PERFORMANCE / EST. 2026
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Install

2022 WRX: add the PERRIN intake heatshield

Specific preparation, procedure and completion checks.

GUIDE OVERVIEW

Difficulty
Basic · 2/5
Time
1 min read; job time varies
Vehicle / platform
2022-onward WRX with PERRIN cold-air intake and PSP-INT-327-1
Tools
  • Panel tool or flat screwdriver
  • Hex driver
  • Torque wrench
Parts / supplies
  • PSP-INT-327-1 kit
STEP 01

Open the mounting area

Release the two intake-scoop fasteners and remove the scoop, keeping those fasteners for reuse. Remove the M6 screw holding the auxiliary fuse block to the chassis. Position the shield so its holes align with the chassis.

Sources 1

STEP 02

Start all mounts loosely

Install the two lower M6x14 screws with washers without tightening. Put the supplied spacer between the shield and plastic bracket, then start the longer M6x30 screw and washer. With all mounts aligned, tighten the M6 screws to 8 ft-lb.

Sources 1

STEP 03

Confirm filter separation

Check that the air filter does not touch the shield. If it does, loosen the intake mounting brackets and realign as instructed. Once clearance is established, restore the intake scoop with its original plastic fasteners.

Sources 1

Products in this guide

Sources / references 1
  1. PERRIN official instructions ↗Reviewed Oct 8, 2026

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