2021 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE

Air Intake Boot: Installation

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the turbo duct bracket, and install the cushion to the turbo duct bracket.
    NOTE:
    • Align protrusion of the turbo duct bracket to the rotation stopper hole. 
    • Align the protrusion of the cushion with the cutout portion on the turbo duct bracket. 

    Tightening torque: 

    Nut: 7.5 N.m (0.8 kgf-m, 5.5 ft-lb)

    Bolt: 18 N.m (1.8 kgf-m, 13.3 ft-lb)

    G14610455Courtesy of SUBARU OF AMERICA, INC.
  2. Connect the turbo duct and the air intake boot.
    NOTE:

    Align the protrusion on the turbo duct to the cutout portion of the air intake boot. 

    Tightening torque: 

    2.5 N.m (0.3 kgf-m, 1.8 ft-lb)

    G14610454Courtesy of SUBARU OF AMERICA, INC.
  3. Install the turbo duct and the air intake boot as a single unit.
    NOTE:

    Align the cutout portion on the turbo duct to the protrusion of cushion. 

    Tightening torque: 

    7.5 N.m (0.8 kgf-m, 5.5 ft-lb)

    G14610453Courtesy of SUBARU OF AMERICA, INC.
  4. Install the mud guard front RH. Ref. to EXTERIOR/INTERIOR TRIM>MUD GUARD>INSTALLATION
  5. Connect the air intake boot to the intake duct No. 1.
    NOTE:

    Align the cutout portion of the air intake boot to the protrusion on the intake duct No. 1. 

    Tightening torque: 

    2.5 N.m (0.3 kgf-m, 1.8 ft-lb)

    G14610451Courtesy of SUBARU OF AMERICA, INC.
  6. Install the under cover front. Ref. to EXTERIOR/INTERIOR TRIM>FRONT UNDER COVER>INSTALLATION
  7. Connect the turbo duct to the air cleaner case (rear).
    NOTE:

    Align the cutout portion on the turbo duct to the protrusion of the air cleaner case (rear). 

    Tightening torque: 

    2.5 N.m (0.3 kgf-m, 1.8 ft-lb)

    G14610450Courtesy of SUBARU OF AMERICA, INC.
Chapter Navigation
Return to Chapter: Air Intake Boot
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.