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The aFe 46-31009 is a serrated/helix-entry 6061-T 6 aluminum spacer for the exact N20/N26 turbo 2.0L BMW applications below. Its supplied hardware includes two cable ties to keep wiring away from the intake tube. The current exact manual does not state a numerical torque.
| Years / source scope | Model | Exact requirements |
|---|---|---|
| 2014–2016 | 220i / 228i F22/F23; 228i xDrive 2015–2016 | N20/N26; exact current family support and retailer named-model detail |
| 2012–2016 family / 2012–2015 manual | 328i/xi F30/F31/F34; carried GT xDrive | N20/N26; current headline/retailer extends beyond older manual header |
| 2014–2016 | 428i/xi F32/F33/F36 and carried Gran Coupe rows | N20/N26; exact named year/body arrangement |
| 2013–2018 retailer / current manufacturer family ends 2016 | 320i / 320i xDrive | Existing later rows source-qualified; retailer also prints B48 for some later cars, not manufacturer N20/N26 proof |
46-31009: The current manufacturer page names220i/228i/ 320i/328i/428i families, while the older manual explicitly lists228xi/i,328xi/i and428xi/i with narrower years. Exact current BMP/ModBargains tables corroborate the carried320i through 2018 and328i through 2016 but also label some later320i entries B48. Those existing rows remain a disclosed manufacturer/retailer engine-scope conflict; no blanket B48 support is claimed. Missing220i 2014–2016,228i xDrive 2015–2016 and428i xDrive 2014–2016 rows are restored from exact sources. Do not confuse228i xDrive with a later228i xDrive Gran Coupe.
| Detail | Value |
|---|---|
| Manufacturer Part Number | 46-31009 |
| Material / design | 6061-T6 billet aluminum; serrated/helix entry |
| Engine / application | See exact engine-specific fitment table and source qualifications |
| Sealing arrangement | One supplied gasket at manifold/spacer interface; AIR IN toward throttle body and sticker upward. |
| Throttle-body fastening | No numerical value in exact linked manual; confirm actual application/revision requirement. |
| Emissions scope | The current exact page cites D-550-11 / D-550-17 for some or all applications. Exact exemption scope is not fully certified here; match the actual engine/year and required EO label rather than asserting blanket 50-state coverage. |
aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.
A model- and engine-specific Silver Bullet throttle-body spacer, not a complete intake or replacement throttle body.
Does it include a filter or coupling?The exact parts list below governs. Generic manufacturer page fields do not establish a supplied intake filter or coupling for this spacer.
Are gains guaranteed?No. Turbulence, throttle-response and whistle statements are manufacturer design claims, not guaranteed horsepower, fuel-economy or sound results for the actual engine.
Which sealing parts are used?One supplied gasket at manifold/spacer interface; AIR IN toward throttle body and sticker upward.
What is the correct torque?No numerical value in exact linked manual; confirm actual application/revision requirement.
Are all original search rows certified?The current manufacturer page names220i/228i/ 320i/328i/428i families, while the older manual explicitly lists228xi/i,328xi/i and428xi/i with narrower years. Exact current BMP/ModBargains tables corroborate the carried320i through 2018 and328i through 2016 but also label some later320i entries B48. Those existing rows remain a disclosed manufacturer/retailer engine-scope conflict; no blanket B48 support is claimed. Missing220i 2014–2016,228i xDrive 2015–2016 and428i xDrive 2014–2016 rows are restored from exact sources. Do not confuse228i xDrive with a later228i xDrive Gran Coupe.
Can another spacer’s instructions be substituted?No. Gaskets, O-rings, brackets, screw sizes, control cables and intake restrictions differ by exact part number.
Does the EO reference cover every application?The current exact page cites D-550-11 / D-550-17 for some or all applications. Exact exemption scope is not fully certified here; match the actual engine/year and required EO label rather than asserting blanket 50-state coverage.
46-31009: installation details and any unresolved source scope must be matched to the actual vehicle before use.
California Proposition 65 warning: this product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.
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