aFe Silver Bullet Throttle Body Spacer Kit for 2021-2025 Subaru Crosstrek 2.5L H4, Part Number 46-30005

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. Complete with an orange anodized finish, the Silver Bullet Throttle Body Spacer will stand out as a per engine bay. 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 Crosstrek 21-26 H4-2.5L

• 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

Improve intake airflow characteristics in your Subaru Crosstrek with the aFe Silver Bullet Throttle Body Spacer Kit, part number 46-30005. Designed for 2.5L H4 applications, this spacer uses a serrated and helix combination entry design to create controlled turbulence before air enters the engine. The resulting air movement helps break up the fuel mixture for more complete combustion, supporting improved horsepower, torque, and throttle response.

Unlike helix-only designs, the serrated/helix combination is engineered to reduce intake whistle while maintaining its airflow-enhancing function. The spacer is CNC-machined from 6061-T6 billet aluminum for strength, durability, and precise fitment. Its orange anodized finish adds a distinctive appearance under the hood, while the use of factory mounting locations supports a stable, straightforward installation without extensive modifications.

• Product Type: Silver Bullet throttle body spacer kit
• Brand: aFe
• Part Number: 46-30005
• Material: CNC-machined 6061-T6 billet aluminum
• Design: Serrated/helix combination entry
• Finish: Orange anodized coating
• Installation: Uses factory mounting locations
• Application: Subaru Crosstrek with 2.5L H4 engine

What's Included: One aFe Silver Bullet throttle body spacer kit. This product is intended for applicable Subaru Crosstrek vehicles and is not CARB approved. Verify local emissions requirements and vehicle compatibility before installation. Fitment includes select 2021, 2022, 2023, 2024, and 2025 Subaru Crosstrek models equipped with the 2.5L H4 engine.

Features:

• Serrated/helix entry design creates intake turbulence to help improve air and fuel mixing.
• Supports increased airflow speed, horsepower, torque, and throttle response.
• Combination design helps reduce intake whistle compared with helix-only spacer designs.
• CNC-machined 6061-T6 billet aluminum construction provides strength, light weight, and precise fitment.

Fitments:
2021 Subaru Crosstrek Limited
2021 Subaru Crosstrek Sport
2022 Subaru Crosstrek Limited
2022 Subaru Crosstrek Sport
2023 Subaru Crosstrek Limited
2023 Subaru Crosstrek Sport
2024 Subaru Crosstrek Limited
2024 Subaru Crosstrek Sport
2024 Subaru Crosstrek Wilderness
2025 Subaru Crosstrek Limited
2025 Subaru Crosstrek Premium
2025 Subaru Crosstrek Sport
2025 Subaru Crosstrek Wilderness
2026 Subaru Crosstrek Base
2026 Subaru Crosstrek Limited
2026 Subaru Crosstrek Premium
2026 Subaru Crosstrek Sport
2026 Subaru Crosstrek Wilderness

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: t
Units Per Sku: 1