Grimmspeed Manifold to Uppipe Gasket Double Thick

Part #: GRM 027001
( 10 reviews )


MSRP: $21.99


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Return Policy | Shipping



Brand: Grimmspeed
Gasket Layers: 12
Material: Stainless Steel
QTY: 1
Mfgr. Warranty: 2 Years
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.


Subaru Impreza
WRX STI 2004, 2005, 2006, 2007WRX STI Limited 2007WRX STI Hatchback 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX STI Special Edition Hatchback 2010WRX STI Limited Sedan 2011, 2012, 2013, 2014WRX STI Limited Hatchback 2011, 2012, 2013, 2014WRX STI Sedan 2011, 2012, 2013, 2014WRX 2002, 2003, 2004, 2005, 2006, 2007WRX TR 2006, 2007WRX Limited 2006, 2007WRX Sedan 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX Hatchback 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX Premium Sedan 2010, 2011, 2012, 2013, 2014WRX Premium Hatchback 2010, 2011, 2012, 2013, 2014WRX Limited Sedan 2010, 2011, 2012, 2013, 2014WRX Limited Hatchback 2010, 2011, 2012, 2013, 20142.5 GT Sedan 2009, 20102.5 GT Hatchback 2009, 2010
Subaru Legacy
GT Limited 2005, 2007, 2008, 2009GT 2005, 2006GT spec.B 2006, 2007, 2008, 2009
Subaru Forester
XT 2004, 2005, 2009XT Premium 2005, 2010, 2011, 2012, 2013XT Limited 2006, 2007, 2008, 2009, 2010Sports 2.5 XT 2008XT Touring 2011, 2012, 2013
Subaru Outback
XT 2005, 2006XT Limited 2005, 2007, 2008, 2009
Subaru Baja
Turbo 2004, 2005, 2006
Subaru WRX STI
Base 2015
Saab 9-2X
Linear 2005Aero 2005, 20062.5i 2006

This is GrimmSpeed’s Double Thick Gasket, and it fits between your exhaust manifold, and uppipe. What makes this gasket special is that it has 12 layers, which is double the size of your standard GrimmSpeed uppipe gasket. Whenever removing, or replacing any of your uppipe, you should always replace the gasket. 

Save yourself time and labor by using a gasket thick enough to seal the uppipe right on the first try. 

This product has no user uploaded media. You can upload your photo or video of your install by posting a review.

REVIEWS ( 10 )


Verified Purchase
Does the job
skeeshwrx69628 2 years ago
Extra think oem quality gasket. Thanks rsd
Verified Purchase
Its a thick gasket, what do you want from me?
Dylan 2 years ago
It works. It helps seal up any leak you may (probly do) have from the header to the up pipe.
Verified Purchase
So glad I ordered this
kinta94 2 years ago
When installing my invidia up pipe this really made me feel confident the seal would be perfect. Recommend this over an oem gasket. Grimmspeed gaskets are built well.

Grimmspeed for all you Subaru needs
avangerracer420a30108 3 years ago
I have yet to have a problem with Grimmspeed. Their customer service is amazing, and their products are even better. So holds true to the gasket here. Not only does it solve the gap issue that plagues the stock manifold to any up pipe, but its strong, and long lasting. You can tell it is built with quality in mind, like all GS products. For any of your gaskets, just spend the money and buy Grimmspeed. It's well worth it.
Verified Purchase
2x thick up pipe gasket
kar200sx87 3 years ago
had a leak at the up pipe to manifold flange and this gasket took care of my leak 100%. great product and great price...


  • AnswerQ: Same as lower?  bruins37199161519 10 months ago

    Is this the same as the lower Uppipe gasket grimmspeed makes? Part 026001

    • A: The difference between the gaskets is the thickness. This is a Double Thick gasket that will seal better and last longer. Otherwise they are the same fitment.

      10 months ago

  • AnswerQ: GRM003002  Marco 3 years ago

    Would this work with the grimmspeed ceramic uppipe part # GRM 003002? Thank you

    • A: Yes this is designed to work with our pipe. Mike

      GrimmSpeed 3 years ago

    • A: Yes, but if you are planning to purchase GRM 003002 it does come with all the gaskets required for installation.

      Nick S. 3 years ago