Torque Solution TS-SU-870P-BK Throttle Body Adapter

The Torque Solution TS-SU-870P-BK is a precision-engineered big bore throttle body adapter designed for Subaru EJ engines equipped with big bore intake manifolds. This adapter allows you to upgrade to a 76mm Toyota throttle body, delivering a 25% larger bore than the OEM setup for dramatically improved airflow and throttle response on high-performance builds.

Construction and Design:

• CNC-machined 6061 billet aluminum with black anodized finish
• O-ring gaskets included for a secure, leak-free seal
• Durable corrosion-resistant construction for long-term reliability
• Includes all necessary bolts and rivets for mounting and motor transfer

Performance Benefits:

• Enhances airflow by 25% over the stock throttle body
• Ideal for builds targeting 600+ horsepower
• Improved throttle response and power delivery throughout the RPM range
• Essential upgrade for vehicles with upgraded turbochargers and intercoolers

Compatibility:

• Designed for Subaru STI, WRX, and Forester XT models with EJ engines
• Works with Subaru STI OEM, Torque Solution, Cosworth, AMS, and Process West big bore intake manifolds
• 76mm throttle body not included - Toyota 76mm throttle body recommended
• OEM throttle body motor from compatible Subaru models is reused

Installation Notes:

• OEM throttle body motor from 2006-2021 STI, 2006-2007 WRX, or 2004-2008 Forester XT must be transferred
• Aftermarket MAP sensor required, relocated to the intake manifold or vacuum block
• ECU tuning is necessary to accommodate the larger throttle body and MAP sensor
• Front-mount intercooler piping modification may be required

This adapter is a proven solution for serious Subaru enthusiasts looking to eliminate throttle body restrictions on high-horsepower builds. The black anodized finish provides both durability and a sleek appearance under the hood.