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IAG Throttle Body Adapter Plate Bosch 82mm Throttle Body and Adapter for Process West Intake; Black

Fuel Injection Throttle Body


IAG Bosch 82mm Throttle Body & Adapter Package for Subaru STI Process West Intake Manifolds; Black Finish.

  • Allows mounting of larger 82mm Bosch throttle body for increased airflow
Pricing: $419.99

Free ground shipping on all order over $100.00 (some exclusions may apply)


Subaru: WRX STI 13 - 21 Sport-tech / Tsurugi Edition / Launch Edition / Sport / Base / Limited / Series.HyperBlue / Kanrai Edition / STI / Type RA / S209, Subaru: WRX 12 - 16 STI, Subaru: Forester 04 - 08 Sports 2.5 XT / XT / XT Premium / XT Limited / 2.5 XT, Subaru: Impreza 04 - 14 WRX STI Special Edition / WRX STI Limited / WRX / WRX Limited / WRX TR / WRX STI

  • Adapter Kit Includes: (x1) Bosch 82mm Throttle Body (Silver Finish Only), (x1) IAG Aluminum Adapter Plate (Black), (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
  • Custom piping / fabrication may be required for installation
  • Fits 2004-21 Subaru STI, 2006-07 WRX, and the 2004-08 Forester XT. Intended for vehicles making 600+ HP with front mount intercoolers & Process West or Corsa Veloce Intake Manifolds.
  • Not compatible with OEM style MAP sensors
  • Stand-alone Engine Management is required - Consult with your Tuner before ordering.

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.


  • IAG-AFD-2025BK
  • IAG-AFD-2025BK
  • 887753836403
  • IAG Performance
  • New


Shipping Information

  • Item Requires Shipping
  • 3.1 lbs.
  • W5.5000” x H5.5000” x L9.7500”
  • Free ground shipping on all order over $100.00 (some exclusions may apply)

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