Direct fit for the 2008–2015 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” thick core with 584 in3 of volume produces optimal heat transfer for vehicles from stock to 400 whp
100% 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
TECH SPECS
Mishimoto, the world leader in performance cooling products, is proud to present the Mishimoto Performance Top-Mount Intercooler for the 2008–2015 Subaru WRX STI. Fe...
Cooler Overall Size
24.5” x 11.5” x 4.25”
Cooler Core Size
21” x 7.25” x 3.75”
Cooler Construction
Bar-and-plate with cast end tanks
Tank Wall Thickness
3.5mm
Cooler Inlet / Outlet
Inlet: 2.5” x 1.313” (x2)
Outlet: 2.56” I.D. / 3.00” O.D.
Cooler Fin specs
Internal: 4.7mm fin height, 2.8mm fin pitch
External: 6.5mm fin height, 1.7mm fin pitch
Intercooler to throttle-body coupler hose specs
2.125” length
2.75” I.D.
3.00” O.D.
4mm thick
PCV hose specs
17.5” length
0.45” I.D.
0.75” O.D.
4mm thickCooler Weight
21 lb
Also Fits
08–15 Subaru WRX STI
Engine Codes
EJ257
EJ255
Chassis Codes
GR
GV
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, ½” I.D.
(1) Black Nylon Tee Hose Fitting, ½” 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.
PRODUCT ENGINEERING
INSTALLATION
Mishimoto, the world leader in performance cooling products, is proud to show you how to install the top-mount intercooler kit for the 2008–2015 Subaru WRX STI. Feat...
DESCRIPTIONLooking 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 2008–2015 Subaru WRX STI. Mishimoto engineers spent months designing and testing this new intercooler to ensure optimum performance on both the street and track. This 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 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 is simple, requires no modification to the stock A/C line, and can be completed in under 30 minutes. Included with this 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 intercooler is available in a durable powder-coated finish of Stealth Black or Sleek Silver, and it includes the Mishimoto Lifetime Warranty.
LIFETIME WARRANTY
Mishimoto Performance (MP), warrants all of its products under its 'no questions asked' limited lifetime warranty policy. Regardless of the defect in product, Mishimoto will replace the original product. Warranty claims must be accompanied by the original sales receipt from an authorized dealer.
A trained professional should install all MP products. Any issues with compatibility or installation should be addressed before attempting to install the product.
The purchaser's remedy for breach of this limited warranty, exclusive of all other remedies provided by law, is expressly limited to repair or replacement of any part or parts. All products returned for warranty consideration must be returned to MP with all transportation expenses prepaid.
MP shall not be responsible for damages to its products or injury to persons using the products in any manner that would constitute improper operation, including but not limited to: incorrect opening of radiator pressure caps, burst hoses, unintended application or usage not intended by MP, negligence, improper installation, or any other use that may cause damages or injury. MP shall not be responsible for injury or harm to persons or property when caused by persons or vehicles using its products.
Accident Protection
Mishimoto, under its no questions asked warranty policy, will provide a warranty for all claims including vehicles involved in accidents. Warranty claims must include pictures of the accident and an official police report, and must be within three months of the accident.
Fitment Disclaimer
All Mishimoto products are engineered to fit with OEM applications, as well as other Mishimoto products.
Mishimoto will not be held responsible for fitment issues caused by attempted installation of additional aftermarket parts. This includes, but is not limited to, performance parts and any other non-OEM replacement parts. Fitment with different brands cannot be guaranteed.
Furthermore, Mishimoto will not be held responsible for fitment issues caused by an accident. Many times, clearances needed for installation are very strict. If a vehicle has been involved in a front-end accident, available space for a product such as a thicker aluminum radiator may be compromised.
For all warranty claims, please contact us.
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