aFe

aFe Silver Bullet Throttle Body Spacer (BMW F3X 320i/328i/428i)

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$139.00
$257.46
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SKU: 114169
MPN: 46-31009

Product Details

Description

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.

Serrated/Helix Design:
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.

Longer Intake Tract:
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.

6061-T6 Billet Aluminum Construction:
All Silver Bullet throttle body spacers are precision machined from 6061-T6 billet aluminum for lightweight, high strength, and a beautiful finish.

Custom Hardware:
This Silver Bullet throttle body spacer includes custom-made screws, designed specifically for your BMW. Created and machined in-house, our screws feature precisely positioned threads, allowing for a secure, factory-like, non-damaging connection to your plastic intake manifold.

Emissions Disclaimer:
Some or all of the applications listed are 50-state exempt, please see CARB EO# D-550-11/D-550-17 for details.

Product Features

  • Dyno-Proven Gains up to +6 HP & +10 Lbs. x Ft. TQ
  • CNC-Machined from Durable 6061-T6 Billet Aluminum
  • Unique Serrated/Helix Entry Design Creates Turbulence and Reduces Whistle Sound
  • Increases Air Speed, Improving Performance and Throttle Response

warranty

Warranty Varies By Product Type

AFE Power Warranty Information

Fitment Guide

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Fitment Guide
Start Year End Year Make Model Submodel Cyl Lit Fuel FuelDel ASP EngDesg Notes
2012 2016 BMW 3 Series 328i Sedan
328i xDrive Sedan
L4 2.0 GAS FI T N20
N26
 
2013 2018 BMW 3 Series 320i Sedan
320i xDrive Sedan
L4 2.0 GAS FI T N20  
2014 2016 BMW 3 Series 328i xDrive Wagon L4 2.0 GAS FI T N20
N26
 
2014 2016 BMW 3 Series 328i GT xDrive L4 2.0 GAS FI T N20
N26
 
2014 2016 BMW 4 Series 428i Coupe
428i xDrive Coupe
L4 2.0 GAS FI T N20
N26
 
2014 2016 BMW 4 Series 428i Convertible
428i xDrive Convertible
L4 2.0 GAS FI T N20
N26
 
2015 2016 BMW 4 Series 428i Gran Coupe
428i xDrive Gran Coupe
L4 2.0 GAS FI T N20
N26
 

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