aFe Silver Bullet Throttle Body Spacer Kit for 2015–2019 Subaru Outback and Legacy H6 3.6L – Part Number 46-30006

The Serrated/Helix combination design creates intake turbulence in the combustion chamber. This turbulence breaks up the fuel which creates a more complete combustion cycle increasing horsepower, torque and improving throttle response. The Serrated/Helix combination design also reduces intake whistle that occurs with Helix only designs. All Silver Bullet Throttle Body Spacers are constructed from 6061-T6 billet aluminum precision machined for light weight, high strength and perfect fit and finish. This Silver Bullet throttle body spacer uses all factory mounting locations providing stability and a hassle-free installation. Silver Bullet Throttle Body Spacer Kit Subaru Outback 15-19 H6-3.6L

• Silver Bullet throttle body spacers create turbulence in the air flow at the point just before entry to the engine – increasing performance, as well as improving throttle response.
• Unique Serrated/Helix Entry Design Creates Turbulence and Reduces Whistle Sound
• Increases Air Speed, Improving Performance and Throttle Response
• CNC-Machined from 6061-T6 Billet Aluminum

The aFe Silver Bullet Throttle Body Spacer Kit is designed for select 2015–2019 Subaru Outback and Legacy models equipped with the H6 3.6L engine. Its serrated and helix combination entry design creates controlled intake turbulence before the air enters the engine. This turbulence helps improve fuel atomization and promote a more complete combustion cycle, supporting sharper throttle response and improved engine performance.

The combination design also helps reduce the intake whistle commonly associated with helix-only throttle body spacers. CNC-machined from lightweight, high-strength 6061-T6 billet aluminum, the aFe Silver Bullet spacer is engineered for a precise fit and durable service. It uses factory mounting locations to provide secure installation without requiring modifications to the vehicle.

• Fitment: Designed for select 2015–2019 Subaru Outback and Legacy models with the H6 3.6L engine.
• Installation: Uses factory mounting locations for a straightforward installation.
• Material: CNC-machined from 6061-T6 billet aluminum.
• Airflow Design: Serrated and helix entry geometry creates intake turbulence and increases air speed.
• Performance Benefit: Helps improve throttle response, horsepower, torque, and overall combustion efficiency.
• Noise Reduction: Designed to reduce intake whistle compared with helix-only designs.
• Construction: Lightweight, rigid construction provides strength and dimensional stability.
• Part Number: aFe 46-30006.

What's Included: One aFe Silver Bullet throttle body spacer kit with the components required for installation. Always verify vehicle application and installation requirements before purchase. This product is not CARB approved and may not be legal for use on pollution-controlled vehicles in California or other regulated areas.

Features:

• Serrated and helix entry design creates intake turbulence while helping reduce intake whistle.
• Helps increase air speed for improved throttle response and performance.
• CNC-machined from durable 6061-T6 billet aluminum.
• Uses factory mounting locations for a secure, hassle-free installation.

Fitments:
2015 Subaru Legacy 3.6R Limited
2015 Subaru Outback 3.6R Limited
2016 Subaru Legacy 3.6R Limited
2016 Subaru Outback 3.6R Limited
2017 Subaru Legacy 3.6R Limited
2017 Subaru Outback 3.6R Limited
2017 Subaru Outback 3.6R Touring
2018 Subaru Legacy 3.6R Limited
2018 Subaru Outback 3.6R Limited
2018 Subaru Outback 3.6R Touring
2019 Subaru Legacy 3.6R Limited
2019 Subaru Outback 3.6R Limited
2019 Subaru Outback 3.6R Touring

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: false
Units Per Sku: 1