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IAG Big Bore 76mm Throttle Body Adapter - OEM STI, Cosworth & AMS Intake Manifolds
Lease for as low as $/week
In the hunt for more 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 that is sold separately.
The Big Bore throttle body offers a 76mm bore which is nearly 25% larger over stock. Best of all, the installation is much easier than other options previously available. Simply drill out the rivets holding the motor to your OEM Subaru throttle body, remove the motor assembly, and install it to the throttle body using the supplied replacement rivets. No complicated disassembly, no springs, and the OEM connector is plug and play.
The IAG adapter plate is designed specifically to work with the OEM STI, Cosworth or AMS Intake Manifold. The plates are machined from 6061 aluminum, and feature an O-ring sealing surface. Each adapter plate includes 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. The 2004-2005 STI requires a riveted throttle body. Confirm that a riveted throttle body style is being used and consult with your tuner before ordering.
Fitment Notes:
- Intended for vehicles making 600+ HP with front mount intercoolers
- ECU calibration is required - Consult with your Tuner before ordering.
- Big Bore Throttle Body is not included with the kit.
- Installation requires a Subaru throttle body with rivets attaching the motor. Not compatible with clip style Subaru throttle body.
- Custom piping / fabrication may be required for installation
- Not compatible with OEM style MAP sensors
Adapter Kit Includes:
- (x1) IAG Aluminum Adapter Plate
- (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-rings
- (x7) Rivets
Returns may be accepted within 14 days of purchase pending Return Merchandise Authorization (RMA). No returns or cancellations on special order items. All returns will be charged a 20% restocking fee, no exceptions.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Item must be able to be resold as new.
Several types of goods are exempt from being returned. Hazardous materials, fluids, greases, chemicals, and clothing are not able to return.
Free shipping is available within the lower 48 states for most orders totaling $199 or more. A free shipping option will be available during checkout. This offer is for delivery address in the continental United States and excludes shipments going to Alaska, Hawaii, Military Boxes, and items that require freight shipping.
Processing Time
Patterson Performance stocks a large quantity of items at any given time. Some items may require drop shipping from one of our various distributors. In stock items will ship within 1-2 business days. If you're needing your product quickly, please contact us to verify product availability before placing your order. Orders requiring additional verification (security concerns, incorrect information, etc.) may need additional processing time. Estimated shipping dates are not guaranteed and are subject to change based on inventory levels and manufacturer lead times. Backordered items are shipped immediately once available.
Items ship daily, If the item you ordered is not in stock, a member of our team will contact you via email / phone.
Patterson Performance will only ship to an address that varies from your billing address if payment is made via Paypal or a financing partner.
Patterson Performance ships from multiple warehouses throughout the United States, and sometimes from manufacturers overseas.
You can simply contact us via email / telephone for a live inventory check
Find more information at www.P65Warnings.ca.gov.