aFe Silver Bullet Throttle Body Spacer Kit afe46-31011 for 2007-2013 BMW 328i 3.0L N52

The serrated/helix design (US PAT 07055513) creates turbulence in the intake manifold and increases air pressure in the combustion chamber for better performance. This unique entry design also reduces intake whistle that commonly occurs with other helix-only styles. The addition of a Silver Bullet throttle body spacer lengthens the intake tract, which increases air intake speed, resulting in improved throttle response and overall performance. All Silver Bullet throttle body spacers are precision machined from 6061-T6 billet aluminum for lightweight, high strength, and a black anodized finish. This Silver Bullet throttle body spacer includes quality, machined screws, allowing for a secure, factory-like, non-damaging install to your factory intake manifold. This throttle body spacer will fit aFe Power intakes P/N: 51-81012-B, 54-81012-B, 51-81012-C, 54-81012-C, 54-13053D and 54-13053R. Silver Bullet Throttle Body Spacer Kit BMW 328i (E90/91/93) 07-13 L6-3.0L N52

• 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 and fuel efficiency.
• Dyno-Proven Gains up to +4 HP & +7 Lbs. x Ft. TQ w/ Throttle Body Spacer and aFe POWER P5R Air Filter (30-10131)
• Dyno-Proven Gains up to +3 HP & +5 Lbs. x Ft. TQ w/ Throttle Body Spacer and Factory Air Filter
• Unique Serrated/Helix Entry Design Creates Turbulence and Reduces Whistle Sounds
• Increases Air Speed, Improving Performance and Throttle Response
• Fits w/ aFe POWER Intakes P/N: 51/54-81012-B/C and 54-13053R/D
• CNC-Machined from Durable 6061-T6 Billet Aluminum
• Black Anodized Finish for a Stealthy Look

Improve intake airflow and throttle response with the aFe Silver Bullet Throttle Body Spacer Kit, part number afe46-31011. Designed for select 2007-2013 BMW 328i models equipped with the naturally aspirated 3.0L inline-six N52 engine, this spacer lengthens the intake tract and increases air velocity before the throttle body. The result is sharper throttle response and improved overall intake performance.

The patented serrated/helix entry design creates controlled turbulence in the intake manifold to increase air pressure in the combustion chamber. Unlike helix-only designs, the unique entry profile also helps reduce intake whistle. Dyno testing demonstrated gains of up to 4 horsepower and 7 lb.-ft. of torque when used with an aFe POWER P5R air filter, and up to 3 horsepower and 5 lb.-ft. of torque with the factory air filter.

Each aFe Silver Bullet spacer is CNC-machined from lightweight, high-strength 6061-T6 billet aluminum and finished with a durable black anodized coating. The kit includes precision-machined screws for a secure, factory-like installation without damaging the factory intake manifold. It is also compatible with select aFe POWER intake systems, including part numbers 51-81012-B, 54-81012-B, 51-81012-C, 54-81012-C, 54-13053D, and 54-13053R. Fitment includes the 2006 BMW 325xi and 2007-2013 BMW 328i and 328xi applications listed below. This product is not CARB approved.

• 2006 BMW 325xi
• 2007-2013 BMW 328i
• 2007 BMW 328xi
• Fits select E90, E91, E92, and E93 chassis with the 3.0L N52 engine

What's Included: One aFe Silver Bullet throttle body spacer and precision-machined installation screws.

Features:

• Serrated/Helix Entry Design: Creates intake turbulence to increase air pressure in the combustion chamber while helping reduce intake whistle.
• Improved Throttle Response: Lengthens the intake tract and increases air velocity for sharper response and enhanced overall performance.
• Dyno-Proven Performance: Delivers gains of up to 4 horsepower and 7 lb.-ft. of torque with an aFe POWER P5R air filter, or up to 3 horsepower and 5 lb.-ft. of torque with the factory air filter.
• 6061-T6 Billet Aluminum Construction: CNC-machined for lightweight strength and finished with a durable black anodized coating.
• Factory-Like Installation: Includes precision-machined screws designed for a secure, non-damaging installation.
• aFe POWER Intake Compatibility: Fits select aFe POWER intake systems using part numbers 51-81012-B, 54-81012-B, 51-81012-C, 54-81012-C, 54-13053D, and 54-13053R.

Fitments:
2006 BMW 325i Base
2006 BMW 325xi Base
2006 BMW 330i Base
2006 BMW 330xi Base
2007 BMW 328i Base
2007 BMW 328xi Base
2008 BMW 128i Base
2008 BMW 328i Base
2008 BMW 328xi Base
2009 BMW 128i Base
2009 BMW 328i Base
2009 BMW 328i xDrive Base
2010 BMW 128i Base
2010 BMW 328i Base
2010 BMW 328i xDrive Base
2011 BMW 128i Base
2011 BMW 328i Base
2011 BMW 328i xDrive Base
2012 BMW 128i Base
2012 BMW 328i Base
2012 BMW 328i xDrive Base
2013 BMW 128i Base
2013 BMW 328i Base
2013 BMW 328i xDrive Base

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