aFe 50-70060D is the Momentum GT Pro DRY S intake for the specified BMW B58 3.0L turbo applications. It supplies one 21-91144 three-layer synthetic oil-free filter, XLPE tube and window housing, silicone turbo-inlet bellows and aluminum quarter-NPT breather fitting. The exact current manufacturer expressly excludes vehicles complying with BMW RDE statutes; that restriction applies to every named row. B58 is the correct engine designation, replacing the old N58 title.
Every row requires B58 3.0L turbo, the stated chassis, actual original connections and non-RDE configuration. The exact current 16-page manual and complete exact selected dry retailer table support M340i/M340i xDrive G20 2020-2024; M440i/M440i xDrive G22/G23 2021-2025; M440i xDrive Gran Coupe G26 2022-2025; M240i G42 2023-2025; and M240i xDrive G42 2022-2025. The three original named rows extend to their documented endpoints; four missing genuine named Base groups are restored. More recent retailer-only 2026 endpoints and rear-drive M440i Gran Coupe remain held without inference or extension beyond those exact manual ranges. No F-chassis, S58 M2/M3/M4, N58 engine or engine/drivetrain pseudo-trim is created. Retailer positives do not waive the current primary RDE exclusion.
| Years | Make | Model | Named trim; actual engine and hood requirements apply |
|---|---|---|---|
| 2020-2024 | BMW | M340i | Base |
| 2020-2024 | BMW | M340i xDrive | Base |
| 2021-2025 | BMW | M440i xDrive | Base |
| 2023-2025 | BMW | M240i | Base |
| 2022-2025 | BMW | M240i xDrive | Base |
| 2021-2025 | BMW | M440i | Base |
| 2022-2025 | BMW | M440i xDrive Gran Coupe | Base |
Verify 50-70060D against the actual engine, sensor and vent connections, mounting locations and applicable emissions requirements before ordering.
| Brand | aFe POWER |
| Manufacturer Part Number | 50-70060D |
| Engine / body qualification | B58 3.0L turbo; G20/G22/G23/G26/G42 as listed; RDE excluded |
| Selected filter | 21-91144; three-layer synthetic oil-free Pro DRY S |
| Filter geometry | 4-1/2-inch round flange; 6-inch base; 4-1/2-inch inverted top; 6-inch height |
| Tube / housing | 05-5070060B1 / 05-5070060B2; XLPE |
| Bellows | 05-01525; 3.1-inch ID x 3-inch length |
| Coupling clamps | Two 03-50007 SAE #048 |
| Breather fitting | 03-50644; aluminum quarter-NPT |
| Sensor screws | Two 03-50490 M4; length unspecified |
| Auxiliary plug | 05-01482 |
| Torque / recheck | No numeric torque; check bolts, clamps and connectors after 100-200 miles |
| Quantity | Manufacturer service part | Component |
|---|---|---|
| 1 | 21-91144 | Selected three-layer oil-free Pro DRY S filter |
| 1 | 05-5070060B1 | XLPE intake tube |
| 1 | 05-5070060B2 | XLPE window housing |
| 1 | 05-01525 | Silicone bellows |
| 2 | 03-50007 | SAE #048 coupling clamps |
| 1 | 03-50644 | Aluminum quarter-NPT breather fitting |
| 1 | 05-01482 | Optional auxiliary-inlet plug |
| 2 | 03-50490 | M4 temperature-sensor screws; length unspecified |
The shared bill lists the oiled filter as an alternative configuration, not another filter in this listing. The procedure also uses the selected filter clamp, separate from the two itemized coupling clamps; no unlisted service size is invented. The primary describes an aluminum heat-shield panel and the housing illustration shows its attached panel, but the bill does not separately itemize another loose shield. Retain the original temperature sensor, crankcase line, three mounting grommets and brace where fitted. This is the manual temperature-sensor procedure, not a borrowed MAF conversion. The exact bill gives no sensor screw length.
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 oil-free dry filter, XLPE housing and tube, silicone turbo bellows, two #048 coupling clamps, aluminum quarter-NPT fitting, optional rear-inlet plug and two M4 temperature-sensor screws.
Which filter does this configuration include?One 21-91144 Pro DRY S filter with three oil-free synthetic layers, a 4-1/2-inch round flange and 6-inch height.
Does it fit BMW RDE-compliant vehicles?No. The exact current manufacturer page expressly excludes BMW RDE-compliant vehicles. That restriction applies to every listed model and year.
Which M240i chassis and years are documented?The current manual specifies G42 M240i 2023-2025 and G42 M240i xDrive 2022-2025. Earlier F-chassis or later secondary-only years are not inferred.
How should the turbo-inlet bellows seat?Its end sits flush to the inlet rim so the internal bead engages the turbo-inlet groove. Tighten the inlet-side clamp before final tube alignment.
Should the NPT fitting hex touch the tube?The manual explicitly says the small gap below the fitting hex is normal. Do not force it flush.
Which original parts are retained?The temperature sensor, crankcase breather line, three mounting grommets and original brace where fitted. Restore the brace before completing installation.
Are the advertised gains positive peak gains?The selected dry sheet marks 9.41 hp and 10.48 lb-ft at 4699 rpm, while maxima differ by 4.91 hp and 3.83 lb-ft. Test dates and SAE factors differ. No numeric installation torque is given; recheck at 100-200 miles.
Verify aFe 50-70060D. Read all sixteen pages and figures A-I on a cool engine. Remove the brace above the original intake if equipped. Gently disconnect the temperature-sensor harness, loosen the original airbox clamp with a 6 mm driver and slide the tube away. Lift the airbox from its mounts. Detach wiring from the original tube, carefully remove its turbo-inlet retaining ring, disconnect the crankcase breather line and remove the tube. Transfer the original temperature sensor using the supplied M4 screws. Install the aluminum NPT fitting; the manual explicitly permits a small gap between the tube and fitting hex. Lock the selected filter tabs into the new housing and leave its filter clamp loose. Fit the optional rear-inlet plug if desired. Place the bellows and both #048 clamps over the original turbo inlet. The bellows end must sit flush to the inlet rim so its internal bead seats correctly in the inlet groove. Tighten the turbo-side clamp while leaving the other end loose. Install the new tube, reconnect the original crankcase line, align both and tighten the tube-side coupling clamp. Press the assembled housing/filter into the three original mount grommets, slip the tube into the filter and tighten its clamp. Reconnect the temperature sensor and restore the original brace where equipped. Verify clearances and connections. The manual supplies no battery-disconnection step or numeric torque. Check bolts, clamps and connectors after 100-200 miles.
The exact current dry primary and its complete linked 16-page manual, bill and figures A-I were read and visually inspected. The actual flow chart labels dry 325 CFM versus stock 295 CFM at 7 inches H2O, a calculated 10.17% increase; oiled 340 CFM is a different medium. The exact selected dry dyno marks 338.22 versus 328.81 hp and 378.03 versus 367.55 lb-ft at 4699 rpm, differences of 9.41 hp and 10.48 lb-ft. Separate maxima are 379.62 versus 374.71 hp and 408.24 versus 404.41 lb-ft, differences of 4.91 hp and 3.83 lb-ft. Both runs identify a 2020 M340i B58 with original ECU, downpipe, exhaust and 225/45R18 OEM wheels/tires, fifth gear, sport/dyno modes, inductive signal-wire RPM connection, hood open, one large and two small fans. Baseline is July 30, 2020 at 12:21:58 PM, SAE 1.03; selected intake is August 18, 2020 at 12:37:21 PM, SAE 1.06 and notes with miles without quantification. Different dates and correction factors limit generalization; headline point gains are not differences between maxima. The auxiliary inlet can admit warmer engine-bay air; its optional plug prioritizes front air and reduces sound. Exact selected-part named rows through 2025 support the restored groups; later 2026 retailer endpoints remain held against current manual limits. Non-CARB and California registered-vehicle restrictions apply, and BMW RDE vehicles are expressly excluded.
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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