aFe 54-10471 is the Magnum FORCE Stage-1 Pro 5R intake for the BMW 540i E39 1997-2003 with the 4.4L V8. It supplies one oiled filter, a metal heat shield, three-angle filter adaptor and rubber coupling while retaining the original MAF assembly and intake tube. The original temperature sensor transfers into the supplied rubber grommet.
Current exact primary and October 2008 revised illustrated manual identify E39 540i 1997-2003 4.4L V8; exact retailers identify the M62 engine family. Preserve the existing Base row and its full bounds. Confirm actual chassis, engine, original MAF/intake tube, temperature sensor and mounting hardware. An older retailer-hosted sheet mentions 4.0L, but current selected primary/manual coverage is 4.4L and no separate 4.0L or other model mapping is added. A related N62 545i/550i spacer suggestion does not extend this E39 intake to those engines. Current primary cites D-550-3 for some or all applications, while full exact order conditions and exclusions remain unverified.
| Years | Make | Model | Named trim; actual engine and hood requirements apply |
|---|---|---|---|
| 1997-2003 | BMW | 540i | Base |
Verify 54-10471 against the actual engine, sensor and vent connections, mounting locations and applicable emissions requirements before ordering.
| Brand | aFe POWER |
| Manufacturer Part Number | 54-10471 |
| Product type | Magnum FORCE Stage-1 cold air intake |
| Vehicle | BMW E39 540i, 1997-2003, 4.4L V8 |
| Selected filter | One 24-91007 five-layer oiled Pro 5R, inverted top |
| Filter dimensions | 5-1/2-inch flange, seven-inch base, 5-1/2-inch top, eight-inch height |
| Housing | 16-gauge powder-coated metal |
| Filter adaptor | Three-angle adaptor; five button-head mounting screws |
| Original intake parts | Original MAF assembly and engine intake tube retained |
| Coupling | One rubber coupler; exact dimensions not stated |
| Clamps | One #064 and one #072 |
| Temperature sensor | Original unit through supplied rubber grommet |
| Adaptor screws | Five M6 x 1 x 10 button-head screws |
| Housing fastener | One M6 x 1 x 12 hex screw, one flat washer, one lock washer |
| Original mounts | Factory 10mm-tooling nut and 8mm-tooling screw reused at illustrated B/C locations |
| Trim | 28 inches of 7/16-inch seal |
| Performance evidence | 10 hp / 14 lb-ft / 62% flow advertised; actual chart lacks complete comparison legend/run conditions; no flow report |
| Emissions | D-550-3 cited; full exact conditions and exclusions held |
| Procedure limits | No battery step, numeric torque, recheck interval or mileage stated |
| UPC | 802959500934 |
| WARNING | This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov. |
| Quantity | Manufacturer service part | Component |
|---|---|---|
| 1 | 24-91007 | Selected oiled Pro 5R filter |
| 1 | Filter shield | 16-gauge powder-coated metal |
| 1 | Three-angle adaptor | Filter connection |
| 5 | M6 x 1 x 10 | Button-head adaptor screws |
| 1 | M6 x 1 x 12 | Hex-head housing screw |
| 1 | M6 | Flat washer |
| 1 | M6 | Lock washer |
| 1 | Rubber grommet | Original temperature sensor |
| 1 | Rubber coupling | Dimensions not stated in exact bill |
| 1 | #064 | Clamp |
| 1 | #072 | Clamp |
| 28 inches | 7/16-inch trim seal | Housing edge |
Only one selected oiled filter is supplied. The shared dry-media reference is an alternative. The original MAF assembly and intake tube remain; the rubber coupling replaces the original airbox-to-MAF interface. The original spring clips are removed during disassembly, but no new spring clips are listed in this bill. No replacement molded tube, separate top cover, new sensor or new MAF gasket is included. Required 4mm Allen and 8mm/10mm tooling are not supplied components.
aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.
One oiled filter, metal shield, three-angle adaptor, rubber coupling, two clamps, sensor grommet, five adaptor screws, one housing screw with flat/lock washers and edge trim.
Does Stage-1 include a replacement engine intake tube?No. Retain the original engine intake tube and original MAF assembly. The selected rubber coupling connects the new adaptor to that retained assembly.
Are new MAF spring clips or a gasket supplied?Neither is in this exact bill. Original spring clips are removed during airbox disassembly; the new rubber coupling uses its two supplied clamps.
Where does the temperature sensor go?Transfer the original sensor into the supplied rubber grommet fitted in the shield, following the exact illustration.
How is the shield mounted?At A use the supplied M6 hex screw and flat/lock washers. At B reuse the original nut with 10mm tooling, and at C reuse the original screw with 8mm tooling.
Does the older 4.0L sheet add another engine application?No new mapping is made. Current exact primary and revised sheet identify the 4.4L E39 540i for 1997-2003; verify actual engine and intake arrangement.
Are the advertised gains and exemption fully verified?The chart lacks complete comparison/run conditions and no flow report is linked. D-550-3 is cited, but full exact conditions and exclusions remain unverified.
What battery, torque and recheck instructions apply?Secure all hoses, clamps and electrical components. The exact sheet gives no battery-disconnection step, numeric torque, recheck interval or mileage instruction.
Verify aFe 54-10471. Read all fifteen images of the exact revised sheet. Remove the original temperature sensor from the airbox, remove the two spring clips joining the MAF to the stock box and remove the original airbox mounting bolt with 10mm tooling. Lift the original airbox out. Attach the three-angle adaptor to the shield using the five supplied button-head screws, install the rubber sensor grommet and place the rubber coupling loosely on the adaptor. Lower the shield into position while retaining the original MAF and engine-side tube. At illustrated mount A use the supplied M6 hex screw, flat washer and lock washer; at B reuse the original nut with 10mm tooling; at C reuse the original screw with 8mm tooling. Align the rubber coupling at the adaptor/MAF connection and tighten its two clamps. Install the original temperature sensor into the grommet, apply the trim seal and install the selected filter. Ensure all hoses and clamps are tight and electrical components are secure. Apply the EO sticker only for the exact covered application and conditions. The exact sheet gives no battery-disconnection step, numeric torque, periodic-check instruction, recheck interval or mileage instruction.
The current exact primary, complete October 2008 revised one-page manual, full bill and all fifteen images were reviewed with the actual linked dyno chart. This Stage-1 kit retains the original tube and MAF but includes a rubber coupling; its dimensions are not borrowed from a different BMW intake. Five supplied adaptor screws and the distinct A/B/C housing mounts are documented, with original temperature-sensor transfer through a new grommet. The older 4.0L/4.4L sheet is not used to expand current 4.4L coverage. The chart identifies the selected kit and a 1998 BMW 540i, with handwritten baseline notation and dated print/run information, but lacks a complete stock/modified comparison legend, exact numerical run table, test configuration and correction/weather conditions. Advertised 10 hp/14 lb-ft are not independently certified, and no flow report verifies 62%. Current primary cites D-550-3; full exact application conditions and exclusions remain held. Original single Base row, bounds, tags and native memberships are unchanged. No extra sensor, coupling dimensions, replacement tube, cover, battery step, torque or recheck interval is inferred.
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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