aFe Throttle Body Spacer - E60 550i E63 650i E53 X5 4.8is

Silver Bullet throttle body spacers create turbulence in the air flow at the point just prior entry into the engine increasing horsepower, torque - +10 hp, +14 lbs/ft torque - and improving throttle response and fuel efficiency. Silver Bullet throttle body spacers are constructed out of durable T-6061 billet aluminum and using a unique serrated/helix entry to create turbulence at the manifold while eliminating the annoying whistle found in other helix only throttle spacers. This throttle body spacer is 50-state legal (CARB E.O Number D-516-2). Click here for installation instructions

This item fits the following BMWs:
2004-2010 E60 BMW 550i
2004-2010 E63 BMW 650i
2002-2008 E65 BMW 750i 750li
2004-2006 E53 BMW X5 4.8is
T#: 4316 | Part#: 46-31006 | EO#: D-550-11
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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139.00 $139.00
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Est. Ship Date:
Ships Jul 13, 2026
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aFe Throttle Body Spacer - E60 550i E63 650i E53 X5 4.8is
$139.00

Cross Reference
  • 46-31006
  • 4631006
  • afe46-31006