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Killer B Motorsport V2 Black Upper Turbo Coolant Reservoir w/ Barb Fittings 2002-2007 WRX / 2004-2021 STI

Original price $179.00 - Original price $179.00
Original price
$179.00 - $179.00
Current price $179.00

Killer B Upper Turbo Reservoir utilizes the OEM high point location, mounting points, Subaru filler cap, maintains proper cooling system function, and most importantly, provide clearance for the big rotated turbo setups. All while looking like it belonged there, not as an afterthought. A quick thread search will show LOTS of “I just changed my radiator and now my car overheats” threads that are a perfect example of what can happen if air is trapped in the cooling system. The turbocharged Subaru is a bit of an oddball in that the radiator filler neck is not the high point of the cooling system; the turbo charger sits higher than the radiator filler neck. So, to address this situation Subaru uses the ECFT. The ECFT allows the cooling system to be filled and air to escape similar to a traditional system. For guys running a rotated turbo setup the turbo inlet and/or inlet piping interferes with the ECFT. This means the tank either needs to be relocated or removed. While some have been successful in removing the ECFT, this is not the preferred method as its success is hit or miss at best. The other option is relocating the OEM tank to another location. Firewall, strut towers, and various other areas in the engine bay have been used via fabrication of brackets and other less glamorous methods. While this can work, the relocation requires longer lines that may themselves trap air if the routing is not well thought out, the final location may not be high enough to be as effective as the OEM location and it requires the additional use of fabrication tool and materials, which many of us do not have.

  • Fits All Metal WRX & STi Turbo Intake Manifolds
  • Full 3D CNC Machined Neck and Body
  • Hand TIG Welded Barb Connections and Bracket
  • 1/4” Thick CNC Laser Cut Bracket
  • Powder Coated Black"

Customer Reviews

Based on 5 reviews
Vic C.
Cleans up nicely

Tired of that bulky OEM turbo reservoir? Well this is the best mod you can get to replace that! I can access everything I need to underneath it without having to unbolt it and manipulate it around.


Thank you for taking the time to leave a 5 Star Review for the Killer B Motorsport V2 Black Upper Turbo Coolant Reservoir. It is a great way to help clean up the look of your engine bay and made accessing the components underneath easier for you. We appreciate your support and are happy to have provided a helpful and elegant solution for your WRX/STI. Thank you for choosing Killer B Motorsport from Subimods!


John R
Looking to upgrade

All the plastic in my engine bay is kinda tired and old so I chose this as a replacement. Works as intended and looks great too. Wish it came with a cap but I had just purchased new OEM ones so not too big a deal.


We are so glad to hear that you chose the Killer B Motorsports V2 Black Upper Turbo Coolant Reservoir as a replacement for your old and tired plastic. The Subimods Team strives to provide quality products that not only function well but also look great. We apologize for the cap not being included, but we aree happy to hear that you were able to find a suitable solution. We hope to continue to provide great products for your engine bay. We appreciate your 5 Star Review! Have a fantastic day!



Prolly hands down best product I have gotten install was smooth and love how small it is for my rotated set up


We appreciate your 5 Star Review and are thrilled to hear that you are enjoying the Killer B Motorsport V2 Black Upper Turbo Coolant Reservoir! Killer B Motorsports creates high quality and efficient products, and we are glad that the reservoir has met your expectations. Thank you for choosing Subimods! Happy driving!


Space saver!

Killer bee upper coolant tank is considerably smaller than oem tank. I bought this tank just to clean up engine bay. Installed this product a few days ago and everything has been good. Of course coming from killer bee the build quality is there. Does its job and looks pretty doing it!


Thank you for taking the time to leave a 5 Star Review and added pics of the Killer B Motorsport V2 Black Upper Turbo Coolant Reservoir with Barb Fittings! Killer B Motorsports products are absolutely amazing! This reservoir tank does exactly as you described, it saves space and looks incredible in your engine bay! Enjoy!


Adam Thompson
Great product

Once again. Fast shipping. This worked great with having to relocate, because of the process west manifold. Made a little bracket and tucked it next to the power steering res.


The Killer B Motorsport V2 Black Upper Turbo Coolant Reservoir with Barb Fittings is a fantastic option when relocating your upper tank! Thank you for your 5 Star Review and your added pics! Your installation and bracket look great!


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