What is the main benefit of a larger throttle body?

A larger throttle body, like this 70mm unit from BLOX Racing, allows more air to enter the engine. This can result in improved throttle response and potentially a slight increase in horsepower, especially when paired with other engine modifications.

Is this throttle body compatible with all 2013-2020 Subaru BRZ models?

Yes, this throttle body is designed to fit all Subaru BRZ models from 2013 through 2020. It is also compatible with the Scion FR-S (2013-2016) and Toyota 86 (2017-2020).

BLOX Racing 2013+ Subaru BRZ / Toyota 86 / Scion FR-S 70mm Billet Throttle Body - Black

Specifications

Brand: BLOX Racing
Part #: BXIM-50203-BK
UPC: BXIM-50203-BK

BLOX Racing 2013+ Subaru BRZ / Toyota 86 / Scion FR-S 70mm Billet Throttle Body - Black

Name: BLOX Racing 2013+ Subaru BRZ / Toyota 86 / Scion FR-S 70mm Billet Throttle Body - Black
Brand: BLOX Racing
Price: 400.00 USD
Availability: InStock

$400.00

On Backorder — Expected to ship by Jun 7, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2013-2020 Subaru BRZ. BLOX Racing 70mm Billet Throttle Body in black improves airflow for better engine response.

Key Features

Fits 2013-2020 Subaru BRZ, 2013-2016 Scion FR-S, and 2017-2020 Toyota 86.
BLOX Racing is known for well-built engine and suspension components.
Features a larger 70mm bore to improve airflow into the engine.
Machined from solid billet aluminum for strength and durability.
Black finish for an updated engine bay appearance.
Direct replacement for the factory throttle body.

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Fits these vehicles

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

Product Details

BLOX Racing is known for making well-built engine and suspension components for performance applications. This 70mm billet throttle body is designed for the 2013-2020 Subaru BRZ, 2013-2016 Scion FR-S, and 2017-2020 Toyota 86. It's a direct replacement for your stock throttle body, but with a larger opening to let more air into your engine. This can lead to improved throttle response and a bit more power, especially if you've made other modifications to your engine's intake or exhaust.

This throttle body is machined from solid billet aluminum, which makes it strong and durable. The larger 70mm bore compared to the stock unit is key here, allowing for a greater volume of air to pass through. It comes in a black finish to give your engine bay a clean, updated look. Keep in mind that this part is not CARB approved and cannot be shipped to California.