IAG Big Bore 76mm Throttle Body w/ Electronics & Adapter Package for Subaru STI IAG Big Bore 76mm Throttle Body w/ Electronics & Adapter Package for Subaru STI IAG Performance IMPROVE ENGINE AIRFLOW 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 OEM quality unit. The Big Bore throttle body offers a 76mm bore, which is nearly 25% larger than stock. AVAILABLE WITH BLACK OR SILVER INTAKE MANIFOLD ADAPTERS NOW EVEN EASIER TO INSTALL Best of all, the installation is now much easier than other options previously available. Simply remove the OEM Subaru throttle body, install the supplied adapter and new 76mm Throttle body to the intake manifold. No complicated disassembly, no springs, and the OEM connector is plug and play. (MAP sensor relocation may be required) CNC MACHINED ADAPTER PLATES The plates are machined from 6061 aluminum, and feature an O-ring sealing surface. Each package includes a brand new Big Bore 76mm 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.   MADE IN THE USA We're proud to say that our products are manufactured right here in our facility in Westminster, MD. IAG Performance was founded in 2007 as an innovator in Subaru performance products. We offer a wide variety of problem-solving aftermarket products. Our friendly, USA based, support staff is also here to help with any installation questions you might have. What's Inside: Fits 2004-21 Subaru STI, 2006-07 WRX, and the 2004-08 Forester XT. Package Includes: (x1) Big Bore 76mm Throttle Body (Silver Finish Only) (x1) IAG Aluminum Adapter Plate (Available in Black or Silver Finish) (x4) M6x50mm Low Profile Socket Head Cap Screws (x4) M6x20mm Low Profile Socket Head Cap Screws (x4) Small O-rings (x2) Large Adapter Plate O-Ring

IAG Big Bore 76mm Throttle Body w/ Electronics & Adapter Package for Subaru STI

$379.99
In Stock

IMPROVE ENGINE AIRFLOW

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 OEM quality unit. The Big Bore throttle body offers a 76mm bore, which is nearly 25% larger than stock.

IAG Big Bore Throttle Body
IAG SIlver Throttle Body Adapter Plate

AVAILABLE WITH BLACK OR SILVER INTAKE MANIFOLD ADAPTERS

IAG Black Throttle Body Adapter Plate

NOW EVEN EASIER TO INSTALL

Best of all, the installation is now much easier than other options previously available. Simply remove the OEM Subaru throttle body, install the supplied adapter and new 76mm Throttle body to the intake manifold. No complicated disassembly, no springs, and the OEM connector is plug and play. (MAP sensor relocation may be required)

IAG Throttle Body Adapter Plate Installed on Process West Intake Manifold
IAG Throttle Body Adapter Plate

CNC MACHINED ADAPTER PLATES

The plates are machined from 6061 aluminum, and feature an O-ring sealing surface. Each package includes a brand new Big Bore 76mm 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.  

MADE IN THE USA

We're proud to say that our products are manufactured right here in our facility in Westminster, MD. IAG Performance was founded in 2007 as an innovator in Subaru performance products. We offer a wide variety of problem-solving aftermarket products. Our friendly, USA based, support staff is also here to help with any installation questions you might have.

CNC Machining in the USA

What's Inside:


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

Package Includes:

  • (x1) Big Bore 76mm Throttle Body (Silver Finish Only)
  • (x1) IAG Aluminum Adapter Plate (Available in Black or Silver Finish)
  • (x4) M6x50mm Low Profile Socket Head Cap Screws
  • (x4) M6x20mm Low Profile Socket Head Cap Screws
  • (x4) Small O-rings
  • (x2) Large Adapter Plate O-Ring

IMPROVE ENGINE AIRFLOW

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 OEM quality unit. The Big Bore throttle body offers a 76mm bore, which is nearly 25% larger than stock.

IAG Big Bore Throttle Body
IAG SIlver Throttle Body Adapter Plate

AVAILABLE WITH BLACK OR SILVER INTAKE MANIFOLD ADAPTERS

IAG Black Throttle Body Adapter Plate

NOW EVEN EASIER TO INSTALL

Best of all, the installation is now much easier than other options previously available. Simply remove the OEM Subaru throttle body, install the supplied adapter and new 76mm Throttle body to the intake manifold. No complicated disassembly, no springs, and the OEM connector is plug and play. (MAP sensor relocation may be required)

IAG Throttle Body Adapter Plate Installed on Process West Intake Manifold
IAG Throttle Body Adapter Plate

CNC MACHINED ADAPTER PLATES

The plates are machined from 6061 aluminum, and feature an O-ring sealing surface. Each package includes a brand new Big Bore 76mm 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.  

MADE IN THE USA

We're proud to say that our products are manufactured right here in our facility in Westminster, MD. IAG Performance was founded in 2007 as an innovator in Subaru performance products. We offer a wide variety of problem-solving aftermarket products. Our friendly, USA based, support staff is also here to help with any installation questions you might have.

CNC Machining in the USA

What's Inside:


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

Package Includes:

  • (x1) Big Bore 76mm Throttle Body (Silver Finish Only)
  • (x1) IAG Aluminum Adapter Plate (Available in Black or Silver Finish)
  • (x4) M6x50mm Low Profile Socket Head Cap Screws
  • (x4) M6x20mm Low Profile Socket Head Cap Screws
  • (x4) Small O-rings
  • (x2) Large Adapter Plate O-Ring