Mishimoto Front-Mount Intercooler Kit: Subaru WRX/STI 2001-07 #28765

Designed for applications that demand the greatest airflow and cooling capabilities, the Mishimoto WRX/STI Front-Mount Intercooler Kit will provide your Subaru with the ability to make the most horsepower and torque possible. This front-mount 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 WRX/STI 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 is available with either a Sleek Silver or Stealth Black cooler and includes the Mishimoto Lifetime Warranty

• 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 700 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

Cooler Overall Size
44" x 9.00" x 5.5"

Cooler Core Size
28" x 8.25" x 3.5"

Crash Bar Specs
– Steel construction with black powdercoat
– Application-specific mounting holes
– 6.5 lbs

Hot-Side Intercooler Pipe Specs
– Made from polished mandrel-bent aluminum
– 2.25" I.D.
– Includes upper and lower intercooler pipes

Cold-Side Intercooler Pipe Specs
– Made from polished mandrel-bent aluminum
– 2.75" I.D.
– Includes upper and lower intercooler pipes

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

Note
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 vehicleÍs 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.

Cooler Inlet / Outlet
2.75" I.D. / 3.00" O.D.

Cooler Weight
25.5 lbs

Cooler Tank Wall Thickness
3.5mm

Cooler Construction
Bar-and-plate with cast end tanks

Also Fits
02–07 Subaru WRX
04–07 Subaru STI
05–06 Saab 9-2x Aero

Engine Codes
EJ205
EJ255
EJ257

Chassis Codes
GD
GG

Turbo to Hot-Side Hose Specs (for Stock Turbo)
– 1.875" I.D. / 2.20" O.D. – On turbo outlet
– 5mm hose thickness
– Withstands up to 400°F (204°C) temps
– Fits on turbos with 1.97" (50mm) maximum compressor outlet size

Turbo to Hot-Side Hose Specs (for Aftermarket Turbo)
–2.00" I.D. / 2.40" O.D.–On turbo outlet
– 5mm hose thickness
– Withstands up to 400°F (204°C) temps
– Fits on turbos with 2.25" (57mm) maximum compressor outlet size

Intercooler pipe to throttle-body coupler specs
– 3.25" Length
– 2.75" I.D.
– 3.00" O.D.
– 4mm thick

BPV Hose Specs
– Application-specific bend for this kit
– 1.25" I.D.
– 1.50" O.D.
– 4mm thick

PCV Hose specs
– 17.5" length
– 0.45" I.D.
– 0.75" O.D.
– 4mm thick

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 filter
Note: Filter re-oil is not included with the lifetime warranty.