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GrimmSpeed MAF Block Off Plate (Part Number: )
GrimmSpeed MAF Block Off Plate (Part Number: )
GrimmSpeed MAF Block Off Plate (Part Number: )
GrimmSpeed MAF Block Off Plate (Part Number: )
GrimmSpeed MAF Block Off Plate (Part Number: )
GrimmSpeed MAF Block Off Plate (Part Number: )
GrimmSpeed MAF Block Off Plate (Part Number: )
GrimmSpeed MAF Block Off Plate
Subaru WRX/STI / FXT 2002-2007
Read 1 Reviews | 1 Q&As
Part # 053001

In stock! Ships same day

Features & Product Details

When you upgrade your Subaru to a Blow Through System you will need a way to block off the location where the old MAF Sensor was located. Now GrimmSpeed has the answer with the GrimmSpeed MAF Block-Off Plate which allows you to black off the factory MAF provision. This compact design features black anodized aluminum for a very clean finish. Grimmspeed has taken it one step further and matched the bottom of the plug to the diameter of the Subaru intake piping so the plug is not in the way of flow.

Installation of this component is considered to be simple and can be done in a few minutes. An O-ring will be supplied to provide a perfect airtight seal, and hardware will also be provided to make this MAF Block-Off Plate ready for the installation. 


Brand: GrimmSpeed
Installation Hardware Included: Yes
Material: Aluminum
Mfgr. Warranty: Lifetime
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
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GS block off plate 6 years ago
5out of 5stars

My car is running speed density so I don't need a MAF sensor, and to avoid the MAF breaking and going through my turbo I bought this. The fitment was very snug, which is good. However the gasket was a little loose so it folded over a few times while installing. After taking my time and slowly installing it, it fit perfectly and very tight. I have no worries that this will never leak, Grimmspeed rocks and always does high quality testing to ensure their products never fail.
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  • Q: :/  mc9507 years ago

    ok so im a bit of a noob, so this goes on where the bov is to stop the airflow venting and forcing it out through the pod filter?
    • 0 of 0 people found the following answer helpful

      A:  Hello, this product will be useful to anyone who is running a blow through MAF setup, where they relocate the position of their MAF sensor after the turbo, or for anyone who decides to ditch the MAF sensor all together and go with a MAP setup, so basically this product will just block off the factory MAF location. It will not affect the blow off valve in any way. Please let us know if you have any questions or concerns. Thanks.

      Rick C. @ RallySport Direct 7 years ago  
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