GrimmSpeed Subaru MAF Block Off User Manual
Grimmspeed maf block off plate, Installation instructions 2002+ subaru wrx/sti
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GrimmSpeed MAF Block Off Plate
Installation Instructions
2002+ Subaru WRX/STi
GrimmSpeed MAF Block Off Plate Installation Instructions
All GrimmSpeed components are intended for Off-Road use only.
Removing OEM MAF Sensor
1. Unplug MAF Sensor plug.
2. Remove (2) Philips head bolts.
3. Pull off OEM MAF Sensor.
Installing GrimmSpeed MAF Block Off Plate
1. Insert Block Off Plate Into MAF Sensor housing(make sure O-Ring
does not slip off Block Off Plate).
2. Tighten down Plate with (2) Philips head bolts.
NOTE: Subarus are MAF based so you must relocate the OEM MAF Sensor
after blocking the OEM Sensor location.
Please contact us if you have any questions during installation.
Thank you for your purchase!
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