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Kthnxbye Racing

CSF Race Spec 2 Row Aluminum Radiator 2008-2021 WRX / 2008-2021 STI / 2013-2017 Crosstrek / 2005-2009 Legacy / 2009-2013 Forester

CSF Race Spec 2 Row Aluminum Radiator 2008-2021 WRX / 2008-2021 STI / 2013-2017 Crosstrek / 2005-2009 Legacy / 2009-2013 Forester

Regular price $379.00
Regular price Sale price $379.00
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This radiator will not be a direct fit for automatic vehicles, and is designed specifically for use with MT vehicles. 

CSF manufactures the most advanced and efficient radiator cores in the industry by using innovative tube and fin technologies with industry leading testing methods to maximize airflow and heat dissipation. These techniques allow CSF to stay ahead of the pack when it comes to radiator technology! “B-Tube” technology – Unlike a regular oval shape “O” type radiator tube, CSF uses a specially engineered tube in a shape of a “B”. These “B-tubes” are carefully formed and then brazed over the seam to seal. CSF is able to use thinner and lighter aluminum material (better cooling efficiency) because this design is actually stronger than normal “O” shape tubes that are welded. The design (inlet in the middle of tube that is seam brazed) increases the heat transfer surface area of the tubes by approximately 15% over regular tubes. You get the efficiency of 2 smaller tubes vs. 1 large tube within the same space criteria. With “B-tubes” you are able to get “dual liquid laminar flow.” High Efficiency Multi Louvered Fin – CSF uses ultra efficient multi louvered fins that are carefully and precisely aligned to maximize airflow through each radiator core. Fin specifications are carefully measured and calculated for each application, and tested for maximum heat rejection efficiency in our wind-tunnel lab. 


  • 2-row race-spec core has three times the cooling capacity vs. the 1-row OEM plastic/aluminum unit.
  •  6.5mm Tall Fins with a Multi-Louvered Design for Maximum Surface Area Contact 100% All-Aluminum TIG-Welded Construction
  • CNC Machined Mounting Brackets
  • Innovative “Multi-Fit” Combo Pipe and Plug Design, Included
  • True “Drop-in Fit” Requires No Modifications to Install
  • Individually Leak and Pressure Tested
  • 1 Hour “Mirror Finish” Hand Polish
  • For Manual Transmission Only
  • 42mm thick core
  • 2 Year Limited Warranty

Fitment Details:

  • 2008+ Subaru Impreza STI (Manual Transmission)
  • 2008-2014 Subaru Impreza WRX (Manual Transmission)
  • 2012-2016 Subaru Impreza (Manual Transmission)
  • 2005-2009 Subaru Legacy (Manual Transmission)
  • 2005-2010 Subaru Outback (Manual Transmission)
  • 2013-2017 Subaru Crosstrek (Manual Transmission)
  • 2013-2015 Subaru XV Crosstrek (Manual Transmission)
  • 2009-2013 Subaru Forester (Manual Transmission)
  • 2015+ Subaru WRX (Manual Transmission)*
  • *Must Cap Off Turbo Return Pipe on Top Right-Hand Side End Tank
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