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Silver Bullet Throttle Body Spacer

BMW 320i/328i (F30/31/34) 12-16
220i/228i (F22/23)/428i (F32/33/36) 14-16
L4-2.0L (t) N20/N26
Part Number: 46-31009
$330.75

MSRP: $393.75

Details:

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 +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
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Overview

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.

Applications

Vehicle Applications

Year Make Model SubModel Engine Fuel
2014-2016BMW 220i (F22/F23) Turbo N20 L4 2.0L Gas
2014-2016BMW 228i (F22/F23) Turbo N20/N26 L4 2.0L Gas
2012-2018BMW 320i (F30) Turbo N20 L4 2.0L Gas
2013-2018BMW 320i xDrive (F30) Turbo N20 L4 2.0L Gas
2012-2016BMW 328i (F30) Turbo N20/N26 L4 2.0L Gas
2013-2016BMW 328i xDrive (F30) Turbo N20/N26 L4 2.0L Gas
2014-2016BMW 328i xDrive (F31) Turbo N20/N26 L4 2.0L Gas
2014-2016BMW 328i GT xDrive (F34) Turbo N20 L4 2.0L Gas
2015-2016BMW 328i GT xDrive (F34) Turbo N26 L4 2.0L Gas
2014-2016BMW 428i (F32/F33) Turbo N20/N26 L4 2.0L Gas
2014-2016BMW 428i xDrive (F32/F33) Turbo N20/N26 L4 2.0L Gas
2015-2016BMW 428i Gran Coupe (F36) Turbo N20/N26 L4 2.0L Gas
2015-2016BMW 428i xDrive Gran Coupe (F36) Turbo N20/N26 L4 2.0L Gas
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