. Thank you for your review!


collin bleiler
Great product

Compared to stock side by side there is a huge difference currently doing a complete maintenance revive on my ej255 but after all done will give temp differences and a in depth review


We Appreciate your 5 Star Review! Killer B Motorsports has done extensive testing and truly knows how to build their products for the best performance! The High Flow Water Pump Housing is one of those products that maximizes flow!