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Mishimoto Mishimoto 08+ Subaru WRX/STi X-LINE (Thicker Core) Aluminum Radiator
Mishimoto Mishimoto 08+ Subaru WRX/STi X-LINE (Thicker Core) Aluminum Radiator
Mishimoto Mishimoto 08+ Subaru WRX/STi X-LINE (Thicker Core) Aluminum Radiator
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Mishimoto 08+ Subaru WRX/STi X-LINE (Thicker Core) Aluminum Radiator

Mishimoto
MISMMRAD-STI-08X
748354803488
Radiators
20+ Units In Stock - Ships Next Business Day
$ 451.00 $ 409.95
$ 409.95

SKU: MMRAD-STI-08X | UPC: 748354803488

Mishimoto 2008+ Subaru WRX/STI X-LINE (Thicker Core) Aluminum Radiator

Replace your stock radiator with the Mishimoto X-Line Aluminum Radiator MMRAD-STI-08X, featuring a 42mm thick 2-row core for 50 percent more volume than OEM. This direct-fit upgrade cools 2008-2021 Subaru WRX/STI models, plus Legacy GT, Outback XT, Forester XT, and Impreza variants with EJ25 turbo engines. It handles high-heat track sessions and daily driving by rejecting more heat from coolant.

Key Features

  • 42mm X-Line Core: Proprietary tube-and-fin layout with 24.8 x 16.5 x 1.65-inch dimensions expands surface area for faster heat dissipation and lower operating temps
  • All-Aluminum Build: TIG-welded assembly with billet end tanks resists corrosion and weighs 12.8 lbs, lighter than stock while adding durability
  • Direct-Fit Design: CNC-machined inlet/outlet fittings match OEM sizes and positions, bolts to factory mounts with no cutting or fabrication
  • Transmission Cooler Ready: Includes OEM-style ports for easy integration of stock or aftermarket coolers
  • Lifetime Warranty: Mishimoto stands behind every radiator with unlimited-mileage protection against defects

Product Notes

  • Verify fitment using the application guide for your exact engine code (TY757/TY758/TY856)
  • Pair with Mishimoto hoses and fans for full cooling system refresh
  • Oversized item ships via freight or UPS with adult signature required

Installation Notes

  • Professional installation recommended.
  • Drain coolant, remove OEM radiator, and transfer fans/sensors. full install takes 1-2 hours
  • Compatible with OEM brackets, A/C condenser, and shroud. reuse factory hardware

This Part Fits

Year Make Model Submodel
2009 Subaru Forester XT
2009-2010 Subaru Forester XT Limited
2011-2013 Subaru Forester XT Touring
2009-2010 Subaru Impreza 2.5 GT
2008-2014 Subaru Impreza WRX
2010-2014 Subaru Impreza WRX Limited
2009-2014 Subaru Impreza WRX Premium
2008-2014 Subaru Impreza WRX STI
2011-2014 Subaru Impreza WRX STI Limited
2010 Subaru Impreza WRX STI Special Edition
2005-2006 Subaru Legacy GT
2005,2007-2009 Subaru Legacy GT Limited
2006-2009 Subaru Legacy GT spec.B
2005-2006 Subaru Outback XT
2005-2009 Subaru Outback XT Limited
2015-2021 Subaru WRX STI Base
2015 Subaru WRX STI Launch Edition
2015-2021 Subaru WRX STI Limited
2020 Subaru WRX STI S209
2016 Subaru WRX STI Series.HyperBlue
2018 Subaru WRX STI Type RA

Why Choose Mishimoto?

  • Engineered and tested in the USA for Subaru turbo applications
  • Every part undergoes rigorous dyno and track validation
  • Full range of matching cooling components available

Frequently Asked Questions

  • Q: Will this fit my 2015 WRX STI?
    A: Yes, MMRAD-STI-08X is confirmed direct-fit for 2015-2021 WRX STI Base, Limited, Launch Edition, S209, Series.HyperBlue, and Type RA models
  • Q: What is the core material and thickness?
    A: Full 6061 aluminum construction with 42mm thick X-Line core, doubling heat rejection surface over stock 28mm unit
  • Q: What warranty applies?
    A: Lifetime warranty covers manufacturing defects for the original purchaser with proof of installation

Shipping & Handling

  • Method: UPS Ground or Freight for oversized items
  • Availability: In stock - ships same or next business day
  • Packaging: Securely boxed at 32 x 20 x 6 inches
  • Weight: 12.8 lbs product, 16 lbs shipping

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