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 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
Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.
Prop 65 Warning
Product Q&A
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Fits These Cars
MAKE
MODEL
SUBMODEL
ENGINE
Special Fitment Notes
BMW
E82
128i
N52 3.0L
Use vehicle selector to confirm fitment
BMW
E88
128i
N52 3.0L
Use vehicle selector to confirm fitment
BMW
E90
325i
N52 3.0L
Use vehicle selector to confirm fitment
BMW
E90
325xi
N52 3.0L
Use vehicle selector to confirm fitment
BMW
E90
328i
N52 3.0L
Use vehicle selector to confirm fitment
BMW
E90
328xi
N52 3.0L
Use vehicle selector to confirm fitment
BMW
E90
330i
N52 3.0L
Use vehicle selector to confirm fitment
BMW
E90
330xi
N52 3.0L
Use vehicle selector to confirm fitment
BMW
E91
325xi
N52 3.0L
Use vehicle selector to confirm fitment
BMW
E91
328i
N52 3.0L
Use vehicle selector to confirm fitment
BMW
E91
328xi
N52 3.0L
Use vehicle selector to confirm fitment
BMW
E92
328i
N52 3.0L
Use vehicle selector to confirm fitment
BMW
E92
328xi
N52 3.0L
Use vehicle selector to confirm fitment
BMW
E93
328i
N52 3.0L
Use vehicle selector to confirm fitment
*The above product applications have been written by Turner Motorsport. All
warranties, product application, fitment, and performance are the responsibility of Turner Motorsport.
For additional information see the terms of use.