aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black, view 2
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black, view 3
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black, view 4
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black, view 5
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black, view 6
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black, view 7
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black, view 8
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black, view 9
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black, view 2
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black, view 3
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black, view 4
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black, view 5
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black, view 6
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black, view 7
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black, view 8
aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 (2006-2013) - Black, view 9

aFe Silver Bullet Throttle Body Spacer - BMW 128i, 325i, 328i, 330i L6-3.0L N52 2006-2013 - Black

aFe SKU: AFE46-31011
Price
24% OFF
In Stock – Ready to Ship
Make sure this fits your vehicle Select your vehicle to confirm fitment before you order. Check
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The aFe Silver Bullet throttle body spacer fits between the throttle body and intake manifold on N52-powered BMWs, including the 128i, 325i, 328i and 330i. Its patented serrated/helix entry lengthens the intake tract and creates turbulence in the manifold, improving throttle response for dyno-proven gains up to +4 HP and +7 ft-lbs when paired with an aFe air filter, while reducing intake whistle. It is CNC-machined from 6061-T6 billet aluminum with a black anodized finish and includes machined mounting screws.

Specifications

Type Throttle body spacer (Silver Bullet)
Material 6061-T6 billet aluminum
Finish Black anodized
Included Machined mounting screws
Fitment BMW 128i, 325i, 325xi, 328i, 328xi, 330i, 330xi (L6-3.0L N52)
Engine L6-3.0L N52 Engine
Hardware Included Yes
Gaskets Included Yes
Color Black
Gains Up to +4 Horsepower hp and +7 Ft-Lbs lb-ft (aFe dyno)
Part Number 46-31011

This part fits:

Year Make Model Submodel
2008-2013 BMW 128i Base
2006 BMW 325i Base
2006 BMW 325xi Base
2007-2013 BMW 328i Base
2009-2013 BMW 328i xDrive Base
2007-2008 BMW 328xi Base
2006 BMW 330i Base
2006 BMW 330xi Base

Documents: Installation Instructions (PDF)

Which vehicles does this fit?

  • It fits the BMW 128i 2008-2013, BMW 325i 2006, BMW 325xi 2006, BMW 328i 2007-2013, BMW 328i xDrive 2009-2013, BMW 328xi 2007-2008 and 2 more models. The full year, make, model and submodel list is in the fitment table on this page.

What comes in the box?

  • Machined mounting screws.

What is it made of?

  • 6061-T6 billet aluminum.

Are installation instructions available?

  • Yes. The manufacturer instruction PDF is linked under Documents at the bottom of the description.

Shipping

  • Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
  • Standard, expedited, and overnight options at checkout.
  • Oversized items ship by freight and take longer.
  • Special order items follow a lead time we confirm with you individually before the order is committed.
  • Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
  • Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
  • International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

  • 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
  • Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
  • Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
  • Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
  • Product images may be representative. The SKU and specifications in the listing are what ships.
  • Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Returns & Refunds · Warranty
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