Description
- Fits the 2001–2007 Subaru WRX/STI
- Intercooler design optimized for maximum flow, and smooth cast end tanks allow the best possible airflow in and out of the intercooler
- Optimal core design for maximum cooling efficiency with minimal pressure drop
- Flow rated to approximately 600 whp/30 psi of turbo boost (See Tech Specs below)
- Includes all necessary hardware, brackets, and accessories
- Also fits right-hand drive models
- Available in Sleek Silver or Stealth Black
- Works with stock bypass valve or aftermarket blow-off valve
- Optional Subaru WRX/STI Performance Air Intake works perfectly with intercooler kit and provides a rich and aggressive intake tone
- Mishimoto Lifetime Warranty
Designed for applications that demand the greatest airflow and cooling capabilities, the Mishimoto WRX and STI Front-Mount Intercooler Kit will provide your Subaru with the ability to make the most horsepower and torque possible. This WRX and STI intercooler was designed with a large, 28 intercooler core that provides the maximum cooling capability without excessive pressure drops that will wear out any turbocharger over time. The intercooler features smooth cast end tanks that are CFD tested for maximum airflow with no sharp walls or bends from cut-and-weld end tanks that disrupt airflow. The intercooler provides the best airflow and heat exchange properties for those time attack laps, or a 10-second blast down the quarter mile.
The Mishimoto Subaru STI and WRX Front-Mount Intercooler also features four mandrel-bent aluminum pipes for optimum airflow. The hot-side pipes are 2.25 in diameter to keep airflow velocities high, giving your car instant response without excessive throttle lag that plagues many front-mount intercooler designs. The cold side of the system features 3 mandrel-bent aluminum tubing designed for maximum airflow and to match the diameter of your throttle body. The kit is compatible with both stock and aftermarket bypass or blow-off valves.
The kit contains everything needed for a worry-free installation, including an application-specific crash bar that both supports the intercooler and mounts to existing points on the vehicle. No cutting or drilling is required to install the crash bar and intercooler. The kit also includes all necessary mounting brackets, including a resistor block relocation bracket to move the resistor block out of the way of the intercooler piping. All mounting brackets will come with applicable hardware, zip ties, and thermal wrap. The kit also includes every coupler and clamp needed for a clean install. For larger-than-stock turbos, Mishimoto has included a larger turbo hot-side pipe that will fit turbochargers with an outlet of 2–2.13. As an added bonus, we’ve engineered the Mishimoto Subaru WRX/STI Performance Air Intake as an additional option to work perfectly with this intercooler kit and provide a rich and aggressive intake tone.
Mishimoto tested this intercooler on our 320 whp STI to find significant drops in AITs (air intake temperatures), and the intercooler has also been flow tested to over 600 whp! This kit, like all our STI and WRX front-mount intercooler kits, is available with either a Sleek Silver or Stealth Black cooler and includes the Mishimoto Lifetime Warranty Worried that paint reduces performance? Check out our Painted Intercooler Engineering Report to learn how we debunked that myth!
TECH SPECS
Installation Torque Specs27 in-lbs (3N*M) recommended for all t-bolt and constant tension t-bolt clamps. These clamps have an operating range of 18-35 in-lbs (2-4N*M). Do not exceed the maximum torque rating of 35 in-lbs (4N*M).
22 in-lbs (2.5N*M) recommended for all worm-gear clamps. These clamps have an operating range of 18-27 in-lbs 2-3N*M. Do not exceed the maximum torque rating of 27 in-lbs (3N*M).
Silicone Couplers(1) Turbo to Hot Pipe Coupler (for stock turbo)
(1) Turbo to Hot Pipe Coupler (for aftermarket turbo)
(1) 2.25″ Straight Coupler
(2) 2.75″ Straight Couplers
(1) 2.75″ x 3.25″ Long Straight Coupler
(1) 2.00″-2.75″ Transition Coupler
Purchase Includes(1) Bar-and-Plate Intercooler
(1) Steel Crash Bar w/ Mounting Hardware
(2) Hot-Side Intercooler Pipes
(2) Cold-Side Intercooler Pipes
(1) BPV Flange Adapter
(1) Resistor Block Relocation Bracket w/ Mounting Hardware
(2) Lower Intercooler Brackets w/ Mounting Hardware
(1) Aluminum Overflow Can w/ Mounting Hardware
(1) Turbo to Hot Pipe Coupler (for stock turbo)
(1) Turbo to Hot Pipe Coupler (for aftermarket turbo)
(1) 2.25″ Straight Coupler
(2) 2.75″ Straight Couplers
(1) 2.75″ x 3.25″ Long Straight Coupler
(1) 2.00″-2.75″ Transition Coupler
(1) BPV Recirculation Hose
(1) PCV hose
(1) 2.00″ T-bolt Clamp
(4) 2.5″ T-bolt Clamps
(7) 3″ T-bolt Clamps
(1) 1.5″ Worm Gear Clamp
(1) Bypass Valve Gasket
(1) Black Nylon Hose Fitting, 3/4″ I.D.
(1) Black Nylon Tee Hose Fitting, 3/4″ I.D.
(1) 12″ of Thermal Wrap
NoteReservoir tank may require modification for proper fitment
Mishimoto recommends that this intercooler kit, with or without the optional air intake, is not used with the stock ECU programming. It is highly recommended that the customer is able to retune the vehicle’s ECU after installing the intercooler kit. Power gains will vary depending on the size of the turbo, exhaust system, fuel system, and type of ECU tune that is applied to the vehicle. This kit is rated for approximately 700 whp, or 30 psi of turbo boost. Exceeding these horsepower or pressure limits may require a custom-sized front-mount intercooler.
Also Included With Optional Air Intake Kit
(1) Oiled Filter
(1) Aluminum Intake Pipe
(1) 2.75 Straight Coupler
(1) 3 Worm-Gear Clamp
(1) Black High-Temp Zip Ties
Optional Air Intake Specs
Pipe Diameter: 2.75
Pipe Material: Aluminum
Oiled Filter: 38 g of oil on the filter
Note: Filter re-oil is not included in the lifetime warranty.
Turbo to Hot-Side Hose Specs (for Stock Turbo)
1.875 I.D. / 2.20 O.D. – On turbo outlet
5 hose thickness
Withstands up to 400°F (204°C) temps
Fits on turbos with 1.97 (50) maximum compressor outlet size
Turbo To Hot-Side Hose Specs (for Aftermarket Turbo)
2.00 I.D. / 2.40 O.D. On turbo outlet
5 hose thickness
Withstands up to 400°F (204°C) temps
Fits on turbos with 2.25 (57) maximum compressor outlet size
This intercooler kit cannot retain the use of your fog lights if equipped.
Pipe DiameterHot-Side: 2.25″
Cold-Side: 2.75″
Constant Tension T-Bolt Clamps Specs(1) 2.00″ T-bolt Clamp
(4) 2.5″ T-bolt Clamps
(7) 3″ T-bolt Clamps
Core Thickness3.5″
Cold-Side Intercooler Pipe Specs– Made from polished mandrel-bent aluminum
– 2.75″ I.D.
– Includes upper and lower intercooler pipes
Hot-Side Intercooler Pipe Specs– Made from polished mandrel-bent aluminum
– 2.25″ I.D.
– Includes upper and lower intercooler pipes
PCV Hose Specs– 17.5″ length
– 0.45″ I.D.
– 0.75″ O.D.
– 4mm thick
Intercooler/Throttle Body Coupler Specs– 3.25″ Length
– 2.75″ I.D.
– 3.00″ O.D.
– 4mm thick
WRX BPV Hose Specs– Application-specific bend for this kit
– 1.25″ I.D.
– 1.50″ O.D.
– 4mm thick
Engine CodesEJ205
EJ255
EJ257
Chassis CodesGD
GG
Fits2002-2007 Subaru WRX
2004-2007 Subaru STI
2005-2006 Saab 9-2x Aero
Weight25.5 lbs
CoatingPowder Coated
Tank Wall Thickness3.5mm
Max Rec. PSI30 psi
Outlet3″
Core Length28″
Core Height8.25″
Core Width3.5″
Inlet2.75″
Core Size28″ x 8.25″ x 3.5″
Overall Width5.5″
Overall Height9″
Overall Length44″
ConstructionBar-and-Plate
Max Rec HP600 whp
MakeSubaru
