aFe Throttle Body

2013–2016 Scion FR-S / 2013–2020 Subaru BRZ / 2017–2020 Toyota 86 2.0L H4

46-39106

Overview:

The aFe POWER 70mm Throttle Body and adapter kit is a precision-engineered upgrade designed to improve airflow over the factory 65mm throttle body in your Scion FR-S, Subaru BRZ, or Toyota 86. By increasing the throttle bore diameter, this throttle body enhances horsepower and throttle response, delivering a more engaging driving experience. It is ideal for enthusiasts looking to maximize performance gains, especially when combined with other modifications such as aFe cold air intakes.

Built for daily drivers and performance enthusiasts alike, this throttle body upgrade offers reliable, bolt-on power improvements without the need for tuning, making it a straightforward enhancement to your vehicle’s intake system.

Key Features:

This throttle body kit combines advanced design and quality materials to optimize engine performance and drivability.

• 70mm bore diameter improves airflow compared to the stock 65mm throttle body
• Billet aluminum adapter constructed from durable 6061-T6 for lightweight strength and precise fitment
• Serrated and swirl design creates intake turbulence to promote better fuel atomization and more complete combustion
• Enhances horsepower, torque, and throttle response for a more responsive driving feel
• Direct bolt-on installation using all factory mounting locations for stability and ease of fitment
• Plug-and-play electronics require no tuning or modifications to factory wiring
• Recommended for use with an aFe cold air intake to maximize performance gains
• Includes all necessary hardware and gaskets for a hassle-free installation

Construction & Design:

The throttle body adapter is precision machined from 6061-T6 billet aluminum, ensuring a lightweight yet robust component that withstands the demands of performance driving. The combination of serrated and swirl features inside the throttle body promotes intake air turbulence, which breaks up fuel droplets for a more efficient combustion cycle. This design not only improves power output but also enhances throttle response and engine efficiency.

Every detail is engineered for a perfect fit and finish, maintaining factory mounting points to preserve vehicle stability and ease of installation.

Installation & Fitment:

This aFe POWER throttle body kit is a direct bolt-on upgrade for the following vehicles equipped with the 2.0L H4 engine:

• 2013–2016 Scion FR-S
• 2013–2020 Subaru BRZ
• 2017–2020 Toyota 86

No cutting, drilling, or special tuning is required, making installation straightforward and accessible for enthusiasts with basic mechanical skills. The kit uses all factory mounting locations and includes plug-and-play electronics to ensure compatibility and reliability.

What's Included:

• 70mm billet aluminum throttle body adapter
• All necessary mounting hardware and gaskets
• Plug-and-play electronic components for seamless integration

Ideal For:

This throttle body upgrade is perfect for drivers who want to improve throttle response and increase horsepower without complex modifications. It is especially beneficial when paired with other performance upgrades such as cold air intakes and exhaust systems, making it a great choice for street performance enthusiasts and weekend racers seeking enhanced engine efficiency and responsiveness.