54-81222 - aFe Intake System - MagnumFORCE Stage 2 Si

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Part #: 54-81222
Notes: Magnum FORCE Stage-2 Si Pro 5R Air Intake System
Incl. Air Filter/Heat Shielding Molded Housing/Aluminum Cover/Heat Insulating Molded Intake Tube
+12 HP/+16 Lbs. x Ft. Torque
MSRP: $498.75
Your Price: $395.01

This Item Also Available In

Part Number Price Notes & Specs
51-81222 $395.01 Notes Magnum FORCE Stage-2 Si PRO DRY S Air Intake System
Incl AirFilter/Heat Shielding MoldedHousing/Brushed Alum Cover/Heat Insulating Molded Intake Tube
+12HP/+16Lbs. x Ft. Torque

All Fitments

Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2007 - 2008 TUNDRA ALL V8 4.7 ALL ALL ALL
2009 - 2009 TUNDRA BASE V8 4.7 ALL ALL ALL
2009 - 2009 TUNDRA SR5 V8 4.7 ALL ALL ALL

Product Description

If you want to maintain a factory appearance the aFe Stage 2 Si Sealed Air Box provides quiet performance and industry-leading power gains.


  • 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.

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