aFe POWER 46-39106 70mm Throttle Body and Adapter Kit for 2013-2020 Subaru BRZ / Toyota 86 / Scion FR-S

Fits 2013-2020 Subaru BRZ, 2017-2020 Toyota 86, and 2013-2016 Scion FR-S.

This aFe POWER throttle body kit is engineered to increase engine airflow by replacing the restrictive factory 65mm unit with a larger 70mm bore. This increase in diameter allows for higher air volume to reach the combustion chamber, improving throttle response and power delivery, particularly on vehicles with existing intake or exhaust modifications. The kit includes a precision-machined 6061-T6 billet aluminum adapter featuring a unique Serrated/Swirl design. This internal geometry creates intake turbulence that improves fuel atomization for a more efficient combustion cycle.

Designed for a straightforward installation, the kit utilizes all factory mounting locations and features plug-and-play electronics that require no wire splicing or ECU tuning. The billet adapter provides a high-strength, lightweight connection between the throttle body and intake manifold for a reliable seal under all operating conditions.

• 70mm bore diameter (upgraded from stock 65mm)
• Precision-machined 6061-T6 billet aluminum adapter
• Serrated/Swirl design for improved intake turbulence and fuel atomization
• Plug-and-play electronics for a hassle-free install
• Direct bolt-on fitment using factory mounting points
• Includes all necessary gaskets and hardware
• Manufacturer Part Number: 46-39106