Silver Bullet Throttle Body Spacer - N52

Silver Bullet throttle body spacers create turbulence in the air flow at the point just before entry to the engine
Mfg Part #
46-31011
ECS Part #
ES#4325188
Brand
AFE
136.00
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Product Details

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 black anodized finish.

Premium Hardware:
This Silver Bullet throttle body spacer includes quality, machined screws, allowing for a secure, factory-like, non-damaging install to your factory intake manifold.

Other Features:

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

This Part Fits the Following Vehicles

Make Model Submodel Engine
BMW E82 128i N52 3.0L
BMW E88 128i N52 3.0L
BMW E90 325i N52 3.0L
BMW E90 325xi N52 3.0L
BMW E90 328i N52 3.0L
BMW E90 328xi N52 3.0L
BMW E90 330i N52 3.0L
BMW E90 330xi N52 3.0L
BMW E91 325xi N52 3.0L
BMW E91 328i N52 3.0L
BMW E91 328xi N52 3.0L
BMW E92 328i N52 3.0L
BMW E92 328xi N52 3.0L
BMW E93 328i N52 3.0L
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

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