NOTE: For Process West intake manifold only, if you have an OEM STi or Cosworth intake manifold, please use THIS part number.

In the hunt for more than 600 horsepower Subaru owners can be limited by their OEM throttle body. The OEM units just aren’t big enough to meet the demands of larger upgraded turbochargers. For years those who were seeking to upgrade this component were forced to use inferior aftermarket alternatives. These aftermarket throttle bodies were prone to issues like sticking, poor idle quality, and difficult installation. IAG is pleased to announce that these owners are no longer forced to compromise drivability for horsepower. With the introduction of our new adapter plates owners are able to upgrade their OEM throttle bodies with a larger quality unit.

The Bosch throttle body offers a 82mm bore which is over 36% larger over stock. Intended for race applications, this unit requires the use of Stand-alone Engine Management (Motec, Haltech etc). The package includes a wire harness adapter to make the installation much easier than other options previously available. Custom calibration using your stand-alone engine management is required.

The plate is machined from 6061 aluminum, and features an O-ring sealing surface. Each package includes a brand new Bosch 82mm Throttle Body, IAG adapter plate, and all the necessary hardware to complete the installation. The adapter plates are available in anodized black or natural silver finish.

Fits *2004-21 Subaru STI, 2006-07 WRX, and the 2004-08 Forester XT.

Fitment Notes:

• Intended for vehicles making 600+ HP with front mount intercoolers & Process West or Corsa Veloce Intake Manifolds.
• Stand-alone Engine Management is required – Consult with your Tuner before ordering.
• Custom piping / fabrication may be required for installation
• Not compatible with OEM style MAP sensors

Package Includes:

• (x1) Bosch 82mm Throttle Body (Silver Finish Only)
• (x1) IAG Aluminum Adapter Plate (Available in Black or Silver Finish)
• (x4) M6x45mm Low Profile Socket Head Cap Screws
• (x4) M6x20mm Low Profile Socket Head Cap Screws
• (x4) M6 Flat Washers
• (x4) Small O-rings
• (x2) Large Adapter Plate O-Rings
• (x1) Wire Harness for Bosch Throttle Body Assembly

Warranty:

• *No Returns on electronics including Bosch Throttle Body.