How does the Serrated/Helix design improve performance?

The Serrated/Helix design creates air turbulence within the intake manifold. This turbulence increases air pressure in the combustion chamber, which results in increased horsepower, torque, and improved throttle response.

What material is the aFe 46-30003 spacer made from?

This throttle body spacer is precision machined from 6061-T6 billet aluminum. This material is chosen for its lightweight properties, high strength, and ability to hold a precise finish.

Does this throttle body spacer come with a gasket?

Yes, the aFe Silver Bullet throttle body spacer uses all factory mounting locations and includes a gasket. This ensures a proper seal and a hassle-free installation onto your vehicle.

aFe 15-19 Subaru Outback H4 2.5L Silver Bullet Throttle Body Spacer

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aFe

Specifications

Brand: aFe
Part #: 46-30003
UPC: 802959468326

aFe

aFe 15-19 Subaru Outback H4 2.5L Silver Bullet Throttle Body Spacer

Name: aFe 15-19 Subaru Outback H4 2.5L Silver Bullet Throttle Body Spacer
Brand: aFe
Price: 142.34 USD
Availability: InStock

$142.34

On Backorder

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

This aFe Silver Bullet throttle body spacer uses a Serrated/Helix design to create air turbulence, improving horsepower and throttle response on your 15-19 Subaru Outback 2.5L.

Key Features

Serrated/Helix design — Creates air turbulence to increase horsepower, torque, and throttle response.
6061-T6 billet aluminum construction — Provides lightweight strength and a solid fit.
Black anodized finish — Offers a durable and long-lasting appearance.
Reduces intake whistle — Quieter operation compared to helix-only designs.
Uses factory mounting locations — Ensures a direct fit and hassle-free installation.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits this vehicle

Subaru Outback 2015-2019

Product Details

The Serrated/Helix design creates air turbulence in the intake manifold. This turbulence increases the air pressure in the combustion chamber resulting in increased horsepower, torque, and improved throttle response. The Serrated/Helix combination design also reduces intake whistle that occurs with other helix only designs. All Silver Bullet Throttle Body Spacers are precision machined from 6061-T6 billet aluminum for lightweight, high strength, and perfect fit and finish. It is black anodized for a durable long-lasting finish. This premium wrapped coupling is constructed of high temperature silicone which meets or exceeds SAEJ20 Standards. This Silver Bullet throttle body spacer uses all factory mounting locations and a gasket ensuring a proper seal and a hassle-free installation.