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aFe Momentum GT PRO DRY S Intake System 2020 GM Diesel Trucks 2500/3500 V8-6.6L (L5P) aFe AFE50-70056D
aFe Momentum GT PRO DRY S Intake System 2020 GM Diesel Trucks 2500/3500 V8-6.6L (L5P) aFe AFE50-70056D
aFe Momentum GT PRO DRY S Intake System 2020 GM Diesel Trucks 2500/3500 V8-6.6L (L5P) aFe AFE50-70056D
aFe Momentum GT PRO DRY S Intake System 2020 GM Diesel Trucks 2500/3500 V8-6.6L (L5P) aFe AFE50-70056D
aFe Momentum GT PRO DRY S Intake System 2020 GM Diesel Trucks 2500/3500 V8-6.6L (L5P) aFe AFE50-70056D
aFe Momentum GT PRO DRY S Intake System 2020 GM Diesel Trucks 2500/3500 V8-6.6L (L5P) aFe AFE50-70056D
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aFe GM L5P Pro DRY S Momentum HD Intake

$ 543.75 $ 435.00
$ 435.00

aFe Momentum HD intake details

aFe 50-70056D is the Momentum HD intake with one Pro DRY S filter for specified GM Silverado/Sierra 2500HD and 3500HD 6.6L L5P turbo diesels. Its exact shared manual includes a MAF extension for 2024 and later vehicles, an optional resonator-removal path, and an explicit engine-air-filter-life reset and disable requirement.

Key Features

  • One 21-91147 filter; three-layer oil-free synthetic Pro DRY S.
  • XLPE tube 05-5070056B1 and windowed housing 05-5070056B2.
  • 17-degree silicone reducer elbow 05-01420, 100 mm x 108 mm, for the resonator-removal branch.
  • Three specified T-bolt clamps, two M4 x 8 mm sensor screws and original MAF transfer.
  • MAF extension 05-70047: the exact manual specifies use on 2024+ vehicles only.
  • Top inlet seal 05-01562 and optional auxiliary-inlet plug 05-01429.

Fitment

The exact current primary pages cover the 2020–2026 L5P diesel family; the shared 16-page manual’s cover lists 2020–2024 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD, with an explicit 2024+ wiring branch. The exact selected dry-kit retailer table supplies named-trim rows through 2025; later 2026 named mapping remains held despite the current manufacturer family headline. Existing named groups are extended only to their exact selected-kit table bounds; missing Custom, ZR2, Silverado 3500HD LT, Sierra AT4/AT4X/Denali Ultimate/Pro and Sierra 3500HD Base groups follow each table’s actual starts and endpoints. Base ends in 2021 and Pro begins in 2022; no blanket trim-year extension is applied. Every row requires the actual 6.6L L5P diesel, corresponding turbo/sensor/mounting layout and the proper 2024+ harness revision; 6.6L gasoline trucks sharing model and trim names are not approved. No invented engine or drivetrain submodel is added.

Years Make Model Named trim; actual engine and hood requirements apply
2020-2025 Chevrolet Silverado 2500 HD High Country
2020-2025 Chevrolet Silverado 2500 HD LT
2020-2025 Chevrolet Silverado 2500 HD LTZ
2020-2025 Chevrolet Silverado 2500 HD WT
2021-2025 Chevrolet Silverado 2500 HD Custom
2024-2025 Chevrolet Silverado 2500 HD ZR2
2020-2025 Chevrolet Silverado 3500 HD High Country
2020-2025 Chevrolet Silverado 3500 HD LT
2020-2025 Chevrolet Silverado 3500 HD LTZ
2020-2025 Chevrolet Silverado 3500 HD WT
2020-2025 GMC Sierra 2500 HD AT4
2020-2021 GMC Sierra 2500 HD Base
2020-2025 GMC Sierra 2500 HD Denali
2020-2025 GMC Sierra 2500 HD SLE
2020-2025 GMC Sierra 2500 HD SLT
2022-2025 GMC Sierra 2500 HD Pro
2024-2025 GMC Sierra 2500 HD AT4X
2024-2025 GMC Sierra 2500 HD Denali Ultimate
2020-2025 GMC Sierra 3500 HD AT4
2020-2021 GMC Sierra 3500 HD Base
2020-2025 GMC Sierra 3500 HD Denali
2020-2025 GMC Sierra 3500 HD SLE
2020-2025 GMC Sierra 3500 HD SLT
2022-2025 GMC Sierra 3500 HD Pro
2024-2025 GMC Sierra 3500 HD Denali Ultimate

Verify 50-70056D against the actual engine, sensor and vent connections, mounting locations and applicable emissions requirements before ordering.

Specifications

Brand aFe POWER
Manufacturer Part Number 50-70056D
Selected filter One 21-91147 Pro DRY S; 5-1/2-inch flange, 8-inch base and inverted top, 9-inch height
Tube / housing 05-5070056B1 / 05-5070056B2
Optional resonator-removal coupling 05-01420; 100 mm x 108 mm, 17 degrees
Clamps 03-50262 4-1/16 to 4-3/8; 03-50499 4-5/16 to 4-5/8; 03-50267 8-5/16 to 8-5/8 inches
MAF hardware Two Torx M4 x 8 mm 03-50491 screws; 05-70047 extension for 2024+ only
Seal / auxiliary plug 05-01562 inlet seal / 05-01429 silicone plug
Filter-life system Reset to 100%, then disable following the vehicle owner’s manual procedure
Torque / recheck No numeric torque; recheck bolts, clamps and connectors after 100–200 miles

What's Included

Quantity Manufacturer service part Component
1 21-91147 Selected Pro DRY S filter; alternate media is not another included filter
1 05-5070056B1 Intake tube
1 05-5070056B2 Windowed housing
1 05-01420 17-degree silicone reducer elbow, 100 mm x 108 mm
1 03-50262 Smaller turbo-side T-bolt clamp
1 03-50499 Larger coupling T-bolt clamp
1 03-50267 Large housing T-bolt clamp
2 03-50491 Torx M4 x 8 mm screws
1 05-01429 Auxiliary-inlet silicone plug
1 05-01562 Inlet seal
1 05-70047 MAF extension harness; use on 2024+ vehicles only

Reuse the original MAF, airbox mounting grommets, metal insert with its grommet, original fender retaining nut and original inlet scoop. If keeping the resonator, retain its factory coupling; the supplied reducer and its two smaller T-bolt clamps serve the removal branch. No new sensor, coolant hose, filter minder, screw dimensions from another kit, or extra seal-trim length is listed. The exact current BOM includes the extension; actual older boxed inventory was not inspected and must not be assumed to contain the later harness. A filter-care kit, pre-filter, tuner or charge-pipe system is separate. The dry listing is Momentum HD according to its exact current primary identity, correcting the old GT wording.

About aFe Power

aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.

Related Parts

Frequently Asked Questions

How many filters are supplied for 50-70056D?

One 21-91147 Pro DRY S filter. The alternative shared-manual media row is not a second included filter.

Does the kit fit 6.6L gas trucks?

No. Coverage is conditional on the actual L5P turbo diesel and matching hardware, even when gas trucks share model and trim names.

When is the MAF extension used?

The exact manual specifies the supplied 05-70047 extension for 2024+ vehicles only. Older boxed inventory was not inspected for that later harness.

Must the resonator be removed?

No. The manual provides a retained-resonator path using the original coupling and a removal path using the supplied reducer and smaller T-bolt clamps.

Are new MAF sensors supplied?

No. Transfer the original MAF using two supplied M4 x 8 mm screws.

What happens to the air-filter-life system?

The exact kit manual requires a reset to 100%, followed by disabling that system using the vehicle owner’s manual procedure.

Are the headline gains independent peak gains?

No. The dyno’s marked point gains differ from independent peak comparisons; retain the dates, SAE factors and test-configuration qualifications.

What torque and inspection interval apply?

No numeric torque is given. Recheck bolts, clamps and connectors after 100–200 miles.

Installation Instructions

Verify aFe 50-70056D. Read the complete exact manual on a cool engine. Disconnect MAF, loosen the original airbox and turbo coupling clamps and remove the original tube. Retain the fender airbox nut, lift the factory box from its mounts and restore any displaced mounting grommets to their bracket holes. Transfer the original metal insert and grommet to the new housing. Seat its mounting pins, reinstall the original fender nut from inside the new housing, and ensure the original inlet scoop enters its front opening. Loosely fit the selected filter and large T-bolt. If retaining the resonator, reuse its factory coupling and skip the removal hardware branch. If removing it, loosen the turbo clamp, remove the resonator nut and stock coupling, and fit the supplied reducer with the two smaller T-bolt clamps loosely. Transfer MAF using the supplied M4 x 8 mm screws. Install the tube into the coupling first and then the filter, align and tighten the clamps. Reconnect MAF directly on earlier vehicles; use the supplied extension on 2024+ vehicles as the manual specifies. Install the top inlet seal and choose whether to close the auxiliary opening with its separate silicone plug. The manual associates open use with additional airflow. Reset the engine-air-filter-life system to 100% using the owner’s manual procedure, then disable that system as this exact kit manual directs to prevent a persistent filter-system message. This manual gives no battery-disconnection step or numeric torque. Recheck bolts, clamps and connectors after 100–200 miles.

Important Disclosures

The exact selected page advertises 53-percent flow, 695 CFM and up to 16 hp/42 lb-ft. Both actual bench images compare Pro 10R 710, Pro DRY S 695 and stock 455 CFM at 7 inches H2O, about 56.0 and 52.7 percent. The dry-linked dyno marks gains of 15.91 hp (304.65 versus 288.74) and 42.44 lb-ft (800.17 versus 757.73); independent peaks differ by 3.99 hp (412.35 versus 408.36) and 4.73 lb-ft (832.30 versus 827.57). The selected media is explicitly identified on each 2020 L5P intake run. Baseline July 20, 2020 is SAE 1.03, while intake August 17 is SAE 1.05. Both list seventh gear, 40-percent load and a 1,500-rpm start. Point gains and independent peaks are separate comparisons under different conditions; the 2020 tests do not certify every later wiring/box revision or guarantee vehicle results. Current primary pages and exact manual state not CARB exempt and restrict California purchase/use on California-registered vehicles.

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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