aFe Silver Bullet Throttle Body Spacer Kit afe46-31008 for BMW 325i and 325xi E46 2.5L I6

Silver Bullet throttle body spacers create turbulence in the air flow at the point just prior entry into the engine increasing horsepower, torque and improving throttle response and fuel efficiency. Silver Bullet throttle body spacers are constructed out of durable T-6061 billet aluminum and using a unique serrated/helix entry to create turbulence at the manifold while eliminating the annoying whistle found in other helix only throttle spacers. Silver Bullet Throttle Body Spacer Kit BMW 325i (E46) 01-06 L6-2.5L (M54)

• Precision Machined From T-6061 Billet Aluminum
• Produces Increased HP/Torque/Throttle Response
• Increased Air Volume For Better Performance
• 2 Year Limited Warranty
• Special Helix Design
• No Annoying Whistle
• Fits w/aFe Intakes

Brief Description: The aFe Silver Bullet Throttle Body Spacer Kit is designed for select BMW 325i and 325xi E46 models equipped with the 2.5L inline-six M54 engine. By introducing controlled turbulence at the intake manifold entrance, this spacer helps improve air mixing, throttle response, horsepower, torque, and fuel efficiency. The kit uses a precision-machined T-6061 billet aluminum body with a specialized serrated and helix entry design.

The unique aFe Silver Bullet design promotes increased air volume while eliminating the excessive whistle often associated with helix-only throttle body spacers. It is compatible with aFe intake systems and includes a 2-year limited warranty. This product is EPA compliant and carries CARB Executive Order D-550-11 where applicable. Professional installation is recommended, and all supplied hardware and instructions should be reviewed before installation.

• Feature: Precision-machined T-6061 billet aluminum construction provides strength and long-term durability.
• Feature: Serrated and helix entry design creates controlled airflow turbulence for improved throttle response and engine performance.
• Feature: Increased intake air volume supports potential gains in horsepower, torque, and fuel efficiency.
• Feature: Special anti-whistle design helps reduce the annoying sound common with other helix-style spacers.

Key Product Specifications & Technical Data:

• Brand: aFe
• Part Number: afe46-31008
• Product Type: Silver Bullet throttle body spacer kit
• Material: T-6061 billet aluminum
• Engine Application: 2.5L inline-six M54
• Intake Compatibility: Compatible with aFe intake systems
• Emissions Status: EPA compliant; CARB Executive Order D-550-11
• Warranty: 2-year limited warranty

What's Included: One aFe Silver Bullet throttle body spacer kit and installation components supplied by the manufacturer.

Fitment: Fits 2001-2005 BMW 325i and 325xi E46 models with the 2.5L inline-six M54 engine. Verify the vehicle year, model, engine, and intake configuration before ordering.

Features:

• Precision-machined from durable T-6061 billet aluminum
• Serrated and helix entry design promotes controlled intake airflow turbulence
• Supports improved horsepower, torque, throttle response, and fuel efficiency
• Special design helps eliminate the annoying whistle found with helix-only spacers

Fitments:
2001 BMW 325Ci Base
2001 BMW 325i Base
2001 BMW 325xi Base
2002 BMW 325Ci Base
2002 BMW 325i Base
2002 BMW 325xi Base
2003 BMW 325Ci Base
2003 BMW 325i Base
2003 BMW 325xi Base
2004 BMW 325Ci Base
2004 BMW 325i Base
2004 BMW 325xi Base
2005 BMW 325Ci Base
2005 BMW 325i Base
2005 BMW 325xi Base
2006 BMW 325Ci Base

Air Freight Prohibited: false
Not Carb Approved: false
Carb Eo Number: D-550-11
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: Compliant
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1