Home / Shop / aFe Magnum Force Stage 2 Si Pro Dry S Air Intake Systems 51-81174 Intake, S, Toyota, 5.7L, Kit

aFe Magnum Force Stage 2 Si Pro Dry S Air Intake Systems 51-81174 Intake, S, Toyota, 5.7L, Kit

SKU: AFE51-81174

Air Intake Kits

aFe Magnum Force Stage 2 Si Pro Dry S Air Intake Systems 51-81174 Intake, S, Toyota, 5.7L, Kit

Afe

aFe Magnum Force Stage 2 Si Pro Dry S Air Intake Systems 51-81174 Intake, S, Toyota, 5.7L, Kit

SKU: AFE51-81174

Air Intake Kits

Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

Sealed, molded plastic or aluminum cover provides factory style with less intake noise than open systems. Our specially engineered air box openings pull cold air from outside the engine compartment increasing engine efficiency and producing greater performance gain. The cross-linked polypropylene rotomolded plastic air box replaces restrictive stock air box and ensures a consistent supply of cold fresh air; built-in ram scoop forces cold, outside air to filter. Precision designed molded plastic intake tube maximizes airflow volume and speed for optimum power gains. 360 degree flow, washable and reusable, limited lifetime filters are high flow and high performance.

Product Overview

If you want to maintain a factory appearance the aFe Stage 2 Si Sealed Air Box provides quiet performance and industry-leading power gains. *Features* * *Ram Air Scoop* - Built-in ram scoop forces cold air to filter for greater efficiency and performance gains. * *Clamp Stops* - Raised stops on aFe tubes provide a more secure seal and eliminate slippage versus flat, straight tubes. * *3-Angle Adapter* - Specially developed velocity stack with 3 different angles dramatically increase airflow from the filter to the intake tube. * *Quality Hardware* - aFe uses only top-quality hardware like stainless steel button head bolts and brass inserts. * *MAF Sensor Pad* - Precision tuned MAF Sensor Pad will not affect vehicle performance or produce check engine light warnings. * *3 Filter Media Choices* - Choose from the Pro 5R, Pro Dry S or Pro-GUARD 7 Filter.

Features and Benefits

+19 HP & +27 Lbs. x Ft. TQ
Outflows Factory Intake by 50%
Measured Flow: 253 CFM @ 1.5" H2O
Heat-Resistant Sealed Housing w/ Black Powder-Coated Cover
Washable and Reusable Pro DRY S Air Filter for Maximum Convenience

Product Details

Air Box Type:	Closed
Description:	Magnum FORCE Stage-2Si Cold Air Intake System w/ Pro DRY S Filter
ECU Tuning Required:	No
Heat Shield Included:	Yes
Mass Air Flow Sensor Mounting Provision:	Yes
Mounting Hardware Included:	Yes
Part Number:	afe51-81174

Application Summary

Toyota Tundra 07-21/Sequoia 07-14 V8-5.7L

Part Type

Available to Order

Data: v4.2 - Upd: 2026-10-14 11:15:15

Features

+19 HP & +27 Lbs. x Ft. TQ

Specifications

Product Attributes - UPC: 802959513385
Product Attributes - Brand: AFE Power
Product Attributes - Quantity: Sold as a kit.
Product Attributes - Part Type: Air Intake Kits
Product Attributes - Tube Color: Black
Product Attributes - Filter Color: White
Product Attributes - Product Line: aFe Magnum Force Stage 2 Si Pro Dry S Air Intake Systems
Product Attributes - Sleeve Color: Black
Product Attributes - Tube Material: Plastic
Product Attributes - Air Filter Type: Dry
Product Attributes - Filter End Cap Color: Black
Product Attributes - Air Intake Filter Material: Synthetic
Product Attributes - Manufacturer's Part Number: 51-81174

Reference Information

Brand Name/s	Afe
StreetFX SKU	afe51-81174
SFX Item ID	4781925
Supplier Item Code	4781925
Manufacturer SKU	51-81174
Manufacturer UPC	802959513385
Alternative References	5.7L