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Performance Top-Mount Intercooler Kit, fits Subaru WRX STI 2008-2021

Model
MMTMIC-STI-08
As low as $725.95 Regular Price $903.73
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Key Features
Features
  • Direct fit for the 2008-2021 Subaru WRX STI
  • Provides 10 F temperature drop compared to stock intercooler
  • Proven 5 whp and 7 wtq bolt-on power increase for stock vehicle
  • 3.75-in thick core with 584 in3 of volume produces optimal heat transfer for vehicles from stock to 400 whp
  • 100-percent aluminum construction with durable cast end tanks
  • TIG-welded to a highly efficient bar-and-plate core
  • Easily installs in under 30 minutes
  • Does not require modification to the stock A/C line and functions with the stock intercooler Y-pipe
  • Includes new Y-pipe gaskets, BPV gasket, silicone PCV hose, and silicone throttle-body coupler
  • Available in durable powder-coated Stealth Black or Sleek Silver finish
  • Mishimoto Lifetime Warranty

Installation Difficulty: Medium

CARB EO#: D-759
Key Features
  • Direct fit for the 2008-2021 Subaru WRX STI
  • Provides 10 F temperature drop compared to stock intercooler
  • Proven 5 whp and 7 wtq bolt-on power increase for stock vehicle
  • 3.75-in thick core with 584 in3 of volume produces optimal heat transfer for vehicles from stock to 400 whp
  • 100-percent aluminum construction with durable cast end tanks
  • TIG-welded to a highly efficient bar-and-plate core
  • Easily installs in under 30 minutes
  • Does not require modification to the stock A/C line and functions with the stock intercooler Y-pipe
  • Includes new Y-pipe gaskets, BPV gasket, silicone PCV hose, and silicone throttle-body coupler
  • Available in durable powder-coated Stealth Black or Sleek Silver finish
  • Mishimoto Lifetime Warranty

Product Description

Looking for a way to reduce high intake temperatures on your stock or modified STI? The solution is the Mishimoto direct-fit top-mount intercooler engineered specifically for the 2008-2021 Subaru WRX STI. Mishimoto engineers spent months designing and testing this new STI TMIC to ensure optimum performance on both the street and track. This STI intercooler utilizes durable cast aluminum end tanks TIG-welded to a highly efficient, dense bar-and-plate core. The Mishimoto intercooler has a 3.75" thick core and a total volume of 584 in3. Thanks to this volume and a very dense offset fin pitch, we are able to optimize heat transfer and support vehicles from stock up to 400 whp.

This STI intercooler endured rigorous testing, showing a 10°F temperature drop as well as a +5 whp and +7 wtq bolt-on power increase for our stock test vehicle. Installation of this top-mount intercooler is simple, requires no modification to the stock A/C line, and can be completed in under 30 minutes. Included with this top-mount intercooler are new Y-pipe gaskets, a new BPV gasket, a silicone PCV hose, and a silicone throttle body coupler. These components negate the need to gather supplies for installation, and they ensure years of reliable service. This top-mount intercooler is available in a durable powder-coated finish of Stealth Black or Sleek Silver and like all of our WRX performance parts, it includes the Mishimoto Lifetime Warranty.
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TECH SPECS

More Information
Applications2008-2021 Subaru WRX STI
Engine CodesEJ257
EJ255
Chassis CodesGR
GV
Note
This kit is rated for 250-450 whp with maximum limits of approximately 500 whp, or 30 PSI of turbo boost. Exceeding that horsepower or pressure limit may require a larger front-mount intercooler.
Overall Length (in)24.5
Overall Height (in)11.5
Overall Width (in)4.25
Core TypeBar-and-Plate
Core Thickness (in)3.75
Core Length (in)21
Core Height (in)7.25

Downloads

Downloads
Engineering Report
pdf
(Size: 697.3 KB)
Performance Top-Mount Intercooler Kit, fits Subaru WRX STI 2008+
pdf
(Size: 697.3 KB)
Performance Top-Mount Intercooler Kit, fits Subaru WRX STI 2008+
pdf
(Size: 1.4 MB)
Engineering Report
Installation Guides
pdf
(Size: 769.8 KB)
Installation Guides

Purchase Includes

(1) Bar-and-Plate Intercooler
(1) Intercooler to Throttle Body Transition Coupler
(1) PCV Hose
(1) Bypass Valve Gasket
(2) Y-pipe to Intercooler Gaskets
(1) Black Nylon Hose Fitting, 3/4-in I.D.
(1) Black Nylon Tee Hose Fitting, 3/4-in I.D.

Note:

This kit is rated for 250-450 whp with maximum limits of approximately 500 whp, or 30 PSI of turbo boost. Exceeding that horsepower or pressure limit may require a larger front-mount intercooler.

ENGINEERING

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